Dissertations / Theses on the topic 'Climatic change – Environmental aspects – Australia'

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1

Douglas, Steven Murray, and u4093670@alumni anu edu au. "Is 'green' religion the solution to the ecological crisis? A case study of mainstream religion in Australia." The Australian National University. Fenner School of Environment and Society, 2008. http://thesis.anu.edu.au./public/adt-ANU20091111.144835.

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A significant and growing number of authors and commentators have proposed that ecologically enlightened (‘greened’) religion is the solution or at least a major part of the solution to the global ecological crisis. These include Birch, 1965 p90; Brindle, 2000; Callicott, 1994; Gardner, 2002, 2003, 2006; Gore Jr., 1992; Gottlieb, 2006, 2007; Hallman, 2000; Hamilton, 2006b, a, 2007b; Hessel & Ruether, 2000b; Hitchcock, 1999; King, 2002; Lerner, 2006a; McDonagh, 1987; McFague, 2001; McKenzie, 2005; Nasr, 1996; Oelschlaeger, 1994; Palmer, 1992; Randers, 1972; Tucker & Grim, 2000; and White Jr., 1967. Proponents offer a variety of reasons for this view, including that the majority of the world’s and many nations’ people identify themselves as religious, and that there is a large amount of land and infrastructure controlled by religious organisations worldwide. However, the most important reason is that ‘religion’ is said to have one or more exceptional qualities that can drive and sustain dramatic personal and societal change. The underlying or sometimes overt suggestion is that as the ecological crisis is ultimately a moral crisis, religion is best placed to address the problem at its root. ¶ Proponents of the above views are often religious, though there are many who are not. Many proponents are from the USA and write in the context of the powerful role of religion in that country. Others write in a global context. Very few write from or about the Australian context where the role of religion in society is variously argued to be virtually non-existent, soon to be non-existent, or conversely, profound but covert. ¶ This thesis tests the proposition that religion is the solution to the ecological crisis. It does this using a case study of mainstream religion in Australia, represented by the Catholic, Anglican, and Uniting Churches. The Churches’ ecological policies and practices are analysed to determine the extent to which these denominations are fulfilling, or might be able to fulfil, the proposition. The primary research method is an Internet-based search for policy and praxis material. The methodology is Critical Human Ecology. ¶ The research finds that: the ‘greening’ of these denominations is evident; it is a recent phenomenon in the older Churches; there is a growing wealth of environmentalist sentiment and ecological policy being produced; but little institutional praxis has occurred. Despite the often-strong rhetoric, there is no evidence to suggest that ecological concerns, even linked to broader social concerns (termed ‘ecojustice’) are ‘core business’ for the Churches as institutions. Conventional institutional and anthropocentric welfare concerns remain dominant. ¶ Overall, the three Churches struggle with organisational, demographic, and cultural problems that impede their ability to convert their official ecological concerns into institutional praxis. Despite these problems, there are some outstanding examples of ecological policy and praxis in institutional and non-institutional forms that at least match those seen in mainstream secular society. ¶ I conclude that in Australia, mainstream religion is a limited part of the solution to the ecological crisis. It is not the solution to the crisis, at least not in its present institutional form. Institutional Christianity is in decline in Australia and is being replaced by non-institutional Christianity, other religions and non-religious spiritualities (Tacey, 2000, 2003; Bouma, 2006; Tacey, 2007). The ecological crisis is a moral crisis, but in Australia, morality is increasingly outside the domain of institutional religion. The growth of the non-institutional religious and the ‘spiritual but not religious’ demographic may, if ecologically informed, offer more of a contribution to addressing the ecological crisis in future. This may occur in combination with some of the more progressive movements seen at the periphery of institutional Christianity such as the ‘eco-ministry’ of Rev. Dr. Jason John in Adelaide, and the ‘Creation Spirituality’ taught, advocated and practiced by the Mercy Sisters’ Earth Link project in Queensland.
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Pang, Oi-ting Brenda, and 彭愷婷. "Climate change: the role of carbon dioxide." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46732937.

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3

Kent, Avidan. "International trade, investment, and climate change : a tale of legal and institutional fragmentation." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648583.

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Li, Qinglan, and 李晴岚. "Statistical and numerical studies of urbanization influence and climate change in South China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B45791041.

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Lee, Fung, and 李峰. "Climatic change and Chinese population growth dynamics over the last millennium." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39558599.

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Vladimirova, Ekaterina. "Values for sustainable future: transforming values in the context of climate change and global environmental degradation." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/241295.

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7

Najafi, Mohammad Reza. "Climate Change Impact on the Spatio-Temporal Variability of Hydro-Climate Extremes." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1114.

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The rising temperature of the earth due to climate change has shown to alter the variations of hydro-climate variables, including their intensities, frequencies and durations. Extreme events such as floods are, in particular, susceptible to any disturbances in climate cycles. As such it is important to provide policymakers with sufficient knowledge about the probable impacts of climate change on hydrologic extremes and most importantly on floods, which have the highest impacts on the societies. For this reason analysis of hydro-climate extremes is commonly performed using data at each site (or grid cell), however due to the limited number of extreme events, these analyses are not robust. Current methods, such as the regional frequency analysis, which combine data from different locations are incapable of incorporating the spatial structure of the data as well as other explanatory variables, and do not explicitly, assess the uncertainties. In this thesis the spatial hierarchical Bayesian model is proposed for hydro-climate extreme analyses using data recorded at each site or grid. This method combines limited number of data from different locations, estimates the uncertainties in different stages of the hierarchy, incorporates additional explanatory variables (covariates), and can be used to estimate extreme events at un-gaged sites. The first project develops a spatial hierarchical Bayesian method to model the extreme runoffs over two spatial domains in the Columbia River Basin, U.S. The model is also employed to estimate floods with different return levels within time slices of fifteen years in order to detect possible trends in runoff extremes. Continuing on the extreme analysis, the impact of climate change on runoff extremes is investigated over the whole Pacific Northwest (PNW). This study aims to address the question of how the runoff extremes will change in the future compared to the historical time period, investigate the different behaviors of the regional climate models (RCMs) regarding the runoff extremes, and assess the seasonal variations of runoff extremes. Given the increasing number of climate model simulations the goal of the third project is to provide a multi-model ensemble average of hydro-climate extremes and characterize the inherent uncertainties. Outputs from several regional climate models provided by NARCCAP are considered for the analysis in all seasons. Three combination scenarios are defined and compared for multi-modeling of extreme runoffs. The biases of each scenario are calculated and the scenario with the least bias is selected for projecting seasonal runoff extremes. The aim of the fourth project is to quantify and compare the uncertainties regarding global climate models to the ones from the hydrologic model structures in climate change impact studies. Various methods have been proposed to downscale the coarse resolution General Circulation Model (GCM) climatological variables to the fine scale regional variables; however fewer studies have been focused on the selection of GCM predictors. Additionally, the results obtained from one downscaling technique may not be robust and the uncertainties related to the downscaling scheme are not realized. To address these issues, in the fifth study we employed Independent Component Analysis (ICA) for predictor selection which determines spatially independent GCM variables (as discussed in Appendix A). Cross validation of the independent components is employed to find the predictor combination that describes the regional precipitation over the upper Willamette basin with minimum error. These climate variables along with the observed precipitation are used to calibrate three downscaling models: Multi Linear Regression (MLR), Support Vector Machine (SVM) and Adaptive-Network-Based Fuzzy Inference System (ANFIS).
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MacKendrick, Katharine. "Climate Change Adaptation Planning for Cultural and Natural Resource Resilience: a Look at Planning for Climate Change in Two Native Nations in the Pacific Northwest U.S." Thesis, University of Oregon, 2009. http://hdl.handle.net/1794/10022.

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xii, 172 p. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.
The literature indicates that for indigenous peoples the environmental impacts of climate change and some proposed solutions threaten lifeways, subsistence, economic ventures, future growth, cultural survivability, rights, land ownership, and access to resources. However, limited understanding and awareness of the vulnerability and capacity of American Indian and Alaska Native tribes and of climate change impacts at the local level affect climate policymaking, planning, and equity. Case studies with the Coquille and Hoopa Valley Indian tribes in the Pacific Northwest U.S. explore the key considerations in planning for climate change adaptation, particularly for cultural and natural resource resilience. Document analysis and semi-structured interviews offer insight on the risks the tribes face and the role of traditional and local knowledge and experience in planning for climate change adaptation. Conclusions offer information useful in planning for climate impacts, local-level climate adaptation research, and climate policy development at the local to global levels.
Committee in Charge: Dr. Michael Hibbard, Chair; Dr. Cassandra Moseley; Kathy Lynn
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Slechten, Aurelie. "Policies for climate change." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209493.

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In my thesis, I address two important issues: (i) the creation of a price signal through the use of carbon markets (or cap-and-trade schemes) and (ii) the necessity to reach a global agreement on greenhouse gas emission reduction policies. It consists of three separate papers. Chapters 2 and 3 of this thesis emphasize theoretically and empirically the fact that achieving international cooperation on climate change is very difficult. Chapter 3 suggests that the global nature of the climate change problem and the design of climate agreements (i.e. the means available to reduce CO2 emissions) may explain this failure. Chapter 2 shows theoretically that asymmetric information between countries may exacerbate the free-rider problem. These two chapters also provide some possible solutions to the lack of international cooperation. To address the issue of information asymmetry, chapter 2 proposes the creation of institutions in charge of gathering and certifying countries' private information before environmental negotiations. If achieving international cooperation is still not possible, chapter 3 suggests that regional cooperation may supplement global treaties. Chapter 1 presents an example of such a regional agreement to reduce CO2 emissions. The EU emissions trading system is a cornerstone of the European Union's policy to combat climate change. However, as it is highlighted in chapter 1, the design of such regional carbon markets really matters for their success in reducing carbon emissions. This chapter shows the interactions between intertemporal permit trading and the incentives of firms to undertake long-term investments in abatement technologies.
Doctorat en Sciences économiques et de gestion
info:eu-repo/semantics/nonPublished
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10

Nancarrow, Tanya Lawrene. "Climate change impacts on dietary nutrient status of Inuit in Nunavut, Canada." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112545.

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This thesis characterizes the nutritional implications of climate change impacts on the traditional food system of Inuit in Nunavut, Canada. Both focus groups and food frequency questionnaires were used in collaboration with two communities to describe current climate change impacts on traditional food and define nutrient intake. Currently, both communities experience climate-related changes to important species which provide high levels of key nutrients. If climate changes continue to impact traditional food species, serious nutritional losses may occur unless healthy alternatives can be found. Policy should support Inuit communities to maintain optimal nutrition in the face of climate change.
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Sibanda, Patience. "Climate change mitigation and resilience by four major supermarkets in East London, South Africa." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/5406.

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Climate change is a human development challenge. Its negative impacts have the potential to reverse the human development gains made in Africa. South Africa, just like many other countries in the Global South, is being negatively affected by climate change. The country`s economy is largely dependent on agriculture, extractive industries and manufacturing, all of which are vulnerable to climate change in different ways. This vulnerability means different public and private stakeholders must institute sustainable climate change mitigation and adaptation measures so as to ameliorate climate change impacts. Gradually transforming to an environmentally friendly ‘green economy’ and the reduction of greenhouse gas emissions are some of South Africa’s climate change mitigation priorities. Just like the public sector, the private sector has a major role to play in this transition to a low carbon economy through minimising its carbon emissions in their operations. Against this background, this qualitative research examines the role played by four major supermarkets (Shoprite, Spar, Pick n Pay and Woolworths), in climate change mitigation and resilience building. It does so through an appraisal of their mitigation and resilience programs. The four supermarkets were purposively selected in East London, Eastern Cape. Data collection combined heavy reliance on desktop discourse analysis with field interviews in the form of purposively sampled key informant interviews. The results show that the four major supermarkets are implementing a variety of climate change mitigation and resilience strategies. These include reduction of greenhouse gas emissions, prioritisation of renewable energy, recycling and environmentally friendly packaging, promotion of sustainable ways of farming and improved fuel efficiency in their transport systems. In terms of policy improvement, the study recommends that there is need for supermarkets to learn from each other’s’ climate change mitigation initiatives so as to advance South Africa’s ‘green economy’ agenda.
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12

Yazzie, Kimberly Crystal. "Watershed Response to Climate Change and Fire-Burns in the Upper Umatilla River Basin Using the Precipitation Runoff Modeling System." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3127.

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This study provides an analysis of watershed response to climate change and forest fire impacts, to better understand the hydrologic budget and inform water management decisions for present and future needs. The study site is 2,365 km2, located in the upper Umatilla River Basin (URB) in northeastern Oregon. The Precipitation Runoff Modeling System, a distributed-parameter, physical-process watershed model, was used in this study. Model calibration yielded a Nash Sutcliffe Model Efficiency of 0.73 for both calibration (1995-2010) and validation (2010-2014) of daily streamflow. Ten Global Climate Models using Coupled Model Intercomparison Project Phase 5 experiments with Representative Concentration Pathways 4.5 and 8.5 (RCP), were used to observe hydrologic regime shifts in the 2020s, 2050s, and 2080s. Mean center timing of flow occurs earlier in the year in both pre- and post-fire conditions, where there are increased winter flows and decreased summer flows throughout the 21st century. Change in temperature and percent change in precipitation is more variable in the summer than winter increasing over time, with a slight decrease in winter precipitation in the 2080s in RCP 8.5. Temperature increases 1.6°C in RCP 4.5 and 3.3°C in RCP 8.5 by the end of the 21st century. The ratio of Snow Water Equivalent to Precipitation decreases 96% in the 2080s in RCP 8.5 before forest cover reduction, and decreases 90-99% after forest cover reduction. Potential basin recharge and the base-flow index are both sustained throughout the 21st century with slight declines before forest cover reduction, with an increase in basin recharge and increase in base-flows in the 2080s after fire-burns. However, the simulated sustained base-flows and area-weighted basin recharge in this study, do not take into account the complex geologic structure of the Columbia River Basalt Group (CRBG). A more robust characterization and simulation of URB aquifer recharge would involve coupling the PRMS model with a groundwater model in a future study. Although groundwater recharge in the CRBG in the URB is not well understood, the long-term decline of groundwater storage presents a serious environmental challenge for the Confederated Tribes of the Umatilla Indian Reservation and communities in the URB.
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Nemeth, Michael W., and University of Lethbridge Faculty of Arts and Science. "Climate change impacts on streamflow in the upper North Saskatchewan River Basin, Alberta." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, c2010, 2010. http://hdl.handle.net/10133/2477.

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This research focuses on the estimation of the impacts of climate change on water yield, streamflow extremes, and the streamflow regimes in the Cline River Watershed, and consequently, water availability for hydropower generation in this area. The Cline River Watershed comprises the flow into Lake Abraham, the reservoir for Bighorn Dam, is part of the upper North Saskatchewan River basin (UNSRB). This objective was achieved by parameterizing the ACRU agro-hydrological modelling system. After parameterization was complete, ACRU output was calibrated and verified against available observed data, including temperature, snow water equivalent, glacier mass balance, potential evapotranspiration, and streamflow data. After ACRU was properly verified, five selected climate change scenarios to estimate impacts of climate change in this area. Overall water yields are projected to increase over time. A large shift in seasonality is likely the biggest impact climate change will have on water resources in the Cline River Watershed.
xii, 126 leaves : ill., maps ; 29 cm
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Booth, Evan L. J. "Modeling the effects of climate change on glaciers in the Upper North Saskatchewan River Basin." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, c2011, 2011. http://hdl.handle.net/10133/3227.

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This thesis is focused on determining the rate at which the climate of western North America (WNA) has changed in recent history, and looks at the impact that projected future climatic changes will have on a large glaciated watershed in the Canadian Rocky Mountains. The rate of change over WNA is quantified for 485 climate stations for the period 1950-2005 using indicators developed by the World Meteorological Organization (WMO). Results of the analysis show statistically significant historical trends across the study area. To gauge the effect of climate change on glaciers, a mass balance model was developed and integrated with the University of Lethbridge GENESYS hydrometeorological model. GCM future climate scenarios were used to model change in the Upper North Saskatchewan River Basin through 2100. Results forecast dramatic declines (> 80%) in total glacier area, ice volume, and streamflow contribution by 2100.
ix, 137 leaves ; 29 cm
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Tousignant, Denise. "Selection response to global change of Brassica juncea (L.) czern." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69693.

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The potential for an adaptive response to global climatic change was evaluated for an annual C$ sb3$ weed, Brassica juncea, by performing a selection on fecundity for eight generations. During the selection, atmospheric carbon dioxide and temperature were gradually increased from current levels (370 $ rm mu L cdot L sp{-1}$ CO$ sb2$, 20$ sp circ$C) to conditions predicted during the next century by climate models (650 $ rm mu L cdot L sp{-1}$ CO$ sb2$, 23.6$ sp circ$C) including heat stress events at 32$ sp circ$C/26$ sp circ$C day/night), At the end of the selection, a reciprocal transplant experiment was conducted to identify genetic differences between control selection lines of plants and those selected under increasing CO$ sb2$ and temperature. I observed a genetic adaptation of early vegetative growth elevated CO$ sb2$ and temperature, which resulted in to 63% more biomass and 11% higher photosynthetic rates. Reproductive biomass, however, was decreased during the selection, mainly due to temperature stress, which disrupted flower development and induced strong maternal effects, counteracting the selection on fecundity.
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Flinn, Stephen Wayne. "Disjointed Cosmopolitanism: Climate Change and Lived Experience in Portland, Oregon." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1435.

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Climate change has emerged as one of the most significant issues facing the world. This research endeavored to uncover and describe the lived experience of Portland, Oregon residents in relation to the substantive issue of climate change. The specific purpose of this research was to gain a better understanding of the ways that Portland residents conceive of and communicate about climate change. Utilizing semi-structured phenomenological interviews, particular attention was paid to the culture of Portland residents, their lived experience and how the issue of climate change manifests itself in their everyday experiences. In addition, this particular phenomenological inquiry incorporated elements of auto ethnography by positioning the researcher`s experiences, imagination and intellect at the center of the research endeavor. Multiple themes emerged from the in-depth, descriptive interviews that helped to reveal the structure or essence of the participant`s experience(s). A single meta-theme was identified and informed by contemporary theories such as Cosmopolitanism and the Environmental Justice Paradigm.
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Wherry, Susan Amelia. "Climate Change Effects and Water Vulnerability in the Molalla Pudding River Basin, Oregon, USA." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/556.

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Water management plans are typically developed using historical data records and historical return periods for extreme events, such as floods or droughts. Since these analyses of return periods typically assume a certain degree of stationarity (constant mean, standard deviation, distribution) in hydrologic variables, the potential future impacts of climate change are excluded. In developing water management plans, predicted changes to climate variables should be considered to evaluate the degree of non-stationarity that may exist in the future. In this way, regions most sensitive to climate change can be identified and managed appropriately. This study performed such a task by using predicted climate data that were downscaled from general circulation models (GCM) by regional climate models (RCM) to compare climate variables in the historical period of 1971-1998 to the future period of 2041-2068. The study evaluated the precipitation and minimum/maximum temperature data from five different GCM/RCM combinations: 1) CCSM/CRCM; 2) CCSM/WRFG; 3) CGCM3/CRCM; 4) CGCM3/WRFG; and 5) HadCM3/HRM3. The five datasets were then used to calculate drought indices and drive a calibrated PRMS model of the Molalla Pudding river basin in order to evaluate changes in droughts and streamflow. The predicted changes in droughts and streamflow were then evaluated with social/economic factors for twelve cities in the Molalla Pudding river basin by two different water vulnerability indices. The index values were used to determine a rank for each city that indicated its relative vulnerability to water scarcity as compared to the other cities. In this study, three out of the five datasets predicted increased precipitation (+97-115 mm/year) over the Molalla Pudding basin and the two datasets using the CCSM GCM data predicted either no change or slightly decreased precipitation (-60 mm/year) over the Molalla Pudding basin in 2041-2068. All datasets predicted increased minimum and maximum average temperature of +1.5°C and +1.4°C respectively, and all datasets displayed increasing trends in temperature. The drought indices predicted fewer drought events (-2.4 events) over 2041-2068 with no change in duration, and no change to the number of serious drought events over 2041-2068 but with increased durations (+1.9 months). Results from the hydrologic modeling predicted increased streamflow (+4-249 cfs) in four out of the five future datasets. Using the predicted changes in hydrologic variables and social/economic census data from 2000, two types of water vulnerability indices were calculated for the twelve cities of interest. The results suggested that cities in the western portion of the basin would be more susceptible to current and future water vulnerability due to high irrigation demands for water and high social vulnerability as determined by minority populations and higher poverty, while the small cities with less dependence on agriculture would be less vulnerable.
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Tsang, Heung-chun, and 曾向俊. "The impact of the global-warming-led climate change on agricultural production of major grain producing regions in China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46733048.

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Baudains, Catherine Mary. "Environmental education in the workplace : inducing voluntary transport behaviour change to decrease single occupant vehicle trips by commuters into the Perth CBD." Access via Murdoch University Digital Theses Project, 2003. http://wwwlib.murdoch.edu.au/adt/browser/view/adt-MU20040310.121357.

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20

Gill, Nicholas Geography &amp Oceanography Australian Defence Force Academy UNSW. "Outback or at home? : environment, social change and pastoralism in Central Australia." Awarded by:University of New South Wales - Australian Defence Force Academy. School of Geography and Oceanography, 2000. http://handle.unsw.edu.au/1959.4/38728.

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This thesis examines the responses of non-indigenous pastoralists in Central Australian rangelands to two social movements that profoundly challenge their occupancy, use and management of land. Contemporary environmentalism and Aboriginal land rights have both challenged the status of pastoralists as valued primary producers and bearers of a worthy pioneer heritage. Instead, pastoralists have become associated with land degradation, biodiversity loss, and Aboriginal dispossession. Such pressure has intensified in the 1990s in the wake of the native Title debate, and various conservation campaigns in the arid and semi-arid rangelands. The pressure on pastoralists occur in the context of wider reassessment of the social and economic values or rangelands in which pastoralism is seen as having declined in value compared to ???post-production??? land uses. Reassessments of rangelands in turn are part of the global changes in the status of rural areas, and of the growing flexibility in the very meaning of ???rural???. Through ethnographic fieldwork among largely non-indigenous pastoralists in Central Australia, this thesis investigates the nature and foundations of pastoralists??? responses to these changes and critiques. Through memory, history, labour and experience of land, non-indigenous pastoralists construct a narrative of land, themselves and others in which the presence of pastoralism in Central Australia is naturalised, and Central Australia is narrated as an inherently pastoral landscape. Particular types of environmental knowledge and experience, based in actual environmental events and processes form the foundation for a discourse of pastoral property rights. Pastoralists accommodate environmental concerns, through advocating environmental stewardship. They do this in such a way that Central Australia is maintained as a singularly pastoral landscape, and one in which a European, or ???white???, frame of reference continues to dominate. In this way the domesticated pastoral landscapes of colonialism and nationalism are reproduced. The thesis also examines Aboriginal pastoralism as a distinctive form of pastoralism, which fulfils distinctly Aboriginal land use and cultural aspirations, and undermines the conventional meaning of ???pastoralism??? itself. The thesis ends by suggesting that improved dialogue over rangelands futures depends on greater understanding of the details and complexities of local relationships between groups of people, and between people and land.
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Oosthuizen, Hamman Jacobus. "Modelling the financial vulnerability of farming systems to climate change in selected case study areas in South Africa." Thesis, Stellenbosch: Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95831.

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Thesis (PhD)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: Numerous studies indicate that the agricultural sector is physically and economically vulnerable to climate change. In order to determine possible impacts of projected future climates on the financial vulnerability of selective farming systems in South Africa, a case study methodology was applied. The integrated modelling framework consists of four modules, viz.: climate change impact modelling, dynamic linear programming (DLP) modelling, modelling interphases and financial vulnerability assessment modelling. Empirically downscaled climate data from five global climate models (GCMs) served as base for the integrated modelling. The APSIM crop model was applied to determine the impact of projected climates on crop yield for certain crops in the study. In order to determine the impact of projected climates on crops for which there are no crop models available, a unique modelling technique, Critical Crop Climate Threshold (CCCT) modelling, was developed and applied to model the impact of projected climate change on yield and quality of agricultural produce. Climate change impact modelling also takes into account the projected changes in irrigation water availability (ACRU hydrological model) and crop irrigation requirements (SAPWAT3 model) as a result of projected climate change. The model produces a set of valuable results, viz. projected changes in crop yield and quality, projected changes in availability of irrigation water, projected changes in crop irrigation needs, optimal combination of farming activities to maximize net cash flow, and a set of financial criteria to determine economic viability and financial feasibility of the farming system. A set of financial criteria; i.e. internal rate of return (IRR), net present value (NPV), cash flow ratio, highest debt ratio, and highest debt have been employed to measure the impact of climate change on the financial vulnerability of farming systems. Adaptation strategies to lessen the impact of climate change were identified for each case study through expert group discussions, and included in the integrated modelling as alternative options in the DLP model. This aims at addressing the gap in climate change research, i.e. integrated economic modelling at farm level; thereby making a contribution to integrated climate change modelling.
AFRIKAANSE OPSOMMING: Die fisiese sowel as ekonomiese kwesbaarheid van die landbousektor as gevolg van klimaatverandering word deur verskeie studies beklemtoon. ‘n Gevallestudie-benadering is gebruik ten einde die potensiële impak van klimaatsverandering op die finansiële kwesbaarheid van verskillende boerderystelsels te bepaal. Die geïntegreerde klimaatsveranderingmodel bestaan uit vier modelleringsmodules, naamlik: klimaatsverandering, dinamiese liniêre programmering (DLP), interfases en finansiële-kwesbaarheidsontleding. Empiries afgeskaalde klimatologiese data van vyf verskillende klimaatmodelle dien as basis vir die geïntegreerde klimaatsveranderingmodel. Die APSIM gewas-model word aangewend om die impak van klimaatsverandering op gewasse-opbrengs te bepaal. Vir sekere gewasse is daar egter nie modelle beskikbaaar nie en het gevolglik die ontwikkeling van ‘n nuwe model genoodsaak. Die Kritiese Gewasse Klimaatsdrempelwaarde (KGKD) modelleringstegniek is ontwikkel ten einde die impak van klimaatsverandering op die opbrengs en kwaliteit van gewasse te kwantifiseer. Die geïntegreerde klimaatsveranderingmodel neem ook die verwagte verandering in besproeiingswaterbeskikbaarheid (ACRU-hidrologiemodel) en gewas-besproeiingsbehoeftes (SAPWAT3-model) as gevolg van klimaatsverandering in ag. Die model lewer waardevolle resultate op, naamlik: geprojekteerde veranderinge in gewasse-opbrengs en -kwaliteit, geprojekteerde verandering in beskikbaarheid van besproeiingswater en gewasse-besproeiingsbehoeftes, die optimale kombinering van boerdery-aktiwiteite om netto kontantvloei te maksimeer, asook ‘n stel finansiële resultate wat die impak van klimaatsverandering kwantifiseer. Die finansiële kriteria sluit in: interne opbrengskoers, netto huidige waarde, kontanvloeiverhouding, hoogste skuldverhouding en hoogste skuldvlak. Deur middel van deskundige-groepbesprekings is aanpassingstrategieë vir elk van die gevallestudies geïdentifiseer en by die geïntegreerde model ingesluit as alternatiewe opsies in die DLP-model. Die studie poog om die gaping in die huidige klimaatsveranderingnavorsing met betekking tot ‘n geïntegreerde ekonomiese model op plaasvlak aan te spreek en sodoende ‘n bydrae tot geïntegreerde klimaatveranderingmodellering te maak.
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22

Freeland, Ballantyne Erin. "Sustainability's paradox : community health, climate change and petrocapitalism." Thesis, University of Oxford, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711671.

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23

Azarch, Anna. "Climate change negotiations and the North-South relationship : an exploration of continuity and change." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5202.

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Thesis (MA (Political Science. International Studies))--University of Stellenbosch, 2010.
Bibliography
ENGLISH ABSTRACT: The politics of climate change has thus far been marked by controversy and a lack of consensus in regards to the best manner in which to comprehend and mitigate this problem. This is further aggravated by the characterisation of climate change as a global problem requiring a global solution which has served to only further complicate inter-state relations. While a number of analysts have remarked that the North-South relationship is no longer a meaningful analytical tool in international relations, it will be the purpose of this study to explore this contention within the field of climate change negotiations and to identify both the transformation and continuity within the relationship between the North and South. The unsuccessful nature of climate negotiations are largely held to be the result of the rift between the North and South, where the issues relating to the global political economy are largely responsible for the lack of consensus being reached between developing and developed countries. All climate negotiations since the 1972 UN Conference on the Environment and Development have showcased the tension between the two regions in regards to climate change mitigation and their inability to overcome this fissure. More importantly, the ensuing Copenhagen Summit of 2009 further highlighted a rift amongst the developing countries of the South, and between the developed and developing countries. As a consequence, the main aim of the research will be to understand the character of the global interactions between the North and South in terms of the context of global environmental politics. It is also the purpose of this research to gain a more comprehensive account of the sequence of causation within this relationship which stalled the negotiating process and lastly, to understand the conceptual demarcations of the two terms in the post-Cold War era so as to better understand the nature of the relationship between the two regions. What may be surmised by the study is that there is still a continuity to be found in the international arena pertaining to the North-South relationship. However, the Copenhagen Summit has been instrumental in showcasing the growing stratification that is found within the South and as a result has highlighted the cross-alliances that have formed between the North and South in order to maintain economic growth. Overall, while the North-South relationship does impact the nature of climate mitigation negotiations, the stratification of states based upon economic and developmental divergences will result in states forming alliances based upon economic self-interest.
AFRIKAANSE OPSOMMING: Die politiek van klimaatsverandering is tot dusver gekenmerk aan kontroversie en ‟n gebrek aan konsensus met betrekking tot die mees effektiewe wyse waarop hierdie probleem verstaan en gemitigeer kan word. Die probleem word verder vererger deur die kenmerk van klimaatsverandering as ‟n globale probleem wat ‟n globale oplossing verg, wat tot die verdere komplikasie van interstaat-verhoudings gelei het. Verskeie analiste het opgemerk dat die verhouding tussen die Noorde en Suide nie meer dien as betekenisvolle analitiese gereedskap op die gebied van internasionale verhoudings nie. Die doel van hierdie ondersoek is gevolglik om hierdie aanname in oënskou te neem, en om beide transformasie en kontinuïteit binne die verhouding tussen die Noorde en Suide te identifiseer. Die onsuksesvolle aard van klimaatsonderhandelinge word grootliks toegeskryf aan die onenigheid tussen die Noorde en Suide, met kwessies rondom die globale politieke ekonomie grootliks verantwoordelik vir die gebrek aan konsensus tussen die streke. Sedert die 1972 VN Konferensie oor die Omgewing en Ontwikkeling het alle klimaatsonderhandelinge die spanning tussen die twee streke met betrekking to klimaatveranderingsversagtings en hul onvermoë om hierdie skeur te oorbrug, ten toon gestel. Die 2009 Kopenhagen-beraad het ‟n onenigheid ontbloot tussen die ontwikkelende lande in die Suide en tussen ontwikkelende en ontwikkelde lande. Gevolglik is die hoofdoelstelling van hierdie studie om die aard van globale interaksies tussen die Noorde en Suide te verstaan met betrekking tot die konteks van globale omgewingspolitiek. Die doel van die navorsing is ook om ‟n meer omvattende verklaring te verkry oor die volgorde van oorsaaklike verbande binne hierdie verhouding wat die onderhandelingsproses tot stilstand gebring het en laastens, om die konseptuele afbakening van hierdie twee terme in die post-Koue Oorlog era en die aard van die verhouding tussen die twee streke beter te verstaan. Hierdie studie wys dat daar steeds kontinuïteit in die internasionale arena is met betrekking tot die verhouding tussen die Noorde en Suide. Die 2009 Kopenhagen-beraad was egter instrumenteel om die groeiende stratifikasie wat binne die Suide gevind word uit te lig, en die kruisalliansies wat tussen die Noorde en Suide gevorm is om ekonomiese groei in stand te hou, te beklemtoon. Alhoewel die verhouding tussen die Noorde en Suide tog ‟n impak op die aard van klimaatsversagtingsonderhandelings uitoefen, sal die stratifikasie van state wat op ekonomiese- en ontwikkelingsafwykings gebaseer is tot gevolg hê dat state alliansies vorm op grond van ekonomiese selfbelange.
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Haskins, Craig Ian. "Impacts of climate change : some economic considerations for decision-makers in the City of Cape Town, using Langebaan Lagoon as a case study." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50366.

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Thesis (MBA)--Stellenbosch University, 2005
ENGLISH ABSTRACT: Strong scientific evidence suggests that global warming is altering the world's climate and that this phenomenon is being accelerated as a result of human activities. Climate change is affecting weather patterns and, in addition to demonstrated sea-level rise, these in turn have and are likely to continue having significant, mostly negative, impacts - both economic and loss of life - on governments, industries and people. Ocean levels rose between 15 and 20 centimeters in the 20th century, mostly as a result of melting glaciers and thermal expansion of the oceans. The International Panel on Climate Change (IPCC, 2001a: 16) in its 2001 estimate suggests a potential rise in average sea level from nine to 88 centimeters from 1990 to 2100. Areas of risk in the City of Cape Town are residential property, infrastructure and beaches in low-lying areas. These areas are likely to be impacted as a result of increasing sea-level rise and increasing severity and frequency of storms. This study seeks to • demonstrate that sufficient evidence exists to compel decision-makers in the City of Cape Town that climate change and the impacts of sea-level rise and increasing frequency and severity of storms need to be considered in development planning; and • test cost-benefit analysis (through climate change impact analysis) as a tool for decision-makers to consider adaptation measures, using Langebaan as a case study. The research comprises a comprehensive literature study of the impacts of climate change, particularly with respect to coastal areas. A case study based on the eroding beaches at Langebaan is used to test cost-benefit analysis as a tool for decision-makers in dealing with the impacts. Despite the uncertainties associated with the impacts of climate change (time, place and extent) the issues of sea-level rise and severe storms seem to warrant further investigation, especially at a local level. This study provides local context to a global problem and makes recommendations for decision-makers in the City of Cape Town. Climate impact analysis (incorporating cost-benefit analysis) is suggested as a tool to quantify avoided damages at vulnerable coastal sites in the City of Cape Town. In conclusion, the impacts of climate change are a complex and multivariate problem. However, there are a number of identified vulnerable areas along the coastline of the City of Cape Town and using tools like climate impact analysis and cost-benefit analysis may assist in identifying, costing and managing these economic risks before the problem becomes unmanageable - a case for quantifying avoided damage.
AFRIKAANSE OPSOMMING: Sterk wetenskaplike bewyse bestaan dat globale verwarming besig is om die wêreld se klimaat te verander en hierdie verskynsel word versnel deur die mens se handelinge. Klimaatsverandering affekteer weerpatrone en bykomend tot gedemonstreerde stygende seevlakke, sal dit waarskynlik 'n langdurige en meestal negatiewe impak - beide ekonomies en lewensverlies - op regerings, industrieë en mense hê. Seevlakke het in die twintigste eeu met tussen 15 en 20 sentimeter gestyg, meestal as gevolg van smeltende ysberge en hitte uitsetting van die oseane. Die 'International Panel on Climate Change' (IPCC, 2001a: 16) het in hul skatting 'n waarskynlike seevlak styging van tussen 9 en 88 sentimeters voorspel vir die tydperk 1990 - 2100. Risikogebiede in die Stad Kaapstad is residensiële gebiede, infrastruktuur en strande in laagliggende gebiede. Hierdie gebiede sal ge-affekteer word deur stygende seevlakke en groter en meer gereelde storms. Hierdie studie poog om • te demonstreer dat voldoende bewyse bestaan om besluitnemers van die Stad Kaapstad te oortuig dat weerveranderinge en die impak van seevlakstygings en toenemende storms in aanmerking geneem moet word in ontwikkelings beplanning; en • koste-voordeel analises (deur klimaatsverandering impak analises) te beproef as 'n hulpmiddel vir besluitnemers om aanpasbare maatreëls te oorweeg, deur Langebaan as 'n voorbeeld te gebruik. Ten spyte van onsekerhede wat saamgaan met die impak van klimaatverandering (tyd, plek en omvang) regverdig die problem van stygende seevlakke en erge storms verdere ondersoek, meer spesifiek op plaaslike vlak. Hierdie studie gee plaaslike konteks aan 'n globale probleem en maak aanbevelings aan beplanners van die Stad Kaapstad. Klimaat impak analises word as hulpmiddel voorgestel om vermybare skades by kwesbare kusgebiede in die Stad Kaapstad te kwantifiseer. Ten slotte: die impak van klimaatsverandering is 'n komplekse probleem met baie fasette. Nietemin is daar verskere sensitiewe areas langs die kus van Stad Kaapstad, en klimaat impak analises en koste-voordeel analises kan help met die identifisering, kosteberekening en bestuur van hierdie ekonomiese risiko areas, voordat dit onhanteerbaar raak.
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25

Agenbag, Lize. "A study on an altitudinal gradient investigating the potential effects of climate change on Fynbos and the Fynbos-succulent Karoo boundary /." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/954.

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26

Chittick, Sharla. "Pride and prejudice, practices and perceptions : a comparative case study in North Atlantic environmental history." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3702.

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Due to escalating carbon-based emissions, anthropogenic climate change is wreaking havoc on the natural and built environment as higher near-surface temperatures cause arctic ice-melt, rising sea levels and unpredictable turbulent weather patterns. The effects are especially devastating to inhabitants living in the water-worlds of developing countries where environmental pressure only exacerbates their vulnerability to oppressive economic policies. As climatic and economic pressures escalate, threats to local resources, living space, safety and security are all reaching a tipping point. Climate refugees may survive, but they will fall victim to displacement, economic insecurity, and socio-cultural destruction. With the current economic system in peril, it is now a matter of urgency that the global community determine ways to modify their behaviour in order to minimize the impact of climate change. This interdisciplinary comparative analysis contributes to the dialogue by turning to environmental history for similar scenarios with contrasting outcomes. It isolates two North Atlantic water-worlds and their inhabitants at an historical juncture when the combination of climatic and economic pressures threatened their survival. During the sixteenth and seventeenth centuries, the Hebrideans in the Scottish Insular Gàidhealtachd and the Wabanaki in Ketakamigwa were both responding to the harsh conditions of the ‘Little Ice Age.’ While modifying their resource management, settlement patterns, and subsistence behaviours to accommodate climate change, they were simultaneously targeted by foreign opportunists whose practices and perceptions inevitably induced oppressive economic pressure. This critical period in their history serves as the centre of a pendulum that swings back to deglaciation and then forward again to the eighteenth century to examine the relationship between climate change and human behaviour in the North Atlantic. It will be demonstrated that both favourable and deteriorating climate conditions determine resource availability, but how humans manage those resources during feast or famine can determine their collective vulnerability to predators when the climate changes. It is argued that, historically, climate has determined levels of human development and survival on either side of the North Atlantic, regardless of sustainable practices. However, when cultural groups were under extreme environmental and economic pressure, there were additional factors that determined their fate. First, the condition of their native environment and prospect for continuing to inhabit it was partially determined by the level of sustainable practices. And, secondly, the way in which they perceived and treated one another partially determined their endurance. If they avoided internal stratification and self-protectionism by prioritising the needs of the group over that of the individual, they minimised fragmentation, avoided displacement, and maintained their social and culture cohesion.
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27

Waibel, Michael Scott. "Model Analysis of the Hydrologic Response to Climate Change in the Upper Deschutes Basin, Oregon." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/45.

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Considerable interest lies in understanding the hydrologic response to climate change in the upper Deschutes Basin, particularly as it relates to groundwater fed streams. Much of the precipitation occurring in the recharge zone falls as snow. Consequently, the timing of runoff and recharge depend on accumulation and melting of the snowpack. Numerical modeling can provide insights into evolving hydrologic system response for resource management consideration. A daily mass and energy balance model known as the Deep Percolation Model (DPM) was developed for the basin in the 1990s. This model uses spatially distributed data and is driven with daily climate data to calculate both daily and monthly mass and energy balance for the major components of the hydrologic budget across the basin. Previously historical daily climate data from weather stations in the basin was used to drive the model. Now we use the University of Washington Climate Impact Group's 1/16th degree daily downscaled climate data to drive the DPM for forecasting until the end of the 21st century. The downscaled climate data is comprised from the mean of eight GCM simulations well suited to the Pacific Northwest. Furthermore, there are low emission and high emission scenarios associated with each ensemble member leading to two distinct means. For the entire basin progressing into the 21st century, output from the DPM using both emission scenarios as a forcing show changes in the timing of runoff and recharge as well as significant reductions in snowpack. Although the DPM calculated amounts of recharge and runoff varies between the emission scenario of the ensemble under consideration, all model output shows loss of the spring snowmelt runoff / recharge peak as time progresses. The response of the groundwater system to changing in the time and amount of recharge varies spatially. Short flow paths in the upper part of the basin are potentially more sensitive to the change in seasonality. However, geologic controls on the system cause this signal to attenuate as it propagates into the lower portions of the basin. This scale-dependent variation to the response of the groundwater system to changes in seasonality and magnitude of recharge is explored by applying DPM calculated recharge to an existing regional groundwater flow model.
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28

Louw, E. J. M. "Climate change in the Western Cape : a disaster risk assessment of the impact on human health." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1158.

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Thesis (DPhil (Geography and Environmental Studies))—University of Stellenbosch, 2007.
Background The Disaster Management Act (Act 57 of 2002) instructs a paradigm shift from preparedness, response and recovery towards risk reduction. In order to plan for and mitigate risks, all spheres of government must firstly assess their hazards, vulnerabilities, capacity to cope and therefore risks. Studies in this regard, in South Africa, have however only focussed on current risks. Climate Change has now been accepted by leading international studies as a reality. Climate change can impact upon many aspects of life on earth. Studies to quantify the impact of climate change on water resources, biodiversity, agriculture and sustainable development are steadily increasing, but human health seem to have been neglected. Only general predictions, mostly regarding vector-borne disease and injury related to natural disasters are found in literature. Studies in South Africa have only focussed on malaria distribution. Most studies, internationally and the few in South Africa, were based on determining empirical relationships between weather parameters and disease incidence, therefore assessing only the hazard, and not the disaster risk. Methodology This study examines the impact of climate change on human health in the Western Cape, within the context of disaster management. A qualitative approach is followed and includes: · A literature overview examining predicted changes in climate on a global and regional scale, · A discussion on the known relationships and possible impacts climate change might have on human health, · A disaster risk assessment based on the status quo for a case study area, the Cape Winelands District Municipality, · An investigation into the future risks in terms of health, taking into account vulnerabilities and secondary impacts of climate change, resulting in the prioritisation of future risks. · Suggestions towards mitigation within the South African context. Results The secondary impacts of climate change were found to have the larger qualitative impact. The impact of climate change on agriculture, supporting 38% of the population can potentially destroy the livelihoods of the workforce, resulting in poverty-related disease. Other impacts identified were injuries and disease relating to temperature, floods, fire and water quality. Conclusion Risk is a function of hazard, vulnerability and capacity to cope. The impact of an external factor on a ‘spatial system’ should be a function of the impacts on all these factors. Disasters are not increasing because of the increase in the frequency of hazards, but because of the increasing vulnerability to hazards. This study illustrated that the major impacts of the external factor could actually be on the vulnerabilities and the indirect impacts, and not on the hazard itself. Climate change poses a threat to many aspects of the causative links that should be addressed by disaster management, and its impacts should be researched further to determine links and vulnerabilities. This research also illustrates that slow onset disasters hold the potential to destroy just as much as extreme events such as Katrina, Rita or a tsunami. It also reiterates that secondary impacts may not be as obvious, but are certainly not of secondary importance.
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29

Butler, Ainslie Jane. "Salmonella, weather and climate change in Australia." Phd thesis, 2013. http://hdl.handle.net/1885/156099.

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Global temperatures have increased over the previous century, due in large part to human actions. Changes in climate and increases in the variability and distribution of weather patterns are expected to have both direct and indirect consequences on human health. The incidence and distribution of infectious diseases in Australia is expected to shift as a result of increasing temperatures and shifts in precipitation and relative humidity patterns. Previous research has demonstrated a relationship between Salmonella infection and weather. This thesis investigates this relationship at a level of detail that has not previously been explored. This thesis uses local, daily data to explore the relationship between weather and Salmonella infection across Australia. Using notified cases of Salmonella infection from the national surveillance authority, and transformed weather station data from 1991 to 2004, a positive relationship between increasing temperatures and Salmonella infection, and a variable influence of changes in precipitation and humidity in Australia are determined at a level of detail previously unexplored. These relationships are demonstrated to vary across the climate regions of Australia with a 16% to 77% increase in the rate of Salmonella infection estimated for an increase in the average temperature from 15{u00B0}C to 20 {u00B0}C. The most positive influence of increasing temperatures on Salmonella infection is modelled in the tropical, warm humid regions of northern Australia. There is also variation in the relationship between infection and weather evident in the analysis of specific serovars (Salmonella Typhimurium in northern Australia and Salmonella Mississippi in Tasmania). These results suggest both regional variation and serovar specific variation in the transmission pathways of Salmonella susceptible to the influence of weather. These estimations present a baseline against which to estimate the success of future public health interventions, but they are susceptible to the ability and willingness of global populations to curtail future greenhouse gas emissions to levels estimated to produce only a 1 {u00B0}C to 2 {u00B0}C increase in global temperatures. The predictive ability of these regional and serovar-specific models of infection are validated using weather and notification data from 2005 2007 and then the modelled relationship between infection and weather is extrapolated to estimate the future incidence of Salmonella infection under a future (moderate) climate change scenario. Expected changes in temperature, relative humidity and population distribution in Australia are used to project a 1.5% increase in the incidence of Salmonella infection across all Australia by 2020, and a 2.8% increase in incidence by 2030. These projections correspond to an additional 9,400 cases of Salmonella infection in the community by 2020 and an additional 16,400 cases by 2030, with the largest proportional increase in disease estimated for the tropical humid northern regions of Australia.
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30

Clark, Anthony. "Simplified models for analysing the risk of climate change on Australia's sheep pastoral zone." Phd thesis, 2008. http://hdl.handle.net/1885/150159.

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31

Pearse, Guy Dugald. "The business response to climate change : case studies of Australian interest groups." Phd thesis, 2005. http://hdl.handle.net/1885/109792.

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This research project is predominantly aimed at improving our understanding of interest group behaviour. Assessments about 'group interest' and decisions about group engagement in the Australian greenhouse policy network provide a useful opportunity to pursue this research aim. As an empirical contribution to the study of interest groups and policy networks, this research is atypical in a few ways. First, while most of the literature concentrates on the role of interest groups and policy networks in explaining policy outcomes, this study focuses on understanding group behaviour. Second, while the literature concerns itself heavily with group-government relationships, the focus here is on group decision-making about network engagementrelationships with government are addressed only to the extent that they impact on these decisions. Third, while most interest group research assumes that groups know and pursue their interests, or that behaviour reveals group preferences, this research does neither. Instead there is a strong emphasis on what forces shape and change perceptions of group interest and no assumption that groups necessarily pursue those perceived interests. These differences necessarily mean that this work does not deal heavily with some of the main preoccupations in the literature-like why groups mobilise and whether they are good for society. Instead, light is shone on aspects of interest groups and policy networks which are acknowledged as important but receive relatively little attention. Alongside the primary objective--to make the empirical contribution to the literature-the aim here is also to contribute to a greater understanding of the history of greenhouse policy development in Australia. This is seen as being valuable in its own right and it addresses widespread curiosity about why business groups with an apparent interest in climate change policy have responded so differently in the Australian context The result is seven case studies which examine the greenhouse responses of a diverse range of business interest groups that have been active in, or judged relevant to the Australian greenhouse policy network. The case studies rely heavily on analysis of interviews conducted with 56 people drawn both from the case groups and from a broad cross-section of other important players in the greenhouse policy network. As a study of the wider policy network, this work is arguably unprecedented in scope. Those interviewed include party leaders, cabinet ministers, advisors and departmental secretaries spanning the Hawke, Keating and Howard federal governments. Past and present leaders of industry associations, think tanks, environmental organisations, along with academics, and journalists were also interviewed with all sides of the debate represented. The results presented here aim to make an commensurate contribution to our knowledge of both interest group behaviour and greenhouse policy development in Australia.
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32

Douglas, Steven Murray. "Is 'green' religion the solution to the ecological crisis? A case study of mainstream religion in Australia." Phd thesis, 2008. http://hdl.handle.net/1885/49314.

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A significant and growing number of authors and commentators have proposed that ecologically enlightened (‘greened’) religion is the solution or at least a major part of the solution to the global ecological crisis. These include Birch, 1965 p90; ... . Proponents offer a variety of reasons for this view, including that the majority of the world’s and many nations’ people identify themselves as religious, and that there is a large amount of land and infrastructure controlled by religious organisations worldwide. However, the most important reason is that ‘religion’ is said to have one or more exceptional qualities that can drive and sustain dramatic personal and societal change. The underlying or sometimes overt suggestion is that as the ecological crisis is ultimately a moral crisis, religion is best placed to address the problem at its root. ¶ ... ¶ This thesis tests the proposition that religion is the solution to the ecological crisis. It does this using a case study of mainstream religion in Australia, represented by the Catholic, Anglican, and Uniting Churches. The Churches’ ecological policies and practices are analysed to determine the extent to which these denominations are fulfilling, or might be able to fulfil, the proposition. The primary research method is an Internet-based search for policy and praxis material. The methodology is Critical Human Ecology. ¶ ...
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Foden, Wendy Bernardina. "Assessing species' vulnerability to climate change." Thesis, 2015. http://hdl.handle.net/10539/17635.

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A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 2014.
Climate change (CC) is expected to have profound impacts on biodiversity, but predicting these remains a major scientific challenge. Current approaches to quantifying such impacts focus largely on measuring exposure to CC, ignoring the biological traits that may significantly increase or reduce species’ vulnerability. In addition, their input requirements restrict use to wide-spread and better-studied species, creating taxonomic and geographic biases in global CC vulnerability estimates. To address this, I developed a framework which draws on both biological traits and exposure modelling to assess three dimensions of CC, namely exposure, sensitivity and adaptive capacity. In the first fully-representative study of entire taxonomic groups, my collaborators and I applied this framework to each of the world’s birds, amphibians and corals (16,857 species). Results identify the Amazon as an area of high concentration of CC vulnerable birds and amphibians, and the central Indo-west Pacific (Coral Triangle) for corals. Comparisons with species’ IUCN Red List threat statuses reveal species and regions both of new and greatest overall priority for conservation globally.
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Reddy, Melissa. "Tourism and climate change risks : opportunities and constraints in South Africa." Thesis, 2012. http://hdl.handle.net/10539/11392.

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M.Sc., Faculty of Science, University of the Witwatersrand, 2011
Global climate change, often referred to as „global warming‟ is possibly one of the most serious environmental challenges facing the world this century (DEAT, 2004; IPCC, 2007). There have been several studies (e.g. Viner and Agnew, 1999; Higham and Hall, 2005; IPCC, 2007; Midgley et al., 2008) on the potential impacts of climate change on the tourism sector and the likely effects are shown to be extremely wide ranging and may have far-reaching consequences for the tourism sector in many regions and areas of the world. From a review of the literature it was evident that there was limited literature on the response to climate change by the tourism industry in terms of mitigation, adaptation and long- term strategic planning to manage future anticipated climate change impacts. Given this background, this research explores the tourism industry with regard to game and nature reserves in South Africa and probes the perceptions of climate change amongst park managers and tourism operators to understand their awareness regarding the projected impacts of climate change. Mitigation and adaptation strategies that were in place or being developed in the management of the game and nature reserves are identified and examined. Challenges that were experienced by the tourism managers/operators in promoting effective mitigation and adaptation strategies in the nature based tourism sector in South Africa are highlighted and discussed and recommendations are provided. Purposeful sampling was employed in the research and the stakeholders were identified according to their important roles in the South African Tourism Industry with regard to game and nature reserve management. These included the Department of Environmental Affairs and Tourism, South African National Parks (SANParks), South African National Botanical Institute (SANBI) and the Provincial Park Managers which comprises the Eastern Cape Parks, Gauteng Department of Agriculture and Rural Development (GDARD), Ezemvelo KZN Wildlife, Limpopo Tourism and Parks Board, Mpumalanga Parks Board, North West Parks and Tourism Board and Cape Nature. The research data was collected using open-ended questionnaires and interviews with the stakeholders. Results of this research showed that there was a basic understanding of climate change and its associated impacts on tourism consistent with what is being established in the scientific literature. Despite this awareness among relevant stakeholders, there was however not much formal long-term strategic planning or mitigation and adaptation plans in place to manage or „manage‟ the suggested projected impacts of climate change on the tourism industry. The research results also highlighted many challenges experienced by the nature- based tourism sector.
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Aljareo, Abdulhakim. "How is climate change incorporated into environmental impact assessments (EIAs) in South Africa?" Thesis, 2015. http://hdl.handle.net/10539/16829.

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A research report submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science by Coursework and Research Report. Johannesburg 2014.
Climate change is an issue of global significance resulting in trans-boundary environmental and socio-economic impacts. South Africa is involved in the international efforts to address climate change, has accepted the findings of the Intergovernmental Panel on Climate Change (IPCC) Assessment Report and developed a National Climate Change Response Policy, listing the impacts of climate change on the sustainable development in South Africa. The main causes of climate change are Greenhouse Gases (GHGs), which have been emitted from different development activities over temporal and spatial scales. In order to reduce the emissions of GHGs and protect proposed development projects from climate change impacts, climate change mitigation and adaptation measures should be incorporated into Environmental Impact Assessment (EIA). This research aimed to describe climate change incorporation into the EIA legal regime and practice in South Africa, based on climate change impacts on sustainable development and the role of EIA in considering climate change. The methodology involved reviewing EIA regulations and related legislation, EIA case studies from Gauteng province conducted between 2010 and 2013, key informant interviews with Environmental Assessment Practitioners (EAPs), and discussion on the linkedin group of the International Association for Impact Assessment of South Africa (IAIAsa). The study concluded that climate change is not explicitly incorporated into the EIA regime, but it is implied in the EIA regulations and related legislation. Largely as a result of the lack of climate change incorporation in the EIA legal regime, climate change is not adequately considered in the EIA practice. In order to support the contribution of EIA to sustainable development in South Africa, It is recommended that climate change should be incorporated into EIA regulations in the next amendment of NEMA. This can be done through including listed activities that require climate change incorporation into the EIA based on type of an activity and/or specific receiving environments. It is also suggested that EIA guidelines for climate change consideration be developed. Further recommendations include supporting the role that Strategic Environmental Assessment (SEA) and Environmental Management Framework (EMF) play, in conjunction with the EIA, in considering climate change; increasing the availability of accurate, local climate change data and modelling technology; developing staff capacity and awareness about climate change, and building EAP’s ability to incorporate climate change in the EIA through the support of government related authorities and associations such as IAIAsa and EAPSA. Key words: climate change, EIA, mitigation, adaptation, EIA legal regime, EIA practice.
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36

Massy, Charles John. "Transforming the Earth : a study in the change of agricultural mindscapes." Phd thesis, 2013. http://hdl.handle.net/1885/115203.

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This thesis links three interconnected stories relevant to humanity's future: 1. Exposition of a different form of agriculture; 2. An exploration of the nature of transformational change; and 3. Revelation of a new way of regenerating Earth via the melding of new and old knowledge. A confluence of multiple and interconnected crises threatens the self-regulating capacity of the planet and thus the future of humanity. Food security is one of these crises, placing agriculture front and centre in addressing this challenge. Agriculture is problematic because practices integral to industrial agriculture are known to inhibit the continuing provision of essential ecosystem services (including adequate healthy food and water). This thesis explores both the reasons why traditional agricultural practices fail, and the rise of a change-oriented new-organic agriculture that is taking their place. The study population comprised seventy-nine innovative Australian farmers who have successfully developed ruminant-based, agro-ecological practices that cover broad areas of land. The challenge was to find how and why this group of agriculturalists undertook transformational changes in their practices. Preliminary investigation suggested farmers' belief-systems were central to the answer. Multi-method research based on critical, open trans-disciplinary inquiry was used to analyse interviews, documents, and historical material. The study focused on the interconnection of language and metaphor, the role of discourses, and the power-knowledge nexus in the formation of personal psychological constructs. A study of Western thought since 1500 revealed that an earlier organic view of the cosmos was replaced by science- and technology-based mercantile capitalism which led to an embedding of the mechanical metaphor in Western thinking. This metaphor regards nature as dead and passive, and something to be reconstructed, dominated, and controlled: as opposed to the ancient organic metaphor which saw the cosmos as a living female earth, to be nurtured and sustained. Analysis of this metaphor shift revealed that major personal psychological constructs appear to drive society and land-use practices. Socially-embedded constructs have regularly been found resistant to change. Mechanical constructs, deeply entrenched and unrecognised by most farmers, are behind harmful land-use practices in Australia. By contrast, analysis of the evolving regenerative agricultural discourse revealed startling differences in language and metaphor. Transformative agriculturalists have overthrown the mechanical metaphor and thinking for what is termed the new-organic. This comprises a bio-philic, earth regenerating and transformative frame of 'mind' with associated practices that combines new agro-ecological knowledge and rediscovered ancient knowledge (the pre-mechanical organic). This fundamental transformation involved farmers changing their personal construct systems. Transformative agriculturalists had reflected on their situation and undertaken social learning within communities of practice. Here they exhibited different ways of learning, thinking and feeling, exemplified in their use of the trans-disciplinary imagination: the bringing together of multiple knowledge in a synergy of new ideas. Given the urgency of the sustainability challenge and the promise offered by a shift to sustainable-regenerative land-use, these findings have major implications for agricultural practice and extension services. While transformative change cannot be forced, nevertheless the ground can be prepared for change.
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37

Maurer, Joshua. "Mountain Glacier Change Across Regions and Timescales." Thesis, 2020. https://doi.org/10.7916/d8-j15x-jb13.

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Mountain glaciers have influenced the surface of our planet throughout geologic time. These large reservoirs of water ice sculpt alpine landscapes, regulate downstream river flows, perturb climate-tectonic feedbacks, contribute to sea level change, and guide human migration and settlement patterns. Glaciers are especially relevant in modern times, acting as buffers which supply seasonal meltwater to densely populated downstream communities and support economies via hydropower generation. Anthropogenic warming is accelerating ice loss in most glacierized regions of the world. This has sparked concerns regarding water resources and natural hazards, and placed glaciers at the forefront of climate research. Here we provide new observations of glacier change in key mountain regions to quantify rates of ice loss, better understand climate drivers, and help establish a more unified framework for studying glacier change across timescales. In Chapter 1 we use seismic observations, numerical modeling, and geomorphic analysis to investigate a destructive glacial lake outburst flood (GLOF) which occurred in Bhutan. GLOFs are a substantial hazard for downstream communities in many vulnerable regions. Yet key aspects of GLOF dynamics remain difficult to quantify, as in situ measurements are scarce due to the unpredictability and remote source locations of these events. Here we apply cross-correlation based seismic analyses to track the evolution of the GLOF remotely (~100 km from the source region), use the seismic observations along with eyewitness reports and a downstream gauge station to constrain a numerical flood model, then assess geomorphic change and current state of the unstable lakes via satellite imagery. Coherent seismic energy is evident from 1 to 5 Hz beginning approximately 5 hours before the flood impacted Punakha village, which originated at the source lake and advanced down the valley during the GLOF duration. Our analysis highlights potential benefits of using real-time seismic monitoring to improve early warning systems. The next two chapters in this work focus on quantifying multi-decadal glacier ice loss in the Himalayas. Himalayan glaciers supply meltwater to densely populated catchments in South Asia, and regional observations of glacier change are needed to understand climate drivers and assess impacts on glacier-fed rivers. Here we utilize a set of digital elevation models derived from cold war–era spy satellite film and modern stereo satellite imagery to evaluate glacier responses to changing climate over the last four decades. In Chapter 2 we focus on the eastern Himalayas, centered on the Bhutan–China border. The wide range of glacier types allows for the first mass balance comparison between clean, debris, and lake-terminating (calving) glaciers in the area. Measured glaciers show significant ice loss, with statistically similar mass balance values for both clean-ice and debris-covered glacier groups. Chapter 3 extends the same methodology to quantify glacier change across the entire Himalayan range during 1975–2000 and 2000–2016. We observe consistent ice loss along the entire 2000-km transect for both intervals and find a doubling of the average loss rate during 2000–2016 compared to 1975–2000. The similar magnitude and acceleration of ice loss across the Himalayas suggests a regionally coherent climate forcing, consistent with atmospheric warming and associated energy fluxes as the dominant drivers of glacier change. Chapter 4 investigates millennial-scale glacier changes during the Late Glacial period (15-11 ka). Here we present a high-precision beryllium-10 chronology and geomorphic map from a sequence of well-preserved moraines in the Nendaz valley of the western European Alps, with the goal to shed light on the timing and magnitude of glacier responses during an interval of dramatic natural climate variability. Our chronology brackets a coherent glacier recession through the Younger Dryas stadial into the early Holocene, similar to glacier records from the southern hemisphere and a new chronology from Arctic Norway. These results highlight a general agreement between mountain glacier changes and atmospheric greenhouse gas records during the Late Glacial. In Chapter 5 we use a numerical glacier model to simulate glacier change across a typical alpine region in the European Alps. Model results suggest that shorter observational timespans focused on modern periods (when glaciers are far from equilibrium and undergoing rapid change) exhibit greater spatial variability of mean annual ice thickness changes, compared to intervals which extend further back in time (to include decades when climate was more stable). The model agrees with multi-decadal satellite observations of glacier change, and clarifies the positive correlation between glacier disequilibrium and spatial variability of glacier mass balance. This relationship should be taken into account in regional glacier studies, particularly when analyzing recent spatial patterns of ice loss. Advances made in this work are of practical value for societies vulnerable to glacier change. This includes potential improvements to GLOF early warning systems via seismic monitoring, better constraints on glacier-sourced water scenarios in South Asia, strengthened understanding of long-term glacier responses to baseline natural climate variability, and a clarified relationship between glacier disequilibrium and spatial variability of ice loss. When placed within a global context, our observations highlight the correlation between regional mountain glacier change and greenhouse gas forcing through time.
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38

Battle, Angela. "Carbon encounters: cognizing the calculus of climate change." Thesis, 2016. http://hdl.handle.net/10539/22043.

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Thesis (M.A. (Anthropology))--University of the Witwatersrand, Faculty of Humanities, School of Social Sciences, 2016.
Governments, like South Africa, are implementing carbon tax and carbon credit programs to incent businesses to lower their GHG emissions. That is not to say there are not loftier motivations in the wider world, but in this study we have mostly encountered Homo Economicus. Our observations have noted that people either want to make money or save money by way of participating in the green economy. Earth’s threatening posture is yet to change our “habitus”. The changes so far are from economic coercion and not ecological conviction. And it’s primarily prompted through the scientific community, who are understandably, the first responders to a threat with slow and mostly imperceptible reverberations. The responses of those trying to make money, involve participating in the process of carbon commodification. CERs are a new form of currency available to those able to deploy labor and capital in efforts to capture carbon molecules and prevent their creation. The looming South African carbon tax has spurred organizations to lower their emissions so as not to effect bottom-line profitability. [Taken from the conclusion. No abstract provided]
MT2017
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39

Zhang, Ying. "The relationship between climate variation and selected infectious diseases: Australian and Chinese perspectives." 2007. http://hdl.handle.net/2440/40404.

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Background Climate variation has affected diverse physical and biological systems worldwide. Population health is one of the most important impacts of climate variation. Although the impact of climate variation on infectious diseases has been of significant concern recently, the relationship between climate variation and infectious diseases, including vector-borne diseases and enteric infections, needs greater clarification. Australia is grappling with developing politically acceptable responses to global warming. In China, few studies have been conducted to examine the effect of climate variation, including global warming, on population health. As residents of developing countries may suffer more from climate change compared with people living in more developed countries, this thesis has significance for both countries. Aims This study aims to contribute to a better understanding of the impact of climate variation on population health, and to provide scientific evidence for policy makers, researchers, public health practitioners and local communities in the development of public health strategies at an early stage, in order to prevent or reduce future risks associated with ongoing climate change. The objectives of this study include: (1) to quantify the association between climate variation and selected vectorborne diseases and enteric infections in different climatic regions in Australia and China; (2) to project the future burden of selected vector-borne diseases and enteric infections based on climate change scenarios in different climatic regions in Australia and China. Methods This ecological study has two components. The first uses time-series analyses to quantify the relationship between meteorological variables and infectious diseases, whereas the second projects the burden of selected infectious diseases using future climate and population scenarios. Temperate and subtropical climatic zones in both Australia and China were selected as the primary study areas, and a study of an Australian tropical region was also conducted. Study of Australia’s temperate zones was conducted in Adelaide, South Australia, as well as the Murray River region in that State. The study of China’s temperate zone was carried out in Jinan, Shandong Province. Subtropical studies were conducted in Baoan, Guangdong Province, China, and Brisbane in Queensland, whilst research for the tropics centred on Townsville, also in Queensland, Australia. The selected infectious diseases - one vector-borne disease and one enteric infection in each country - are Ross River Virus (RRV) infection and salmonellosis in Australia, and malaria and bacillary dysentery in China. Study periods vary from eight to sixteen years (depending upon the availability of data). Climate data, infectious disease surveillance data and demographic data were collected from local authorities. Data analyses conducted in the ecological studies include Spearman correlation analysis, time-series adjusted Poisson regression and the Seasonal Autoregressive Integrated Moving Average (SARIMA) model with consideration of lag effects, seasonality, long-term trends, and autocorrelation, on a weekly or monthly basis depending on data availability, and Hockey Sticky model to detect potential threshold temperatures. In the burden of disease component, analyses include the calculation of an indicator of the burden of disease - Years Lost due to Disabilities (YLDs) - and use scenario-based models to project YLDs for the selected diseases in 2030 and 2050 in Australia and 2020 and 2050 in China respectively. The projections consider both different scenarios of projected temperature and future population change. Results Relationship between climate variation and selected infectious diseases In all the study regions in Australia, maximum temperature, minimum temperature, rainfall and humidity are all significantly related to the number of RRV infections, with lag effects varying from 0 to 3 months. Additionally, high tides in the two seaside regions with tropical (Townsville) or subtropical (Brisbane) climates, and river flow in the temperate region (Murray River region), are related to the number of cases without any lag effects. A potential 1°C increase in maximum or minimum temperature may cause 4%~23% extra cases of RRV infection in the temperate region, 5~8% in the subtropical region, and 6%~15% in the tropical region. Maximum temperature, minimum temperature, humidity and air pressure are significantly related to malaria cases in the temperate city Jinan and subtropical city Baoan in China, with a lag effect range of 0 to 1 month. An association between rainfall and malaria cases was not detected in either region. A potential 1°C increase in maximum or minimum temperature may lead to 4%~15% extra malaria cases in the temperate region, and 12%-18% in the tropical region in China. Maximum temperature, minimum temperature, rainfall and humidity are all significantly related to the number of salmonellosis cases in the three study cities in Australia, with lag effects varying from 0 to 1 month. A potential 1°C increase in maximum or minimum temperature may cause 6%~19% extra salmonellosis cases in the temperate region (Adelaide), 5%~10% in the subtropical region (Brisbane), and 4%~15% in the tropical region (Townsville). The thresholds for the effects of maximum and minimum temperatures are 20ºC and 12ºC respectively in Adelaide. No threshold temperatures are detected in Townsville and Brisbane. Maximum temperature, minimum temperature, humidity, air pressure and rainfall are significantly related to bacillary dysentery cases in the temperate city Jinan and subtropical city Baoan in China, with the lag effect range of 0 to 2 months. A potential 1°C increase in maximum or minimum temperature may cause 7%~15% extra bacillary dysentery cases in the temperate region and 10% ~ 19% in the subtropical region in China. The thresholds for the effects of maximum and minimum temperatures on bacillary dysentery are 17ºC and 8ºC respectively in Jinan. No threshold temperatures are detected in Baoan. Projection of YLDs from target diseases In Australia, considering both climatic and population scenarios, if other factors remain constant, compared with the YLDs observed in 2000, the YLDs for salmonellosis might increase by up to 48% by 2030, and nearly double by 2050 in South Australia, while the YLDs might double by 2030 and increase by up to 143% by 2050 in Brisbane, Queensland. The YLDs for RRV infection might increase by up to 66% by 2030, and nearly double by 2050 in South Australia. They might increase by up to 61% by 2030 and double by 2050 in Brisbane, Queensland. In China, considering both climatic and population scenarios, if other factors remain constant, compared with the YLDs observed in 2000, the YLDs for bacillary dysentery might double by 2020 and triple by 2050 in both Jinan and Baoan. The YLDs for malaria might increase by up to 108% by 2020 and nearly triple by 2050 in Jinan, the temperate city, and increase by up to 144% by 2020 and nearly triple by 2050 in Baoan, the subtropical city. Conclusions 1. Both maximum and minimum temperatures are important in the transmission of vector-borne diseases in various climatic regions in both Australia and China. River flow or high tides may also play an important role in the transmission of such diseases. 2. Both maximum and minimum temperatures play an important role in the transmission of enteric infections in various climatic regions in both Australia and China, with a threshold temperature detected in the temperate regions but not in subtropical and tropical regions. 3. The effects of rainfall and relative humidity on selected infectious diseases vary in different study areas in Australia and China. 4. The burden of temperature-related infectious diseases may greatly increase in the future if there is no effective preventive intervention. Public health implications 1. Implication for health practice • Public health practitioners, together with relevant government organisations, should monitor trends in infectious diseases, as well as other relevant indexes, such as vectors, pathogens, and water and food safety. They should advise policy makers of the potential risks associated with climate change and develop public health strategies to prevent and reduce the impact of infectious disease associated with such change. • Doctors and other clinical practitioners should be prepared and supported in the provision of health care for any expected extra cases associated with climate variation and should play an important role in relevant health education on climate change. • Community participation is of significance to adapt to and mitigate the risk of climate change on population health. Community involvement helps to deliver programmes which more accurately target local needs. Therefore, community should be involved in the partnerships of climate change as early as possible. • Relevant education programs on the potential health impact of climate change should be conducted by government at all levels for different stakeholders, including industries, governments, communities, clinicians and researchers. • Advocacy for adapting to and mitigating climate change should be a longstanding public health activity. 2. Implication for researchers • The main task for researchers is to identify the independent contribution made by key climatic variables and whether there are exposure thresholds for infectious disease transmission. Further studies should include various infectious diseases in different climatic regions. • Developing countries and rural regions are more vulnerable to the impact of climate change so more research should be conducted for people living in those regions. • Studies using summary measures that combine prevalence of disease, quality of life and life expectancy, such as Disability Adjusted Life Years (DALYs), to assess the burden of disease due to climate change is necessary to assist in decision making. • More research should be conducted on the assessment of adaptive strategies and mitigation to future climate change. 3. Implication for policies • Public and preventive health strategies that consider local climatic conditions and their impact on vector and food borne diseases are important in reducing such impact due to climate change in the future. • The extra health burden that may be caused by future climate change may have a great impact on the currently overloaded public health system in both developed and developing countries. Long-term planning about health resource allocation, infrastructure establishment, and relevant response mechanisms should be developed at relevant government levels. • Effective prevention and intervention strategies will be possible only if the efforts of relevant sectors, including governments, communities, industries, research institutions, clinical professionals and individuals, have coordinated responses. • International and regional collaborations are necessary to address this global issue. In addition, strategies of an international dimension should be translated into regional and local actions. This is extremely important to developing countries such as China and India. • Sustainable development policies with consideration given to reducing green house gases and environmental degradation need immediate action which will benefit future generations. Health priorities should include the prevention of climate change.
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Thesis(Ph.D.)-- School of Population Health and Clinical Practice, 2007
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40

Taylor, Maria Johanna. "Loading the dice : perspectives on climate change communication in Australia 1987-2001." Phd thesis, 2012. http://hdl.handle.net/1885/155181.

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For almost 40 years I had the naive view that if we simply obtain more physical understanding of the issue, we could provide "the" answers and responses would be rational. I now see that there is absolutely no guarantee of this. It is ourselves we do not understand. Atmospheric scientist Graeme Pearman, personal communication, February 17, 2009 The broad theme of this "science and society" study is the communication of anthropogenic climate change over the period 1987-2001 in Australia. Adding a novel science communication analysis to existing studies of policy and media presented the opportunity to broaden understanding of how this society engaged with a unique environmental issue. Relying on the public documentary record, supported by interviews, the investigation found and analysed dramatic changes to communication in correlation with changing public policy and evidence of public knowledge during the course of the study period. Against expectation, the changes went from a high level of early good understanding of climate change risk and response to a high level of confusion and conflict by the end of the study period, while the basic science messages remained consistent throughout. A framing lens was developed to study public language in the documentary record. Major social and cultural influences on the framing were identified and analysed, combining insights from other research fields with original evidence from the thesis research. This study thereby contributes some new insights for communication of environmental science, specifically climate change. It also offers a novel case study in Australian science history.
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Carroll, Leonardo Zi{u00EA}n. "Australian water management and population change." Phd thesis, 2010. http://hdl.handle.net/1885/150596.

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Australia's population is growing rapidly, and is projected to grow by 65 percent to reach over 35 million people by the middle of the century. This population growth could exacerbate stresses on Australia's already stretched water resources and environmental assets, particularly if climate change projections prove correct. At the same time, there is a possibility that water shortages and declining water quality could lead to population decline in some parts of the country. Both of these scenarios will present water managers with significant challenges. With this in mind, this thesis addresses the question: How does Australia's water management framework deal with population change. This topic has not previously been considered in a coherent fashion. While there is an extensive literature on the relationship between population change and the environment more generally, and there has been some discussion of population change and water in Australia, there is a scarcity of literature on water policy and how it deals with population change. The thesis investigates the question from two angles. Firstly, it investigates the institutional arrangements, organisations and policies which influence how population change is considered in the context of water management. Secondly, it investigates what demographic data are available and relevant to water managers, and how these data are and can be used in the context of these institutional arrangements, organisations and policies. Reflecting its focus on policies, legislation, institutions and organisations, the thesis is primarily an exploration of public policy. To a more limited extent, the thesis also draws upon a second discipline, demography. More specifically, the thesis: 1. Develops a conceptual model to help explain the linkages between water management and population in Australia. This is an important contribution to research methodology in the area of population and water management. 2. Explores how and where demographic and population issues are relevant to Australian water managers. The issue of population change, and how water managers deal with it, needs to be considered very differently in different rural and urban areas. These areas, and the ways in which population matters in them, can be identified through analyses of water policy and socio-economic data. 3. Considers in detail the water reforms flowing from the National Water Initiative (NWI) and subsequent Water Act 2007 (Cth) and 2008 Agreement on Murray-Darling Basin Reform, and how population change is dealt with in the context of these reforms. While the NWI provides a range of mechanisms for managing population change, in some cases the effectiveness of these mechanisms remains compromised while they are still being rolled out. Furthermore, the focus of the NWT is on reallocating water resources in rural areas; increases in urban water consumption, associated with urban population growth, will not necessarily be constrained by water allocation planning processes. 4. Considers how population change is dealt with in the context of broader approaches to water management, such as land use planning and urban water planning. In doing so, it draws upon an extensive study of the policy literature, and qualitative discussions with informants involved in water reform at national, State and regional levels in the Commonwealth, New South Wales, and Queensland. 5. Describes and catalogues the myriad of socio-economic data sources available to water managers. It finds that these sources are generally reliable and well-documented, and that there is an emerging body of work aimed at integrating sources of socio-economic data so that they can be more readily used by water managers. 6. Through case studies, assesses in detail how socio-economic data have been used by water allocation planners and urban water planners. To date, a pragmatic approach appears to have been taken, whereby socio-economic data are used only to the extent that is necessary. Other factors (such as land use planning) are equally important determinants of population change and how it should be managed. 7. Considers the relationship between Australian water policy and structural adjustment, and hence, how water policy may lead to population change. Overall, the thesis makes an important contribution to research in the area of water management and population change. It brings together two previously largely separate domains of intellectual inquiry. By identifying and describing many of the ways in which Australian water managers are dealing with population change, it helps build understanding of some of the strengths and shortcomings to how Australia manages its water resources, and areas for improvement. Through its methodology and findings, it also lays a foundation for future work in this area.
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Ransan-Cooper, Hedda Marie Celia. "It's hard but it's for my family : mobility and environmental change in the rural Philippines." Phd thesis, 2014. http://hdl.handle.net/1885/173573.

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Environmental migration is an idea that has attracted significant attention from policy-makers, activists, the media and academic researchers since the 1970s. Since its inception, however, questions have remained over how best to explore environment-mobility dynamics. Much progress has been made in this area, particularly in unpacking the political ecological context in which mobility patterns emerge, yet researchers are still faced with limited conceptual frameworks from which to develop context-specific explanations of the influence of environmental change on mobility patterns. Existing conceptualizations tend to be biased towards structural explanations. This thesis seeks to improve conceptual clarity by applying new theoretical approaches to understanding the influence of environmental change on mobility. The study draws on debates within general migration theory as a springboard for exploring the theoretical challenges associated with explaining mobility. These theoretical discussions form the basis for identifying the influence of environmental changes on existing mobility patterns. The methodological approach in this study employs social practices theory to examine how chains of action are the result of both individual actors and the effect of social structures organized around shared practical understandings. The study used a case study design and employed qualitative methods such as interviews, group discussions, participant observation and document analysis to analyse the linkages between multi-scale contexts of action. The fieldwork was conducted in three rural villages in Albay province, the Philippines. Albay was selected because it experiences a range of different environmental shocks and stressors and is a province with net out-migration, characterized by seasonal and circular mobility patterns. While mobility could certainly be conceptualised as a 'rational' response, for research participants, working for periods of time in urban areas also represented a familiar practice-part of the rhythm of daily life. Mobility for Albayanos was viewed as an opportunity to transform oneself and improve livelihood security, despite the often disappointing experiences of working elsewhere. Decisions associated with mobility were suffused with a range of emotions. The decision to move was not so much a process of quantifying what was better or worse (to stay or go), but rather what fitted with the values, emotions and ideas of self in particulars moment and over the experience of mobility. These findings challenge the dominant framing of environmental migrants as rational actors responding to particular push and pull factors. The study concludes that practice-based approaches are a valuable way to explore the numerous dimensions of the mobility experience. It draws on this approach to bridge the structure-agency divide evident in many contemporary conceptualizations of environmental migration. One of the distinguishing features of a practice theory approach is the consideration not only of reflexivity and conscious thought for understanding agency, but also shared and routinized dimensions. This approach shifts the focus away from how individuals rationalize their migration decision, to how various practices solidify and routinize practices relating to mobility. The natural environment forms part of this context, but its influence cannot be understood without explicit and critical consideration of interconnected practices involved in mobility patterns.
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43

Thornton, Fanny. "Climate change, human displacement, international law and justice." Phd thesis, 2014. http://hdl.handle.net/1885/156308.

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The thesis investigates how a justice framework is relevant to analysis of the role of international law in relation to climate change-induced human displacement. In particular, through the application of a justice framework, questions of responsibility will be explored. It will be argued that such a lens alters conceptualisations of the role international law may play, or should play, in relation to the phenomenon. Specific justice theories selected are corrective and distributive justice, which will be explored in a substantial theoretical chapter forming the analytical backbone of the thesis. The theories then inform the more contextualised analysis about the role of international law in relation to climate change-induced displacement. Corrective justice permits analysis of whether climate change-induced displacement, or the livelihood impacts that precede it, could be conceived as (wrongful) damage or harm which is compensable under international law, either through fault-based regimes or no-fault regimes (i.e. insurance). Distributive justice permits analysis of whether climate change-induced displacement could potentially be framed as an undeserved and disproportionate burden which stipulates international action to rebalance it, through distributing either costs or burdens. The thesis hopes to contribute to the growing scholarship concerning international law and climate change-induced displacement by investigating the bounds of the law where the phenomenon is viewed as one of responsibility and of justice.
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Griffitts, Thomas A. "Global climate change : the human condition, the market and ecorealism." Thesis, 2004. http://hdl.handle.net/10125/11819.

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McCarthy, Megan Emma. "Environmental impact assessment and organisational change in Transport SA & ETSA Corporation / Megan Emma McCarthy." 2000. http://hdl.handle.net/2440/19898.

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Includes bibliographical references (leaves 379-409)
2 v. : ill. ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Develops a framework for evaluating environmental impact assessment (EIA) and organisational change, and examines the influence of the EIA system on two government organisations within South Australia, Transport SA and ETSA . Finally analyses patterns of organisational change process in South Australia in comparision with experience in the United States.
Thesis (Ph.D.(Arts))--Adelaide University, Dept. of Geographical and Environmental Studies, 2001
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46

McCarthy, Megan Emma. "Environmental impact assessment and organisational change in Transport SA & ETSA Corporation / Megan Emma McCarthy." Thesis, 2000. http://hdl.handle.net/2440/19898.

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Includes bibliographical references (leaves 379-409)
2 v. : ill. ; 30 cm.
Develops a framework for evaluating environmental impact assessment (EIA) and organisational change, and examines the influence of the EIA system on two government organisations within South Australia, Transport SA and ETSA . Finally analyses patterns of organisational change process in South Australia in comparision with experience in the United States.
Thesis (Ph.D.(Arts))--Adelaide University, Dept. of Geographical and Environmental Studies, 2001
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47

Punchee, Vijay Anand. "The effect of climate change on Durban Consumers' buying behaviour." Thesis, 2011. http://hdl.handle.net/10413/9652.

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The green market is now one of the biggest markets in the world and green marketing is one of the major trends in modern business. This is a chance for businesses to take advantage of this opportunity by providing environmental solutions whilst at the same time contributing towards reducing the carbon footprint. To effectively achieve this, green manufacturers and marketers need to understand the perceptions, attitudes and behaviours of consumers towards green products and the factors that encourage and discourage their green purchases. Hence this study attempts to understand Durban’s consumers in this regard to enable local businesses to develop strategies around green product design, development, marketing and sales. The research objectives and questions were answered by sampling 450 consumers in Durban. A convenience sampling design was used as an appropriate sample frame could not be identified. This imposed a limitation on the study in that the findings cannot be generalized to the total population. The study found that 96% of respondents believed that climate change existed and 87% believed that it was having a major impact on the planet. Nevertheless, environmental issues did not weigh heavily in the buying decisions of the respondents. Instead quality and cost were the main factors. However, the study identified a significant market for green cars whilst a significant number of respondents were willing to pay a premium for green products. Furthermore, the respondents indicated that eco-labeling of products would encourage them to buy more green products. Moreover, the study found that green marketers should target the White female segment of the market as they were most conscious of environmental issues. It was also recommended that the pricing of green products needs to be more competitive, green products need to be promoted as the norm and not the exception, and consumers need to be educated to go green. Government, consumers and industry all need to work together to ensure the sustainability of the planet.
Thesis (MBA)-University of KwaZulu-Natal, Westville, 2011.
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48

Son, Ngoc Ho. "Vulnerability and resilience to climate change in the northern mountainous region of Vietnam." Phd thesis, 2013. http://hdl.handle.net/1885/109286.

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Vietnam is one of the most vulnerable countries to climate change in the world. Therefore, adaptation is increasingly seen as both a necessary and urgent response. However, little is known in terms of who are the most vulnerable and how adaptation will take place. This thesis examines vulnerability and resilience to climate variability and change among communities in the northern mountainous region (NMR) of Vietnam which have been identified as among the most vulnerable communities in Vietnam. The conceptual framework of this thesis draws on the linkage between vulnerability, adaptive capacity and resilience through which to gain a better understanding of vulnerability, adaptation and resilience to climate change in Vietnam's NMR. I adopt a participatory approach to vulnerability assessment using community villages as case studies and using drought, flood and cold weather snaps as study events. The case study of the human-natural system is located in the Ba Be district of Bac Kan province in the NMR of Vietnam. Data were collected in the field from July 2009 to February 2010. Primary data in the form of interviews, focus groups and community workshops, and field observations, as well as insights from local and regional decision-makers, resource managers, scientists and secondary data in the form of published and unpublished literature are used to investigate how communities manage and experience climate-related risks. This study found that households and communities in the NMR are vulnerable to multiple stresses. The main socio-econmic determinants of local vulnerability include poverty, inequality, environmental degradation, ethnicity and community. The interaction of climate risks and local vulnerability factors threatens to overwhelm their resilience. Therefore, this thesis argues that adaptation needs to be rooted in both reducing vulnerability and increasing resilience of communities. The central approach is to increase the adaptive capacity of communities to become resilient in the context of change and uncertainty. It will be more fruitful if policy interventions focus on improving adaptive capacity of vulnerable communities rather than providing specific solutions to uncertain future climates. Addressing fundamental livelihood and development problems and strengthening social, economic, and environmental resilience will make it easier for local communities to respond to climatic risks, whether they are droughts, floods or cold snaps. Another key conclusion is that communities that learn to live with change and uncertainty become resilient. The insights emphasize the importance of learning, information exchange, reflection, innovation, and anticipation, all of which are key elements of the adaptation process.
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49

Craparo, Alessandro. "Influence of climate change and variability on Coffea arabica in the East African highlands." Thesis, 2017. http://hdl.handle.net/10539/23558.

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A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy (Agroclimatology) at the University of Witwatersrand, 2017.
Plant development is inherently linked to meteorological variability. The phenology, distribution and production of crops and wild relatives has already altered in response to climate change. Recent years have produced the warmest mean annual global temperatures since 1880, with 2016 setting the highest record thus far. Such profound changes have sparked investigations into the impact of temperature and rainfall on crop development, particularly those with profound economic importance such as coffee (C. arabica). The crop is a fundamental source of income for smallholder farming communities and governments throughout the tropical highlands. However, the impact of climate change on C. arabica has yet to be quantified using empirical data in East Africa, leaving uncertainty in the cultivable future of the crop. Therefore, the objective of this thesis is to investigate the influence of climate change and variability on C. arabica yields and phenology in East Africa. Using a spatio-temporal approach, trends and relationships between coffee performance and meteorological variables were analysed at different scales and time periods ranging from the macroclimatic national scale (49 year), to the meso- and microclimatic farm level (3 year) scale, and finally to the microclimatic canopy and leaf level (hourly) scales. Data from all three climatic continua reveal for the first time that temperatures, and particularly rapidly advancing night time temperatures, are having a substantial negative impact on C. arabica yields. Forecasting models based on these biophysical relationships indicate that by the year 2050, smallholder farmers would on average harvest approximately 50% of the yield they are achieving today. Warming night time temperatures are also responsible for advancing ripening and harvest phenology. As a result, bean filling and development time is reduced, thereby potentially resulting in lower quality coffee. Trends in precipitation do not appear to have any substantial impact on C. arabica yields or harvest phenology, however, it is proposed that rainfall would act synergistically with temperatures to influence plant development and other phenological phases such as flowering. Finally, thermography is introduced as a novel complementary technique to rapidly analyse the suitability of different agroecological systems on coffee physiology at the leaf level. High temporal resolution (hourly) data, illustrate the success of the method in variable meteorological and environmental conditions. The findings contribute to advancing the protocol for use at the canopy and plantation level on coffee, so that appropriate microenvironment designs and adaptation mechanisms be put in place to accommodate climatic change. Avoiding increments in night time temperatures is key to maintaining or improving yields and fruiting development. Farming at higher altitudes and novel agroforestry systems may assist in achieving lower night time temperatures. Importantly, data reveal that careful analysis of various cropping systems, particularly at lower altitudes, is critical for providing suitable microenvironments for the crop.
XL2017
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50

Lowe, Kerry Lynne. "Agrohydrological sensitivity analyses with regard to projected climate change in Southern Africa." Thesis, 1997. http://hdl.handle.net/10413/5607.

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Climate change resulting from the augmented "greenhouse effect" is likely to have significant effects on the terrestrial hydrological system and the social and ecological systems linked to it. Climate change could potentially affect inputs to the agrohydrological system such as rainfall, temperature and potential evaporation; processes within the system such as vegetation dynamics and crop production; and hydrological responses such as runoff, recharge of soil water into the vadose zone and net irrigation demand. This study outlines the use of a daily water budget model, ACRU, and SCENGEN, a climate change scenario generator, to assess potential impacts of global climate change on agricultural production and hydrological responses in southern Africa. This study also considers potential impacts of climate change on plant response which may determine the extent of potential impacts of climate change on agricultural production and hydrological response. Two approaches to climate change impact studies are adopted for use in this study. The first, and more conventional approach considers the impact of a specified climate change scenario, in this case developed with the use of SCENGEN, on the terrestrial hydrological system. The second approach considers the degree of climate change, in this case precipitation change, required to perturb the hydrological system significantly in the various climate regimes found in southern Africa. A comparative analysis of the sensitivity of selected hydrological responses to climate change produced the following results, in ascending order of sensitivity: net irrigation demand < stormflow response < runoff < recharge into the vadose zone. The impacts of a specific climate scenario change on hydrological responses produced unexpected results. A general decrease in mean annual precipitation over southern Africa is predicted for the future with SCENGEN. However, widespread simulated increases in runoff, soil moisture content in the A- and B-horizon and recharge into the vadose zone are obtained. These increases are a product of the CO2 "fertilisation" feedback, which is incorporated as a maximum transpiration suppression routine, in the ACRU model. Net irrigation demand, which is not linked to this routine, is simulated to increase in the future.
Thesis (M.Env.Dev.)-University of Natal, Pietermaritzburg, 1997.
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