Journal articles on the topic 'Coastal ecology – gulf coast (u.s.)'

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1

Blackman, Berkeley, and C. P. Lindner. "HARBOR AND COASTAL PROBLEMS ON THE EAST GULF COAST." Coastal Engineering Proceedings 1, no. 2 (January 1, 2000): 20. http://dx.doi.org/10.9753/icce.v2.20.

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The "East Gulf Coast" discussed herein embraces the coast of the Gulf of Mexico from Cape Sable, Florida, generally northerly and westerly to the Rigolets, Louisiana (See Figure 1). So far as concerns Federal waterway improvements, the section is under the jurisdiction of the South Atlantic Division, Corps of Engineers, U. S. Array, Atlanta, Ga. That section in Florida as far northward as the mouth of the Aucilla River is administered by the District Engineer, Jacksonville, Fla,; thence westerly to the Rigolets, by the District Engineer, Mobile, Ala.
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2

Adams, Douglas H., and Robert H. McMichael. "Mercury in king mackerel, Scomberomorus cavalla, and Spanish mackerel, S. maculatus, from waters of the south-eastern USA: regional and historical trends." Marine and Freshwater Research 58, no. 2 (2007): 187. http://dx.doi.org/10.1071/mf06096.

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Mackerels and other piscivorous marine fishes can contain significant levels of mercury. To monitor and better understand mercury levels in mackerel populations, total mercury concentrations were analysed in dorsal muscle tissue from 279 king mackerel, Scomberomorus cavalla, and from 580 Spanish mackerel, S. maculatus, collected from offshore and coastal waters of the Atlantic Ocean and Gulf of Mexico in the south-eastern USA. Mercury levels in king mackerel ranged from 0.19 to 3.6 ppm (mean = 0.94 ppm; median = 0.65 ppm) on the Atlantic coast and from 0.18 to 4.0 ppm (mean = 1.51 ppm; median = 1.3 ppm) on the gulf coast. Total mercury levels for Spanish mackerel ranged from 0.04 to 1.3 ppm (mean = 0.32 ppm; median = 0.27 ppm) on the Atlantic coast and from 0.09 to 3.2 ppm (mean = 0.53 ppm; median = 0.44 ppm) on the gulf coast. Data from the present study suggest that Gulf of Mexico king and Spanish mackerel contain significantly higher levels of mercury than those from the Atlantic coast. Total mercury levels and fish length were positively related in both species and in both regions. A positive relationship between total mercury levels and king mackerel age was also detected. No differences in mercury levels were observed between males and females within either species. Comparisons of pre- and post-1996 mercury levels indicated a short-term historical decline in total mercury levels of Spanish mackerel from gulf-coast waters between 1990 and 2002. Further, mercury levels of these species were higher than those recorded in the 1970s.
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3

Hens, Luc, Nguyen An Thinh, Tran Hong Hanh, Ngo Sy Cuong, Tran Dinh Lan, Nguyen Van Thanh, and Dang Thanh Le. "Sea-level rise and resilience in Vietnam and the Asia-Pacific: A synthesis." VIETNAM JOURNAL OF EARTH SCIENCES 40, no. 2 (January 19, 2018): 127–53. http://dx.doi.org/10.15625/0866-7187/40/2/11107.

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Climate change induced sea-level rise (SLR) is on its increase globally. Regionally the lowlands of China, Vietnam, Bangladesh, and islands of the Malaysian, Indonesian and Philippine archipelagos are among the world’s most threatened regions. Sea-level rise has major impacts on the ecosystems and society. It threatens coastal populations, economic activities, and fragile ecosystems as mangroves, coastal salt-marches and wetlands. This paper provides a summary of the current state of knowledge of sea level-rise and its effects on both human and natural ecosystems. The focus is on coastal urban areas and low lying deltas in South-East Asia and Vietnam, as one of the most threatened areas in the world. About 3 mm per year reflects the growing consensus on the average SLR worldwide. The trend speeds up during recent decades. The figures are subject to local, temporal and methodological variation. In Vietnam the average values of 3.3 mm per year during the 1993-2014 period are above the worldwide average. Although a basic conceptual understanding exists that the increasing global frequency of the strongest tropical cyclones is related with the increasing temperature and SLR, this relationship is insufficiently understood. Moreover the precise, complex environmental, economic, social, and health impacts are currently unclear. SLR, storms and changing precipitation patterns increase flood risks, in particular in urban areas. Part of the current scientific debate is on how urban agglomeration can be made more resilient to flood risks. Where originally mainly technical interventions dominated this discussion, it becomes increasingly clear that proactive special planning, flood defense, flood risk mitigation, flood preparation, and flood recovery are important, but costly instruments. Next to the main focus on SLR and its effects on resilience, the paper reviews main SLR associated impacts: Floods and inundation, salinization, shoreline change, and effects on mangroves and wetlands. The hazards of SLR related floods increase fastest in urban areas. This is related with both the increasing surface major cities are expected to occupy during the decades to come and the increasing coastal population. In particular Asia and its megacities in the southern part of the continent are increasingly at risk. The discussion points to complexity, inter-disciplinarity, and the related uncertainty, as core characteristics. An integrated combination of mitigation, adaptation and resilience measures is currently considered as the most indicated way to resist SLR today and in the near future.References Aerts J.C.J.H., Hassan A., Savenije H.H.G., Khan M.F., 2000. Using GIS tools and rapid assessment techniques for determining salt intrusion: Stream a river basin management instrument. 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Spencer T., Schuerch M., Nicholls R.J., Hinkel J., Lincke D., Vafeidis A.T., Reef R., McFadden L., Brown S., 2016. Global coastal wetland change under sea-level rise and related stresses: The DIVA wetland change model. Global and Planetary Change, 139, 15-30. Doi:10.1016/j.gloplacha.2015.12.018. Stammer D., Cazenave A., Ponte R.M., Tamisiea M.E., 2013. Causes of contemporary regional sea level changes. Annual Review of Marine Science, 5, 21-46. Doi: 10.1146/annurev-marine-121211-172406. Tett P., Mee L., 2015. Scenarios explored with Delphi. In: Coastal zones ecosystems services. Eds., Springer, Berlin, Germany, 127-144. Tran Hong Hanh, 2017. Land use dynamics, its drivers and consequences in the Ca Mau province, Mekong delta, Vietnam. PhD dissertation, 191p. VUBPRESS Brussels University Press, ISBN 9789057186226, Brussels, Belgium. Tran Thuc, Nguyen Van Thang, Huynh Thi Lan Huong, Mai Van Khiem, Nguyen Xuan Hien, Doan Ha Phong, 2016. Climate change and sea level rise scenarios for Vietnam. Ministry of Natural resources and Environment. Hanoi, Vietnam. Tran Hong Hanh, Tran Thuc, Kervyn M., 2015. Dynamics of land cover/land use changes in the Mekong Delta, 1973-2011: A remote sensing analysis of the Tran Van Thoi District, Ca Mau province, Vietnam. Remote Sensing, 7, 2899-2925. Doi: 10.1007/s00254-007-0951-z Van Lavieren H., Spalding M., Alongi D., Kainuma M., Clüsener-Godt M., Adeel Z., 2012. Securing the future of Mangroves. The United Nations University, Okinawa, Japan, 53, 1-56. Water Resources Directorate. Ministry of Agriculture and Rural Development, 2016. Available online: http://www.tongcucthuyloi.gov.vn/Tin-tuc-Su-kien/Tin-tuc-su-kien-tong-hop/catid/12/item/2670/xam-nhap-man-vung-dong-bang-song-cuu-long--2015---2016---han-han-o-mien-trung--tay-nguyen-va-giai-phap-khac-phuc. Last accessed on: 30/9/2016. Webster P.J., Holland G.J., Curry J.A., Chang H.-R., 2005. Changes in tropical cyclone number, duration, and intensity in a warming environment. Science, 309, 1844-1846. Doi: 10.1126/science.1116448. Were K.O., Dick O.B., Singh B.R., 2013. Remotely sensing the spatial and temporal land cover changes in Eastern Mau forest reserve and Lake Nakuru drainage Basin, Kenya. Applied Geography, 41, 75-86. Williams G.A., Helmuth B., Russel B.D., Dong W.-Y., Thiyagarajan V., Seuront L., 2016. Meeting the climate change challenge: Pressing issues in southern China an SE Asian coastal ecosystems. Regional Studies in Marine Science, 8, 373-381. Doi: 10.1016/j.rsma.2016.07.002. Woodroffe C.D., Rogers K., McKee K.L., Lovdelock C.E., Mendelssohn I.A., Saintilan N., 2016. Mangrove sedimentation and response to relative sea-level rise. Annual Review of Marine Science, 8, 243-266. Doi: 10.1146/annurev-marine-122414-034025.
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Barinova, Sophia, Larisa Ryabushko, Daria Balycheva, Anastasiia Blaginina, Elena Chiernyavsky, and Armine Shiroyan. "Benthic Diatoms on Macrophytes of the Israeli Mediterranean Coast." Diversity 16, no. 6 (June 11, 2024): 338. http://dx.doi.org/10.3390/d16060338.

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Benthic diatoms have been studied in different areas of the Mediterranean Sea, but no data have been available for Israeli coastal waters until the present time. In this work, the composition, ecology, and phytogeography of diatoms of the macrophytes epiphyton are presented for the first time. Altogether, 85 diatom taxa were found among the epiphyton of 25 species of green, brown, and red macroalgae from the Israeli coast between March and May of 2021. These diatoms represent three classes, 17 orders, 26 families, and 41 genera. The taxonomic composition, ecology, and phytogeography of species are discussed. The distribution of diatoms are compared to that of other macrophytes and anthropogenic loads across the shoreline. The dominant species are given. Ecological characteristics and abundance in communities of revealed species are represented and statistically analyzed. The index of saprobity S varies between 1.69–2.71. Sites that stressed aquatic communities are indicated. The influence of the anthropogenic loads on the coastal territories is defined as a major factor that stimulated diatom species richness. Sites with anthropogenic stress for aquatic communities are indicated. Based on the composition of bioindicators, it is concluded that the section of the Israeli coast studied is oligo-mesotrophic compared to the eutrophic Gulf of Tartus.
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Wirgin, Isaac I., Tun-Liang Ong, Lorraine Maceda, John R. Waldman, David Moore, and Simon Courtenay. "Mitochondrial DNA Variation in Striped Bass (Morone saxatilis) from Canadian Rivers." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 1 (January 1, 1993): 80–87. http://dx.doi.org/10.1139/f93-010.

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Mitochondrial DNA(mtDNA)was analysed to determine the genetic relatedness of striped bass (Morone saxatilis) populations in tributaries to the Gulf of St. Lawrence and the Bay of Funday. Mitochondrial DNA genotype frequencies were compared with those of striped bass from the Shubenacadie River (Bay of Fundy) and the Miramichi and Tabusintac rivers (Gulf of St. Lawrence). These mtDNA genotype frequencies were compared with those of striped bass representative of the Atlantic coastal migratory stock originating in the Hudson River and Chesapeake Bay. Differences in the frequencies of mtDNA length variants permitted discrimination of the Shubenacadie River from the Miramichi River and Tabusintac River populations and all three Canadian populations from the U S. spawned costal migratory stock. No difference in the frequency of mtDNA length variants was observed between Tabusintac River and Miramichi River striped bass. Heteroplasmy for mtDNA length variants was observed in 35% of Gulf of St. Lawrence fish, the highest frequency observed in any striped bass population. These results highlight the genetic heterogeneity of these Canadian striped bass populations and their distinctiveness from U S. stocks. Future efforts to restore these depleted Canadian striped bass populations should consider the impact of stock transfer on endemic striped bass gene pools.
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May-Tec, Ana Luisa, Carlos Baños-Ojeda, and Edgar F. Mendoza-Franco. "Parasitic crustaceans (Branchiura and Copepoda) parasitizing the gills of puffer fish species (Tetraodontidae) from the coast of Campeche, Gulf of Mexico." ZooKeys 1089 (March 16, 2022): 73–92. http://dx.doi.org/10.3897/zookeys.1089.79999.

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New information on the marine parasitic crustaceans from the Campeche coast, Gulf of Mexico (GoM), can improve our baseline knowledge of the ecology of both the host and parasite by providing, for example, parameters of infection. Such knowledge is especially important for fish farming, so that appropriate quarantine measures can be established. Our aim was to morphologically identify the parasitic crustaceans infecting puffer fish of commercial importance in the coastal zone of Campeche, Mexico. We provide new information on four known species of parasitic crustaceans from 92 specimens representing five species of tetraodontid fish. The parasitic crustaceans Argulus sp. (Branchiura, Argulidae), Caligus haemulonis (Caligidae), Pseudochondracanthus diceraus (Chondracanthidae), and Taeniacanthus lagocephali (Taeniacanthidae) (all Copepoda) were found on Lagocephalus laevigatus, Sphoeroides nephelus, S. parvus, S. spengleri, and S. testudineus. This study revealed the occurrence of P. diceraus, which is of importance in aquaculture, on Sphoeroides annulatus in the Mexican Pacific. Additionally, our results and other documentary records provide the first evidence of the interoceanic occurrence of the same parasitic crustacean species in the south-southwest of Gulf of Mexico, the Atlantic Ocean, and the Pacific Ocean. Moreover, our study provides valuable information on the biodiversity of parasitic crustaceans present in the GoM on puffer fish which are of great commercial importance for human consumption, fisheries, and aquaculture.
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Emslie, Steven D. "An early Irvingtonian avifauna from Leisey Shell Pits, Hillsborough County, Florida." Bulletin of the Florida Museum of Natural History 37, no. 10 (March 14, 1995): 299–344. http://dx.doi.org/10.58782/flmnh.hmin9127.

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A new early Irvingtonian avifauna is reported from Leisey Shell Pit, Hillsborough County, Florida. Bones of at least 30 extant and 15 extinct taxa are identified, including new species of spoonbill (Ajaia chione) and ibis (Eudocimus leiseyi). The avifauna is composed primarily of aquatic and wading species, with the earliest fossil occurrence of trumpeter swan (Cygnus buccinator), spoonbill, extinct flamingo (Phoenicopterus copei), eagle (Amplibuteo sp.) and the teratorn (Teratornis merriami), and the latest occurrence of an extinct loon (Gavia concinna). The flamingo, eagle, a large teratorn (Teratornis cf. T. incredibilis), and an extinct goose (Branta dickeyi) are also the first records of these taxa in the eastern U. S. The avifauna is indicative of a paleoenvironment of a coastal tidal marsh or wetland with nearby mud flats and sandy shores. This habitat is common along the Gulf Coast of Florida today, but lacks the diversity of avian species that was present in the early Pleistocene.
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Wong, P. L., and R. C. Anderson. "Host and geographic distribution of Skrjabinoclava spp. (Nematoda: Acuarioidea) in Nearctic shorebirds (Aves: Charadriiformes), and evidence for transmission in marine habitats in staging and wintering areas." Canadian Journal of Zoology 68, no. 12 (December 1, 1990): 2539–52. http://dx.doi.org/10.1139/z90-355.

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Twelve species of shorebirds belonging to the families Charadriidae (N = 3) and Scolopacidae (N = 9) were infected with 11 species of Skrjabinoclava and there was little overlap of parasites between these two families of birds. Most Skrjabinoclava spp. are transmitted apparently in marine staging and (or) wintering areas of their hosts, as indicated by the presence of larval stages of six species. There was no evidence that transmission occurs on the breeding grounds in freshwater habitats. Skrjabinoclava tupacincai, found predominantly in sanderlings (Calidris alba (Pallas)), is transmitted on the Pacific (Washington, California, Chile) and Atlantic coasts (New Jersey) in winter and the Gulf of Mexico (Florida and Texas) in winter and spring. Skrjabinoclava myersi was found, with a single exception, only in sanderlings, and transmission is apparently restricted to coastal Washington and California in winter. Skrjabinoclava bakeri, found predominantly in western sandpipers (Calidris mauri Cabanis), is transmitted on the Pacific coast (California) and in the Gulf of Mexico in winter. Skrjabinoclava morrisoni and Skrjabinoclava pusillae were found mainly in semipalmated sandpipers (Calidrispusilla (L.)). Both parasites are transmitted in the Gulf of Mexico in spring, but S. morrisoni is also transmitted in the Bay of Fundy in fall. Skrjabinoclava inornatae, found mainly in willets (Catoptrophorus semipalmatus (Gmelin)), is transmitted in Louisiana, Texas, and Peru in winter. Skrjabinoclava kritscheri was found only in marbled godwits (Limosafedoa (L.)), and it is suggested that infected birds collected in southern Alberta in spring acquired their infections while wintering along the Pacific coast of the United States. Skrjabinoclava hartwichi, found in black turnstones (Arenaria melanocephala (Vigors)) wintering in California and ruddy turnstones (Arenaria interpres (L.)) wintering in Peru, is transmitted along the Pacific coast of North America. Skrjabinoclava semipalmatae was found in semipalmated plovers (Charadrius semipalmatus Bonaparte) wintering in California. Skrjabinoclava wilsoniae was found in Wilson's plover (Charadrius wilsonia Ord) wintering in Texas and in a black-bellied plover (Pluvialis squatarola (L.)) migrating through southern Alberta in spring. Skrjabinoclava bartlettae was found in black-bellied plovers collected in southern Alberta in spring and Louisiana in winter.
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PACE, MATTHEW C. "Spiranthes bightensis (Orchidaceae), a New and Rare Cryptic Hybrid Species Endemic to the U. S. Mid-Atlantic Coast." Phytotaxa 498, no. 3 (April 30, 2021): 159–76. http://dx.doi.org/10.11646/phytotaxa.498.3.2.

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Recognizing species diversity is challenging in genera that display interspecific similarity and intraspecific variation; hybridization and the evolution of cryptic hybrid species amplifies these challenges. Recent molecular and morphological research focused on the systematics of Spiranthes (Orchidaceae) support hybrid speciation as an important driver of species diversity, particularly within the S. cernua species complex. Working under an integrated history-bound phylogenetic species concept, new molecular and morphometric data provide evidence for a new and rare cryptic hybrid species resulting from the ancient hybridization of S. cernua × S. odorata, here described as S. bightensis. Although S. bightensis is regionally sympatric with S. cernua it does not co-occur with that species, and it is allopatric with respect to S. odorata. Endemic to a narrow region extending from the Delmarva Peninsula to Long Island, New York, this new species occurs in the shadow of the Northeast megalopolis and appears to have undergone a major population decline over the last 200 years. By recognizing this distinct evolutionary lineage as a new species, this research is the first step towards developing conservation protocols for this rare species and highlights the importance of the North American Geologic Coastal Plain for biodiversity conservation and evolution.
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Saghatelyan, A. A. "Phytogeographical relationships and analysis of the flora of South Texas Plains." Journal of the Botanical Research Institute of Texas 11, no. 2 (November 29, 2017): 527–61. http://dx.doi.org/10.17348/jbrit.v11.i2.1090.

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The southernmost tip of Texas is a part of the Tamaulipan Province of northeastern Mexico which some authors consider in the Madrean Subkingdom of the Holarctic Kingdom, while others the “Xerofitica Mexicana” of the Neotropical Kingdom. To shed more light on this question, a natural flora of fourteen counties in the S TX Plains ecoregion, South Texas Plains flora (S TX), was compiled, studied from a biogeographical perspective, and analyzed in this work. The analysis was based primarily on the species and genera distribution outlines. Phylogenetic literature was searched to find relationships, patterns of migrations, and geographical connections of the species of major clades. Taxonometric and geographic spectra of the S TX flora were obtained and compared with those of two other floras in southern Texas: SC Texas (EP, or Edwards Plateau) and Big Bend Region (BB). There are 1250 native species in 553 genera and 117 families in the S TX flora. These species were classified into 25 geographic (floristic) elements. Herein is presented a checklist of S TX accompanied by the geoelement descriptions, a comparison of geographical spectra of the species and genera in all three floras, and the biogeographical analysis of the S TX flora. South TX, having a flat topography and being on the crossroads of migration routes, has multiple connections with adjacent floristic centers. The Tamaulipan endemism is not particularly high (8% in S TX) in comparison with much higher Chihuahuan endemism in BB (23% in BB; 10% in S TX). Proportions of taxa of the largest families in the three southern Texas floras show much higher numbers of tropical-subtropical, Tamaulipan, Gulf Coast, and Mesoamerican (coastal) species in the S TX flora in comparison with those of EP and BB. North temperate, E North American, and Prairie species are best represented in EP (47%), followed by S TX (36%), with only 17% in BB. The majority of the BB differential species are in the Chihuahuan, SW N American, Sonoran/Apachian, and the Madrean geoelements. The genera of the largest family, Asteraceae, that are differential among the three floras show importance of the Mexican (Madrean) centers of diversity as well as migrations from the Tethyan Subkingdom in the assembly of the S TX flora. Tethyan connections are also evident among the Boraginaceae s. str. and some other groups found in the flora. The spectra of generic and specific geographical elements of S TX illustrate transitional position of its flora. It represents an ecotone between the Western (Madrean) and the Eastern (Atlantic and Gulf Coast) N American Regions, with a very high influence of the various Neotropical elements and a higher affinity to the EP flora than to that of BB.
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Vila, Maria, Rafel Simó, Ronald P. Kiene, Jarone Pinhassi, José M. González, Mary Ann Moran, and Carlos Pedrós-Alió. "Use of Microautoradiography Combined with Fluorescence In Situ Hybridization To Determine Dimethylsulfoniopropionate Incorporation by Marine Bacterioplankton Taxa." Applied and Environmental Microbiology 70, no. 8 (August 2004): 4648–57. http://dx.doi.org/10.1128/aem.70.8.4648-4657.2004.

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ABSTRACT The fraction of planktonic heterotrophic bacteria capable of incorporating dissolved dimethylsulfoniopropionate (DMSP) and leucine was determined at two coastal sites by microautoradioagraphy (AU). In Gulf of Mexico seawater microcosm experiments, the proportion of prokaryotes that incorporated sulfur from [35S]DMSP ranged between 27 and 51% of 4′,6-diamidino-2-phenylindole (DAPI)-positive cells, similar to or slightly lower than the proportion incorporating [3H]leucine. In the northwest Mediterranean coast, the proportion of cells incorporating sulfur from [35S]DMSP increased from 5 to 42% from January to March, coinciding with the development of a phytoplankton bloom. At the same time, the proportion of cells incorporating [3H]leucine increased from 21 to 40%. The combination of AU and fluorescence in situ hybridization (FISH) revealed that the Roseobacter clade (α-proteobacteria) accounted for 13 to 43% of the microorganisms incorporating [35S]DMSP at both sampling sites. Significant uptake of sulfur from DMSP was also found among members of the γ-proteobacteria and Cytophaga-Flavobacterium groups. Roseobacter and γ-proteobacteria exhibited the highest percentage of DAPI-positive cells incorporating 35S from DMSP (around 50%). Altogether, the application of AU with [35S]DMSP combined with FISH indicated that utilization of S from DMSP is a widespread feature among active marine bacteria, comparable to leucine utilization. These results point toward DMSP as an important substrate for a broad and diverse fraction of marine bacterioplankton.
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12

Muñoz, Práxedes, Lorena Rebolledo, Laurent Dezileau, Antonio Maldonado, Christoph Mayr, Paola Cárdenas, Carina B. Lange, et al. "Reconstructing past variations in environmental conditions and paleoproductivity over the last ∼ 8000 years off north-central Chile (30° S)." Biogeosciences 17, no. 22 (November 24, 2020): 5763–85. http://dx.doi.org/10.5194/bg-17-5763-2020.

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Abstract. The aim of this project was to establish past variations in the main oceanographic and climatic features of a transitional semiarid ecosystem on the north-central Chilean coast. We analyzed recent sedimentary records retrieved from two bays, Guanaqueros and Tongoy (30∘ S), for geochemical and biological analyses, including the following: sensitive redox trace elements, biogenic opal, total organic carbon (TOC), diatoms and stable isotopes of organic carbon and nitrogen. Three remarkable periods were established with different environmental conditions and productivities: (1) > 6600 cal BP, (2) 4500–1800 cal BP and (3) 140 cal BP to the present (2015 CE). The first period was characterized by a remarkably higher productivity (higher diatom abundances and opal) in which large fluxes of organic compounds were also inferred from the accumulation of elements, such as Ba, Ca, Ni, Cd and P, in the sediments. Meanwhile, significantly reduced conditions at the bottom of the bays were suggested based on the large accumulation of Mo, Re and U, showing a peak at 6600 cal BP, when sulfidic conditions could have been present. According to the pollen moisture index (PMI), this was also identified as the driest interval. These conditions should be associated with an intensification of the Southern Pacific Subtropical Anticyclone (SPSA) and stronger southerly western winds, emulating La Niña-like conditions, as has been described for the SE Pacific during the early Holocene and part of the mid-Holocene. During most of the second period, lower productivity was observed; however, a small increase was identified between 3400 and 4000 cal BP, although lower amounts of diatom (valves g−1) and nutrient-type metal accumulations were evident. Anoxic conditions at the bottom of the bays changed to an almost stable suboxic condition during this time interval. The third period was marked by intense oxygenation after 1800 cal BP, as observed by a drastic change in the accumulation of U, Mo and Re. This was followed by a return to more reduced conditions over the past 2 centuries, characterized by a small productivity rise after ∼140 cal BP, as suggested by the opal accumulations. Overall, lower primary productivity, lower reduced conditions at the bottom and higher-humidity conditions were established after 6600 cal BP to the present. We suggest that the oxygenation might be associated with a weak effect from the oxygen minimum zone over the shelf and intensified El Niño activity, introducing oxygenated waters to the coastal zones through the propagation of equatorial waves and establishment of conditions that reduced the primary productivity from the mid-Holocene toward the beginning of the modern era.
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MEANS, D. BRUCE, JENNIFER Y. LAMB, and JOSEPH BERNARDO. "A new species of dusky salamander (Amphibia: Plethodontidae: Desmognathus) from the Eastern Gulf Coastal Plain of the United States and a redescription of D. auriculatus." Zootaxa 4263, no. 3 (May 10, 2017). http://dx.doi.org/10.11646/zootaxa.4263.3.3.

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The Coastal Plain of the southeastern U. S. is one of the planet’s top biodiversity hotspots and yet many taxa have not been adequately studied. The plethodontid salamander, Desmognathus auriculatus, was originally thought to occur from east Texas to Virginia, a range spanning dozens of interfluves and large river systems. Beamer and Lamb (2008) found five independent mitochondrial lineages of what has been called D. auriculatus in the Atlantic Coastal Plain, but did not examine the extensive distribution of D. auriculatus in the Gulf Coastal Plain. We present morphological and molecular genetic data distinguishing two evolutionarily independent and distantly related lineages that are currently subsumed under the taxon D. auriculatus in the eastern Gulf Coastal Plain. We describe one of these as a new species, Desmognathus valentinei sp. nov., and assign the second one to D. auriculatus which we formally redescribe.
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Huysman, Allison E., Nathan W. Cooper, Joseph A. Smith, Susan M. Haig, Susan A. Heath, Luanne Johnson, Elizabeth Olson, Kevin Regan, Jennifer K. Wilson, and Peter P. Marra. "Strong migratory connectivity indicates Willets need subspecies-specific conservation strategies." Ornithological Applications, April 16, 2022. http://dx.doi.org/10.1093/ornithapp/duac015.

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Abstract By combining all available banding and tracking data, we found that Willets (Tringa semipalmata) have a strong migratory connectivity between breeding and nonbreeding locations at the range-wide and subspecies levels, exposing two subspecies to varying threats such as hunting for the eastern subspecies (T. s. semipalmata) and climatically-altered coastal habitats for both subspecies. We found that western Willets (T. s. inornata) primarily used nonbreeding habitats along the Pacific Coast of the United States, although their reported nonbreeding range extends to the U.S. Atlantic and Gulf Coasts and the Pacific Coast of Central and South America. Eastern Willets wintered in Central and South America, which covers much of the subspecies’ known nonbreeding range. By quantifying migratory connectivity within and between two subspecies, we could suggest subspecies-specific threats and potential limiting factors in the breeding and nonbreeding periods of the annual cycle of a declining migratory shorebird. Effective management of the species will likely require a range of conservation strategies across the diverse nonbreeding regions the two subspecies occupy within the United States, Central America, and South America. However, more data are needed from Willets breeding in mid-continental North America to understand the complete extent of overlap of the two subspecies throughout the annual cycle. The strong migratory connectivity documented here highlights the need to manage Willets by subspecies and protect a diversity of breeding and nonbreeding habitats, which will benefit the conservation of other shorebird species that overlap with Willets throughout the annual cycle.
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Jabr, Noura, Paul Gonzalez, Kevin M. Kocot, and Christopher B. Cameron. "The embryology, metamorphosis, and muscle development of Schizocardium karankawa sp. nov. (Enteropneusta) from the Gulf of Mexico." EvoDevo 14, no. 1 (April 19, 2023). http://dx.doi.org/10.1186/s13227-023-00212-0.

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AbstractSchizocardium karankawa sp. nov. has been collected from subtidal muds of the Laguna Madre, Texas, and the Mississippi coast, Gulf of Mexico. The Texas population is reproductive from early February to mid-April. Gametes are liberated by a small incision in a gonad. Oocyte germinal vesicle breakdown is increased in the presence of sperm, and the highest fertilization success was in the artificial seawater Jamarin U. Manually dechorionated embryos develop normally. Development was asynchronous via a tornaria larva, metamorphosis and maintained to the juvenile worm 6 gill-pore stage. Phalloidin-labeled late-stage tornaria revealed retractor muscles that connect the pericardial sac with the apical tuft anteriorly, the oesophagus ventrally, and muscle cells of the early mesocoels. The muscle development of early juvenile worms began with dorso-lateral trunk muscles, lateral trunk bands, and sphincters around the gill pores and anus. Adult worms are characterized by a stomochord that bifurcates anteriorly into paired vermiform processes, gill bars that extend almost the entire dorsal to ventral branchial region resulting in a narrow ventral hypobranchial ridge, and an elaborate epibranchial organ with six zones of discrete cell types. The trunk has up to three rows of liver sacs, and lateral gonads. The acorn worm evo-devo model species Saccoglossus kowalevskii, Ptychodera flava, and Schizocardium californicum are phylogenetically distant with disparate life histories. S. karnakawa from S. californicum are phylogenetically close, and differences between them that become apparent as adult worms include the number of gill pores and hepatic sacs, and elaborations of the heart–kidney–stomochord complex. An important challenge for evolutionary developmental biology is to form links from phylogenetically distant and large-scale differences to phylogenetically close and small-scale differences. This description of the embryology, development, and adult morphology of S. karankawa permits investigations into how acorn worm development evolves at fine scales.
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Seaton, Beth. "Feeling the Heat." M/C Journal 8, no. 6 (December 1, 2005). http://dx.doi.org/10.5204/mcj.2457.

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Was it seven or eight summers ago, when the sun first became our enemy and set our skin on fire? We find it now in the normality of strange weather and the telescoping of the seasons; wherein it’s 27 degrees and there are no leaves yet on the trees, a hot August day in April. We watch the media spectacles of monster storms and mud slides that arrive with increasing force and frequency. And we despair over the death of the Polar bears, starving because the Arctic sea-ice upon which they catch seals can no longer bear their weight. Up there, we hear, the permafrost is melting, and the Inuit of Baffin Island are witnessing thunder and lightning for the first time in their lives. Down here, along the southern border of Canada, we are just beginning to feel the fear in our guts. The ambivalence and discomfort which we may feel about these changes – whose effects are as intimate as they are remote – speak to a more subtle perception that everything has now come undone: realigned and re-made by forces beyond our control, and yet, of our own making. That significant futurity which was once the sine qua non of a rational modernity – the self-confident assurance that things can only get better and never worse – has fallen to the wayside of our collective memory, useful now only for the purposes of Hallmark greeting cards. As usual, we suffer from a failure of imagination, wherein the only facts worth knowing become unspeakable, verboten vulgarities never to be uttered out-loud in polite company. What accounts for this silence? While we may increasingly feel that something is amiss in the world, this experience is not authorised or legitimated by the propositions of commercial media or conventional thought. What are the social consequences of this gap between the corporeal experience of global warming and its public representation? Can such affectual experience be mined as a means to advocate social change? In Canadian and American commercial media, discussion of “global warming” is still largely absent (Ungar; Weingart, Engels and Pansegrau). When the hurricanes Katrina and Rita whirled into Level 5 status across the very hot waters of the Gulf of Mexico this Fall, mention of global warming was quickly flicked away as a minor irritant. Such omissions are not surprising, given the political economy of American media. The automobile industry spends US$3 billion out of a total of US$9 billion annual expenditures of all advertising on network television. Not one of these ads is for hybrid cars. It is also our idea of nature that allows us to relegate matters of the environment to the periphery of our concerns. In its more piously Wordsworthian vestiges, nature is deemed as self-evident and unaltered by the ravages of time. It’s this temporal stasis attributed to nature that allows us to absolve ourselves from its fate. Nature, after all, is the non-human. And while the argument that only humans make history – that only humans transform and innovate themselves and their environment and manipulate the dimensions of time – can be recognised as a neat piece of social construction built in the interests of human conquest, we are still reticent to acknowledge nature on its own terms. Val Plumwood has argued that, “if the category of ‘nature’ is seen as phony, if it can only appear when suitably surrounded by scare quotes, [then] we are less likely to be inspired by appeals to nature’s integrity in [it’s defence]” (3). Somehow, believing in nature slides into an unseemly essentialism or a fetishistic form of love. Perhaps it’s not surprising then that so many people do not feel compelled to come to nature’s defense. Survey research from the United States, published in 2000 and 2003, shows that while 90% of Americans have now heard of global warming and believe it’s an important issue, a much smaller percentage are actually concerned about it (Stamm, Clark and Eblacas; Leiserowitz). Other matters such as employment, the economy and the rising costs of housing take priority over environmental issues. Furthermore, the research finds that while espousing environmental values, only a small percentage of respondents would self-identify as “environmentalist”. While being pro-environment is perceived as “having good character”, having too much of this good character is a bad thing. Still, can’t they feel what’s going on? Certainly here on the coast of British Columbia, where rainforests still run along the ocean’s edge, something has changed. Nothing is quite as ‘temperate’ as it once was. The weather shifts unexpectedly and dramatically, and the summers have become too hot and too dry. Global warming has brought a new atmosphere to the forests, as if under all this unfamiliar dryness and dust a latent extinction is beginning to stir. This current prospect – the death of not just a million species of plant and animal life (Kirby), but of countless human lives – may be redirecting our attention now to the interdependent relation, the fluid interchanges, between human and non-human worlds. This deadly probability may engender a new vitality, new ways of feeling life. “Nature”, as Michel Serres puts it, “is reminding us of its existence” (29). The challenge posed by this recognition prohibits the perception of nature in static terms, as a commodity or as handy oubliette for societal debris. In so doing, feeling the life of nature allows consideration of the ways in which nature and human culture have long been wedded to one another, not just in terms of the semiotic operations of a binarism, but as a complex and reciprocal project of interdependent life. Recognition of the interdependence of human and non-human life may also entail a particular affectual sensibility – a means of feeling life as it resonates against our skin and fills our senses. In this moment, “everything that is, resounds”. Here, “the sense and recognisability of things … do not lie in conceptual categories in which we mentally place them, but in their positions and orientations which our postures address” (Lingus 59). It’s not a question then of what nature means to us, but does nature do with us? How does it make us feel? Emotion has remained discursively submerged in discussions of climate change, not only because the stakes are such that only the scientists, with their particular authority and legitimacy, are afforded a voice, but also because it threatens the legitimacy of a formal rationalist representation of nature which excludes the non-human from the purview of ethical consideration. An affectual relationship to the natural world does have its difficulties. “Feeling nature” is based upon some sort of understanding with it, a form of competency, of ‘knowing your way around’. Such knowledges are often bound by class: the privileged remit of the romantic individual in search of an authentic experience, or the uncomfortable locale of hard and often violent labour. Still, it is in feeling the shrinking of life into the shadows of an uncommon heat that we may use this sentience to good effect. In his book The Natural Contract, Michel Serres argues that, “through exclusively social contracts, we have abandoned the bond that connects us to the world. … What language do the things of the world speak that we might come to an understanding of them contractually? … In fact, the Earth speaks to us in terms of forces, bonds and interactions … each of the partners in symbiosis thus owes … life to the other, on pain of death” (39). Long ago, when we were young, many of us made good money working in the coastal forest of British Columbia – either cutting it or milling it or planting it. I was alone there once for 6 weeks and was haunted daily by a raven who would track my movements through the trees, muttering incantations and clicks. By the time I walked out of the woods I was nearly speechless and it took me weeks to recover the easy cultural behaviour that came so naturally before. A friend of mine once had the job of getting rid of the young poplar and alder trees that colonise the logging slash. His task was to “cut and squirt”: to slash the trees with a machete and squirt poison inside the cut. Maybe it was a bad case of anthropomorphism, or maybe it was the drugs, but to this day, he swears he could hear the trees scream. References Kirby, Alex. “Climate Risk to Million Species.” BBC News Online, U.K. Edition, 7 Jan. 2004. Leiserowitz, A. American Opinions on Global Warming: Project Results. Eugene: U of Oregon, 2003. Lingus, Alphonso. The Imperitive. Bloomington: Indiana UP, 1998. Plumwood, Val. “Nature as Agency and the Prospects for a Progressive Naturalism.” Capitalism, Nature, Socialism 4 (2001): 3-32. Serres, Michel. The Natural Contract. (Trans. E. MacArthur and W. Paulson), Ann Arbor: Michigan UP, 1995. Stamm, K.R., F. Clark and P.R. Eblacas. “Mass Communication and Public Understanding of Environmental Problems: The Case of Global Warming.” Public Understanding of Science 9 (2000): 219-37. Ungar, S. “Is Strange Weather in the Air?: A Study of U.S. National News Coverage of Extreme Weather Events.” Climatic Change 41 (1999): 133-50. Weingart, P.A., A. Engels and P. Pansegrau. “Risks of Communication: Discourses on Climate Change in Science, Politics and the Mass Media.” Public Understanding of Science 9 (2000): 261-83. Citation reference for this article MLA Style Seaton, Beth. "Feeling the Heat." M/C Journal 8.6 (2005). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0512/08-seaton.php>. APA Style Seaton, B. (Dec. 2005) "Feeling the Heat," M/C Journal, 8(6). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0512/08-seaton.php>.
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17

Giblett, Rod. "New Orleans: A Disaster Waiting to Happen?" M/C Journal 16, no. 1 (March 19, 2013). http://dx.doi.org/10.5204/mcj.588.

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IntroductionNew Orleans is one of a number of infamous swamp cities—cities built in swamps, near them or on land “reclaimed” from them, such as London, Paris, Venice, Boston, Chicago, Washington, Petersburg, and Perth. New Orleans seemed to be winning the battle against the swamps until Hurricane Katrina of 2005, or at least participating in an uneasy truce between its unviable location and the forces of the weather to the point that the former was forgotten until the latter intruded as a stark reminder of its history and geography. Around the name “Katrina” a whole series of events and images congregate, including those of photographer Robert Polidori in his monumental book, After the Flood. Katrina, and the exacerbating factors of global warming and drained wetlands, and their impacts, especially on the city of New Orleans (both its infrastructure and residents), point to the cultural construction and production of the disaster. This suite of occurrences is a salutary instance of the difficulties of trying to maintain a hard and fast divide between nature and culture (Hirst and Woolley 23; Giblett, Body 16–17) and the need to think and live them together (Giblett, People and Places). A hurricane is in some sense a natural event, but in the age of global warming it is also a cultural occurrence; a flood produced by a river breaking its banks is a natural event, but a flood caused by breeched levees and drained wetlands is a cultural occurrence; people dying is a natural event, but people dying by drowning in a large and iconic American city created by drainage of wetlands is a cultural disaster of urban planning and relief logistics; and a city set in a swamp is natural and cultural, with the cultural usually antithetical to the natural. “Katrina” is a salutary instance of the cultural and natural operating together in and as “one single catastrophe” of history, as Benjamin (392) put it, and of geography I would add in the will to fill, drain, or reclaim wetlands. Rather than a series of catastrophes proceeding one after the other through history, Benjamin's (392) “Angel of History” sees one single catastrophe of history. This single catastrophe, however, occurs not only in time, in history, but also in space, in a place, in geography. The “Angel of Geography” sees one single catastrophe of geography of wetlands dredged, filled, and reclaimed, cities set in them and cities being re-reclaimed by them in storms and floods. In the case of “Katrina,” the catastrophe of history and geography is tied up with the creation, destruction, and recreation of New Orleans in its swampy location on the Mississippi delta.New OrleansNew Orleans is not only “the nation’s quintessential river city” as Kelman (199) puts it, but also one of a number of infamous swamp cities. In his post-Katrina preface to his study of New Orleans as what he calls “an unnatural metropolis,” Colten notes:While other cities have occupied wetlands, few have the combination of poorly-drained and flood-susceptible territory of New Orleans. Portions of Washington, D.C. occupied wetlands, but there was ample solid ground above the reach of the Potomac [River’s] worst floods. Chicago’s founders platted their city on a wetland site, but the sluggish Chicago River did not drain the massive territory of the Mississippi. (5)“Occupied” is arguably a euphemism for dredging, draining, filling, and reclaiming wetlands. Occupation also conjures up visions of an occupying army, which may be appropriate in the case of New Orleans as the Army Corps of Engineers have spearheaded much of the militarisation by dredging and draining wetlands in New Orleans and elsewhere in the U.S.The location for the city was not propitious. Wilson describes how “the city itself was constructed on an uneven patch of relatively high ground in the midst of a vast swamp” (86). New Orleans for Kelman “is surrounded by a wet world composed of terrain that is not quite land” (22) with the Mississippi River delta on one side and Lake Pontchartrain and the “backswamps” on the other, though the latter were later drained. The Mississippi River for Kelman is “the continent’s most famed and largest watercourse” (199). Perhaps it is also the continent’s most tamed and leveed watercourse. Earlier Kelman related how a prominent local commentator in 1847 “personified the Mississippi as a nurturing mother” because the river “hugged New Orleans to its ‘broad bosom’” (79). Supposedly this mother was the benign, malign, and patriarchal Mother Nature of the leveed river and not the recalcitrant, matrifocal Great Goddess of the swamps that threatened to break the levees and flood the city (see Giblett, Postmodern Wetlands; People and Places, especially Chapter 1). The Mississippi as the mother of all American rivers gave birth to the city of New Orleans at her “mouth,” or more precisely at the other end of her anatomy with the wetland delta as womb. Because of its location at the “mouth” of the Mississippi River, New Orleans for Flint was “historically the most important port in the United States” (230). Yet by the late 1860s the river was seen by New Orleanians, Kelman argues, only as “an alimentary canal, filled with raw waste and decaying animal carcasses” (124). The “mouth” of the river had ceased to be womb and had become anus; the delta had ceased to be womb and had become bowel. The living body of the earth was dying. The river, Kelman concludes, was “not sublime” and had become “an interstate highway” (146). The Angel of Geography sees the single catastrophe of wetlands enacted in the ways in which the earth is figured in a politics of spaces and places. Ascribing the qualities of one place to another to valorise one place and denigrate another and to figure one pejoratively or euphemistically (as in this case) is “placist” (Giblett, Landscapes 8 and 36). Deconstructing and decolonising placism and its use of such figures can lead to a more eco-friendly figuration of spaces and places. New Orleans is one place to do so.What Colten calls “the swampy mire behind New Orleans” was drained in the first 40 years of the twentieth century (46). Colten concludes that, “by the 1930s, drainage and landfilling efforts had successfully reclaimed wetland between the city and the lake, and in the post-war years similar campaigns dewatered marshlands for tract housing eastward and westward from the city” (140–1). For Wilson “much of New Orleans’s history can be seen as a continuing battle with the swamp” (86). New Orleans was a frontline in the modern war against wetlands, the kind of war that Fascists such as Mussolini liked to fight because they were so easy to win (see Giblett, Postmodern Wetlands 115). Many campaigns were fought against wetlands using the modern weapons of monstrous dredgers. The city had struck what Kelman calls “a Faustian bargain with the levees-only policy” (168). In other words, it had sold its soul to the devil of modern industrial technology in exchange for temporary power. New Orleans tried to dominate wetlands with the ironic result that not only “efforts to drain the city dominate early New Orleans history into the present day” as Wilson (86) puts it, but also that these efforts occasionally failed with devastating results. The city became dominated by the waters it had sought to dominate in an irony of history and geography not lost on the student of wetlands. Katrina was the means that reversed the domination of wetlands by the city. Flint argues that “Katrina’s wake-up call made it unconscionable to keep building on fragile coastlines […] and in floodplains” (232–3). And in swamps, I would add. Colten “traces the public’s abandonment of the belief that the city is no place for a swamp” (163). The city is also no place for the artificial swamp of the aftermath of Katrina depicted by Polidori. As the history of New Orleans attests, the swamp is no place for a city in the first place when it is being built, and the city is no place for a swamp in the second place when it is being ravaged by a hurricane and storm surges. City is antithetical and inimical to swamp. They are mutually exclusive. New Orleans for Wilson is “a city on a swamp” (90 my emphasis). In the 1927 flood (Wilson 111), for Kelman “one of the worst flood years in history” (157), and in the 2005 hurricane, the worst flood year so far in its history, New Orleans was transformed into a city of a swamp. The 1927 flood was at the time, and as Kelman puts it, “the worst ‘natural’ disaster in U.S. history” (161), only to be surpassed by the 2005 flood in New Orleans and the 2012 floods in north-eastern U.S. in the wake of Superstorm Sandy in which the drained marshlands of New York and New Jersey returned with a vengeance. In all these cases the swamp outside the city, or before the city, came into the city, became now. The swamp in the past returned in the present; the absent swamp asserted its presence. The historical barriers between city and swamp were removed. KatrinaKatrina for Kelman (xviii) was not a natural disaster. Katrina produced “water […] out of place” (Kelman x). In other words, and in Mary Douglas’s terms for whom dirt is matter out of place (Douglas 2), this water was dirt. It was not merely that the water was dirty in colour or composition but that the water was in the wrong place, in the buildings and streets, and not behind levees, as Polidori graphically illustrates in his photographs. Bodies were also out of place with “corpses floating in dirty water” (Kelman x) (though Polidori does not photograph these, unlike Dean Sewell in Aceh in the aftermath of the Asian tsunami in what I call an Orientalist pornography of death (Giblett, Landscapes 158)). Dead bodies became dirt: visible, smelly, water-logged. Colten argues that “human actions […] make an extreme event into a disaster […]. The extreme event that became a disaster was not just the result of Katrina but the product of three centuries of urbanization in a precarious site” (xix). Yet Katrina was not only the product of three centuries of urbanisation of New Orleans’ precarious and precious watershed, but also the product of three centuries of American urbanisation of the precarious and precious airshed through pollution with greenhouse gases.The watery geographical location of New Orleans, its history of drainage and levee-building, the fossil-fuel dependence of modern industrial capitalist economies, poor relief efforts and the storm combined to produce the perfect disaster of Katrina. Land, water, and air were mixed in an artificial quaking zone of elements not in their normal places, a feral quaking zone of the elements of air, earth and water that had been in the native quaking zone of swamps now ran amok in a watery wasteland (see Giblett, Landscapes especially Chapter 1). Water was on the land and in the air. In the beginning God, when created the heavens and the earth, darkness and chaos moved over the face of the waters, and the earth was without form and void in the geographical location of a native quaking zone. In the ending, when humans are recreating the heavens and the earth, darkness and chaos move over the face of the waters, and the earth is without form and void in the the geographical location and catastrophe of a feral quaking zone. Humans were thrown into this maelstrom where they quaked in fear and survived or died. Humans are now recreating the city of New Orleans in the aftermath of “Katrina.” In the beginning of the history of the city, humans created the city; from the disastrous destruction of some cities, humans are recreating the city.It is difficult to make sense of “Katrina.” Smith relates that, “as well as killing some 1500 people, the bill for the devastation wrought by Hurricane Katrina on New Orleans […] was US$200 billion, making it the most costly disaster in American history,” more than “9/11” (303; see also Flint 230). A whole series of events and images congregate around the name “Katrina,” including those of photographer Robert Polidori in his book of photographs, After the Flood, with its overtones of divine punishment for human sin as with the biblical flood (Coogan et al. Genesis, Chapters 6–7). The flood returns the earth to the beginning when God created heaven and earth, when “the earth was without form and darkness moved […] upon the face of the waters” (Coogan et al. Genesis Chapter 1, Verse 2)—God's first, and arguably best, work (Giblett, Postmodern Wetlands 142–143; Canadian Wetlands “Preface”). The single catastrophe of history and geography begins here and now in the act of creation on the first day and in dividing land from water as God also did on the second day (Coogan et al. Genesis Chapter 1, Verse 7)—God’s second, and arguably second best, work. New Orleans began in the chaos of land and water. This chaos recurs in later disasters, such as “Katrina,” which merely repeat the creation and catastrophe of the beginning in the eternal recurrence of the same. New Orleans developed by dividing land from water and is periodically flooded by the division ceasing to be returning the city to its, and the, beginning but this time inflected as a human-made “swamp,” a feral quaking zone (Giblett, Landscapes Chapter 1). Catastrophe and creativity are locked together from the beginning. The creation of the world as wetland and the separation of land and water was a catastrophic action on God's part. Its repetition in the draining or filling of wetlands is a catastrophic event for the heavens and earth, and humans, as is the unseparation of land and water in floods. What Muecke calls the rhetoric of “natural disaster” (259, 263) looms large in accounts of “Katrina.” In an escalating scale of hyperbole, “Katrina” for Brinkley was a “natural disaster” (5, 60, 77), “the worst natural disaster in modern U.S. history” (62), “the biggest natural disaster in recent American history” (273), and “the worst natural disaster in modern American history” (331). Yet a hurricane in and by itself is not a disaster. It is a natural event. Perhaps all that could simply be said is that “Katrina was one of the most powerful storms ever recorded in U.S. history” (Brinkley 73). Yet to be recorded in U.S. history “Katrina” had to be more than just a storm. It had also to be more than merely what Muecke calls an “oceanic disaster” (259) out to sea. It had to have made land-fall, and it had to have had human impact. It was not merely an event in the history of weather patterns in the U.S. For Brinkley “the hurricane disaster was followed by the flood disaster, which was followed by human disasters” (249). These three disasters for Brinkley add up to “the overall disaster, the sinking of New Orleans, [which] was a man-made disaster, resulting from poorly designed and managed levees and floodwalls” (426). The result was that for Brinkley “the man-made misery was worse than the storm” (597). The flood and the misery amount to what Brinkley calls “the Great Deluge [which] was a disaster that the country brought on itself” (619). The storm could also be seen as a disaster that the country brought on itself through the use of fossil fuels. The overall disaster comprising the hurricane the flood, the sinking city and its drowning or displaced inhabitants was preceded and made possible by the disasters of dredging wetlands and of global warming. Brinkley cites the work of Kerry Emanuel and concludes that “global warming makes bad hurricanes worse” (74). Draining wetlands also makes bad hurricanes worse as “miles of coastal wetlands could reduce hurricane storm surges by over three or four feet” (Brinkley 10). Miles of coastal wetlands, however, had been destroyed. Brinkley relates that “nearly one million acres of buffering wetlands in southern Louisiana disappeared between 1990 and 2005” (9). They “disappeared” as the result, not of some sort of sleight of hand or mega-conjuring trick, nor of erosion from sea-intrusion (though that contributed), but of deliberate human practice. Brinkley relates how “too many Americans saw these swamps and coastal wetlands as wastelands” (9). Wastelands needed to be redeemed into enclave estates of condos and strip developments. In a historical irony that is not lost on students of wetlands and their history, destroying wetlands can create the wasteland of flooded cities and a single catastrophe of history and geography, such as New Orleans in the aftermath of Hurricane Katrina.In searching for a trope to explain these events Brinkley turns to the tried and true figure of the monster, usually feminised, and “Katrina” is no exception. For him, “Hurricane Katrina had been a palpable monster, an alien beast” (Brinkley xiv), “a monstrous hurricane” (72), “a monster hurricane” (115), and “the monster storm” (Brinkley 453 and Flint 230). A monster, according to The Concise Oxford Dictionary (Allen 768), is: (a) “an imaginary creature, usually large and frightening, composed of incongruous elements; or (b) a large or ugly or misshapen animal or thing.” Katrina was not imaginary, though it or she was and has been imagined in a number of ways, including as a monster. “She” was certainly large and frightening. “She” was composed of the elements of air and water. These may be incongruous elements in the normal course of events but not for a hurricane. “She” certainly caused ugliness and misshapenness to those caught in her wake of havoc, but aerial photographs show her to be a perfectly shaped hurricane, albeit with a deep and destructive throat imaginable as an orally sadistic monster. ConclusionNew Orleans, as Kelman writes in his post-Katrina preface, “has a horrible disaster history” (xii) in the sense that it has a history of horrible disasters. It also has a horrible history of the single disaster of its swampy location. Rather than “a chain of events that appears before us,” “the Angel of History” for Benjamin “sees one single catastrophe which keeps piling wreckage upon wreckage” (392). Rather than a series of disasters of the founding, drainage, disease, death, floods, hurricanes, etc. that mark the history of New Orleans, the Angel of History sees a single, catastrophic history, not just of New Orleans but preceding and post-dating it. This catastrophic history and geography began in the beginning when God created the heavens and the earth, darkness and chaos moved over the face of the waters, the earth was without form and void, and when God divided the land from the water, and is ending in industrial capitalism and its technologies, weather, climate, cities, floods, rivers, and wetlands intertwining and inter-relating together as entities and agents. Rather than a series of acts and sites of creativity and destruction that appear before us, the Angel of Geography sees one single process and place which keeps (re)creating order out of chaos and chaos out of order. This geography and history began at the beginning when God created the heavens and the earth, and the wetland, and divided land from water, and continues when and as humans drain(ed) wetlands, create(d) cities, destroy(ed) cites, rebuilt/d cities and rehabilitate(d) wetlands. “Katrina” is a salutary instance of the cultural and natural operating together in the one single catastrophe and creativity of divine and human history and geography.ReferencesAllen, Robert. The Concise Oxford Dictionary. 8th ed. Oxford: Clarendon Press, 1990.Benjamin, Walter. “On the Concept of History.” Selected Writings Volume 4: 1938–1940. Eds. Howard Eiland and Michael W. Jennings. Cambridge, MA: The Belknap Press of Harvard UP, 2003. 389–400.Brinkley, Douglas. The Great Deluge: Hurricane Katrina, New Orleans and the Mississippi Gulf Coast. New York: William Morrow, 2006.Colten, Craig. An Unnatural Metropolis: Wresting New Orleans from Nature. Baton Rouge: Louisiana State UP, 2006.Coogan, Michael, Marc Brettler, Carol Newsom, and Pheme Perkins, eds. The New Oxford Annotated Bible, New Revised Standard Version with the Apocrypha. 4th ed. New York: Oxford UP, 2010.Douglas, Mary. Purity and Danger: An Analysis of the Concepts of Pollution and Taboo. London: Routledge, 1966.Flint, Anthony. This Land: The Battle over Sprawl and the Future of America. Baltimore: Johns Hopkins UP, 2006.Giblett, Rod. Postmodern Wetlands: Culture, History, Ecology. Edinburgh: Edinburgh UP, 1996.———. The Body of Nature and Culture. Houndmills: Palgrave Macmillan, 2008.———. Landscapes of Culture and Nature. Houndmills: Palgrave Macmillan, 2009.———. People and Places of Nature and Culture. Bristol: Intellect Books, 2011.———. Canadian Wetlands: Place and People. Bristol: Intellect Books, forthcoming 2014.Hirst, Paul, and Penny Woolley. “The Social Formation and Maintenance of Human Attributes.” Social Relations and Human Attributes. London: Tavistock, 1982. 23–31.Kelman, Ari. A River and its City: The Nature of Landscape in New Orleans. Berkeley: U of California P, 2006.Muecke, Stephen. “Hurricane Katrina and the Rhetoric of Natural Disasters.” Fresh Water: New Perspectives on Water in Australia. Eds. Emily Potter, Alison Mackinnon, Stephen McKenzie and Jennifer McKay. Carlton: Melbourne UP, 2005. 259–71.Polidori, Robert. After the Flood. Göttingen: Steidl, 2006.Smith, P.D. City: A Guidebook for the Urban Age. London: Bloomsbury, 2012.Wilson, Anthony. Shadow and Shelter: The Swamp in Southern Culture. Jackson: UP of Mississippi, 2006.
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18

Molnar, Tamas. "Spectre of the Past, Vision of the Future – Ritual, Reflexivity and the Hope for Renewal in Yann Arthus-Bertrand’s Climate Change Communication Film "Home"." M/C Journal 15, no. 3 (May 3, 2012). http://dx.doi.org/10.5204/mcj.496.

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About half way through Yann Arthus-Bertrand’s film Home (2009) the narrator describes the fall of the Rapa Nui, the indigenous people of the Easter Islands. The narrator posits that the Rapa Nui culture collapsed due to extensive environmental degradation brought about by large-scale deforestation. The Rapa Nui cut down their massive native forests to clear spaces for agriculture, to heat their dwellings, to build canoes and, most importantly, to move their enormous rock sculptures—the Moai. The disappearance of their forests led to island-wide soil erosion and the gradual disappearance of arable land. Caught in the vice of overpopulation but with rapidly dwindling basic resources and no trees to build canoes, they were trapped on the island and watched helplessly as their society fell into disarray. The sequence ends with the narrator’s biting remark: “The real mystery of the Easter Islands is not how its strange statues got there, we know now; it's why the Rapa Nui didn't react in time.” In their unrelenting desire for development, the Rapa Nui appear to have overlooked the role the environment plays in maintaining a society. The island’s Moai accompanying the sequence appear as memento mori, a lesson in the mortality of human cultures brought about by their own misguided and short-sighted practices. Arthus-Bertrand’s Home, a film composed almost entirely of aerial photographs, bears witness to present-day environmental degradation and climate change, constructing society as a fragile structure built upon and sustained by the environment. Home is a call to recognise how contemporary practices of post-industrial societies have come to shape the environment and how they may impact the habitability of Earth in the near future. Through reflexivity and a ritualised structure the text invites spectators to look at themselves in a new light and remake their self-image in the wake of global environmental risk by embracing new, alternative core practices based on balance and interconnectedness. Arthus-Bertrand frames climate change not as a burden, but as a moment of profound realisation of the potential for change and humans ability to create a desirable future through hope and our innate capacity for renewal. This article examines how Arthus-Bertrand’s ritualised construction of climate change aims to remake viewers’ perception of present-day environmental degradation and investigates Home’s place in contemporary climate change communication discourse. Climate change, in its capacity to affect us globally, is considered a world risk. The most recent peer-reviewed Synthesis Report of the Intergovernmental Panel on Climate Change suggests that the concentration of atmospheric greenhouse gases has increased markedly since human industrialisation in the 18th century. Moreover, human activities, such as fossil fuel burning and agricultural practices, are “very likely” responsible for the resulting increase in temperature rise (IPPC 37). The increased global temperatures and the subsequent changing weather patterns have a direct and profound impact on the physical and biological systems of our planet, including shrinking glaciers, melting permafrost, coastal erosion, and changes in species distribution and reproduction patterns (Rosenzweig et al. 353). Studies of global security assert that these physiological changes are expected to increase the likelihood of humanitarian disasters, food and water supply shortages, and competition for resources thus resulting in a destabilisation of global safety (Boston et al. 1–2). Human behaviour and dominant practices of modernity are now on a path to materially impact the future habitability of our home, Earth. In contemporary post-industrial societies, however, climate change remains an elusive, intangible threat. Here, the Arctic-bound species forced to adapt to milder climates or the inhabitants of low-lying Pacific islands seeking refuge in mainland cities are removed from the everyday experience of the controlled and regulated environments of homes, offices, and shopping malls. Diverse research into the mediated and mediatised nature of the environment suggests that rather than from first-hand experiences and observations, the majority of our knowledge concerning the environment now comes from its representation in the mass media (Hamilton 4; Stamm et al. 220; Cox 2). Consequently the threat of climate change is communicated and constructed through the news media, entertainment and lifestyle programming, and various documentaries and fiction films. It is therefore the construction (the representation of the risk in various discourses) that shapes people’s perception and experience of the phenomenon, and ultimately influences behaviour and instigates social response (Beck 213). By drawing on and negotiating society’s dominant discourses, environmental mediation defines spectators’ perceptions of the human-nature relationship and subsequently their roles and responsibilities in the face of environmental risks. Maxwell Boykoff asserts that contemporary modern society’s mediatised representations of environmental degradation and climate change depict the phenomena as external to society’s primary social and economic concerns (449). Julia Corbett argues that this is partly because environmental protection and sustainable behaviour are often at odds with the dominant social paradigms of consumerism, economic growth, and materialism (175). Similarly, Rowan Howard-Williams suggests that most media texts, especially news, do not emphasise the link between social practices, such as consumerist behaviour, and their environmental consequences because they contradict dominant social paradigms (41). The demands contemporary post-industrial societies make on the environment to sustain economic growth, consumer culture, and citizens’ comfortable lives in air-conditioned homes and offices are often left unarticulated. While the media coverage of environmental risks may indeed have contributed to “critical misperceptions, misleading debates, and divergent understandings” (Boykoff 450) climate change possesses innate characteristics that amplify its perception in present-day post-industrial societies as a distant and impersonal threat. Climate change is characterised by temporal and spatial de-localisation. The gradual increase in global temperature and its physical and biological consequences are much less prominent than seasonal changes and hence difficult to observe on human time-scales. Moreover, while research points to the increased probability of extreme climatic events such as droughts, wild fires, and changes in weather patterns (IPCC 48), they take place over a wide range of geographical locations and no single event can be ultimately said to be the result of climate change (Maibach and Roser-Renouf 145). In addition to these observational obstacles, political partisanship, vested interests in the current status quo, and general resistance to profound change all play a part in keeping us one step removed from the phenomenon of climate change. The distant and impersonal nature of climate change coupled with the “uncertainty over consequences, diverse and multiple engaged interests, conflicting knowledge claims, and high stakes” (Lorenzoni et al. 65) often result in repression, rejection, and denial, removing the individual’s responsibility to act. Research suggests that, due to its unique observational obstacles in contemporary post-industrial societies, climate change is considered a psychologically distant event (Pawlik 559), one that is not personally salient due to the “perceived distance and remoteness [...] from one’s everyday experience” (O’Neill and Nicholson-Cole 370). In an examination of the barriers to behaviour change in the face of psychologically distant events, Robert Gifford argues that changing individuals’ perceptions of the issue-domain is one of the challenges of countering environmental inertia—the lack of initiative for environmentally sustainable social action (5). To challenge the status quo a radically different construction of the environment and the human-nature relationship is required to transform our perception of global environmental risks and ultimately result in environmentally consequential social action. Yann Arthus-Bertrand’s Home is a ritualised construction of contemporary environmental degradation and climate change which takes spectators on a rite of passage to a newfound understanding of the human-nature relationship. Transformation through re-imagining individuals’ roles, responsibilities, and practices is an intrinsic quality of rituals. A ritual charts a subjects path from one state of consciousness to the next, resulting in a meaningful change of attitudes (Deflem 8). Through a lifelong study of African rituals British cultural ethnographer Victor Turner refined his concept of rituals in a modern social context. Turner observed that rituals conform to a three-phased processural form (The Ritual Process 13–14). First, in the separation stage, the subjects are selected and removed from their fixed position in the social structure. Second, they enter an in-between and ambiguous liminal stage, characterised by a “partial or complete separation of the subject from everyday existence” (Deflem 8). Finally, imbued with a new perspective of the outside world borne out of the experience of reflexivity, liminality, and a cathartic cleansing, subjects are reintegrated into the social reality in a new, stable state. The three distinct stages make the ritual an emotionally charged, highly personal experience that “demarcates the passage from one phase to another in the individual’s life-cycle” (Turner, “Symbols” 488) and actively shapes human attitudes and behaviour. Adhering to the three-staged processural form of the ritual, Arthus-Bertrand guides spectators towards a newfound understanding of their roles and responsibilities in creating a desirable future. In the first stage—the separation—aerial photography of Home alienates viewers from their anthropocentric perspectives of the outside world. This establishes Earth as a body, and unearths spectators’ guilt and shame in relation to contemporary world risks. Aerial photography strips landscapes of their conventional qualities of horizon, scale, and human reference. As fine art photographer Emmet Gowin observes, “when one really sees an awesome, vast place, our sense of wholeness is reorganised [...] and the body seems always to diminish” (qtd. in Reynolds 4). Confronted with a seemingly infinite sublime landscape from above, the spectator’s “body diminishes” as they witness Earth’s body gradually taking shape. Home’s rushing rivers of Indonesia are akin to blood flowing through the veins and the Siberian permafrost seems like the texture of skin in extreme close-up. Arthus-Bertrand establishes a geocentric embodiment to force spectators to perceive and experience the environmental degradation brought about by the dominant social practices of contemporary post-industrial modernity. The film-maker visualises the maltreatment of the environment through suggested abuse of the Earth’s body. Images of industrial agricultural practices in the United States appear to leave scratches and scars on the landscape, and as a ship crosses the Arctic ice sheets of the Northwest Passage the boat glides like the surgeon’s knife cutting through the uppermost layer of the skin. But the deep blue water that’s revealed in the wake of the craft suggests a flesh and body now devoid of life, a suffering Earth in the wake of global climatic change. Arthus-Bertrand’s images become the sublime evidence of human intervention in the environment and the reflection of present-day industrialisation materially altering the face of Earth. The film-maker exploits spectators’ geocentric perspective and sensibility to prompt reflexivity, provide revelations about the self, and unearth the forgotten shame and guilt in having inadvertently caused excessive environmental degradation. Following the sequences establishing Earth as the body of the text Arthus-Bertrand returns spectators to their everyday “natural” environment—the city. Having witnessed and endured the pain and suffering of Earth, spectators now gaze at the skyscrapers standing bold and tall in the cityscape with disillusionment. The pinnacles of modern urban development become symbols of arrogance and exploitation: structures forced upon the landscape. Moreover, the images of contemporary cityscapes in Home serve as triggers for ritual reflexivity, allowing the spectator to “perceive the self [...] as a distanced ‘other’ and hence achieve a partial ‘self-transcendence’” (Beck, Comments 491). Arthus-Bertrand’s aerial photographs of Los Angeles, New York, and Tokyo fold these distinct urban environments into one uniform fusion of glass, metal, and concrete devoid of life. The uniformity of these cultural landscapes prompts spectators to add the missing element: the human. Suddenly, the homes and offices of desolate cityscapes are populated by none other than us, looking at ourselves from a unique vantage point. The geocentric sensibility the film-maker invoked with the images of the suffering Earth now prompt a revelation about the self as spectators see their everyday urban environments in a new light. Their homes and offices become blemishes on the face of the Earth: its inhabitants, including the spectators themselves, complicit in the excessive mistreatment of the planet. The second stage of the ritual allows Arthus-Bertrand to challenge dominant social paradigms of present day post-industrial societies and introduce new, alternative moral directives to govern our habits and attitudes. Following the separation, ritual subjects enter an in-between, threshold stage, one unencumbered by the spatial, temporal, and social boundaries of everyday existence. Turner posits that a subjects passage through this liminal stage is necessary to attain psychic maturation and successful transition to a new, stable state at the end of the ritual (The Ritual Process 97). While this “betwixt and between” (Turner, The Ritual Process 95) state may be a fleeting moment of transition, it makes for a “lived experience [that] transforms human beings cognitively, emotionally, and morally.” (Horvath et al. 3) Through a change of perceptions liminality paves the way toward meaningful social action. Home places spectators in a state of liminality to contrast geocentric and anthropocentric views. Arthus-Bertrand contrasts natural and human-made environments in terms of diversity. The narrator’s description of the “miracle of life” is followed by images of trees seemingly defying gravity, snow-covered summits among mountain ranges, and a whale in the ocean. Grandeur and variety appear to be inherent qualities of biodiversity on Earth, qualities contrasted with images of the endless, uniform rectangular greenhouses of Almeria, Spain. This contrast emphasises the loss of variety in human achievements and the monotony mass-production brings to the landscape. With the image of a fire burning atop a factory chimney, Arthus-Bertrand critiques the change of pace and distortion of time inherent in anthropocentric views, and specifically in contemporary modernity. Here, the flames appear to instantly eat away at resources that have taken millions of years to form, bringing anthropocentric and geocentric temporality into sharp contrast. A sequence showing a night time metropolis underscores this distinction. The glittering cityscape is lit by hundreds of lights in skyscrapers in an effort, it appears, to mimic and surpass daylight and thus upturn the natural rhythm of life. As the narrator remarks, in our present-day environments, “days are now the pale reflections of nights.” Arthus-Bertrand also uses ritual liminality to mark the present as a transitory, threshold moment in human civilisation. The film-maker contrasts the spectre of our past with possible visions of the future to mark the moment of now as a time when humanity is on the threshold of two distinct states of mind. The narrator’s descriptions of contemporary post-industrial society’s reliance on non-renewable resources and lack of environmentally sustainable agricultural practices condemn the past and warn viewers of the consequences of continuing such practices into the future. Exploring the liminal present Arthus-Bertrand proposes distinctive futurescapes for humankind. On the one hand, the narrator’s description of California’s “concentration camp style cattle farming” suggests that humankind will live in a future that feeds from the past, falling back on frames of horrors and past mistakes. On the other hand, the example of Costa Rica, a nation that abolished its military and dedicated the budget to environmental conservation, is recognition of our ability to re-imagine our future in the face of global risk. Home introduces myths to imbue liminality with the alternative dominant social paradigm of ecology. By calling upon deep-seated structures myths “touch the heart of society’s emotional, spiritual and intellectual consciousness” (Killingsworth and Palmer 176) and help us understand and come to terms with complex social, economic, and scientific phenomena. With the capacity to “pattern thought, beliefs and practices,” (Maier 166) myths are ideal tools in communicating ritual liminality and challenging contemporary post-industrial society’s dominant social paradigms. The opening sequence of Home, where the crescent Earth is slowly revealed in the darkness of space, is an allusion to creation: the genesis myth. Accompanied only by a gentle hum our home emerges in brilliant blue, white, and green-brown encompassing most of the screen. It is as if darkness and chaos disintegrated and order, life, and the elements were created right before our eyes. Akin to the Earthrise image taken by the astronauts of Apollo 8, Home’s opening sequence underscores the notion that our home is a unique spot in the blackness of space and is defined and circumscribed by the elements. With the opening sequence Arthus-Bertrand wishes to impart the message of interdependence and reliance on elements—core concepts of ecology. Balance, another key theme in ecology, is introduced with an allusion to the Icarus myth in a sequence depicting Dubai. The story of Icarus’s fall from the sky after flying too close to the sun is a symbolic retelling of hubris—a violent pride and arrogance punishable by nemesis—destruction, which ultimately restores balance by forcing the individual back within the limits transgressed (Littleton 712). In Arthus-Bertrand’s portrayal of Dubai, the camera slowly tilts upwards on the Burj Khalifa tower, the tallest human-made structure ever built. The construction works on the tower explicitly frame humans against the bright blue sky in their attempt to reach ever further, transgressing their limitations much like the ill-fated Icarus. Arthus-Bertrand warns that contemporary modernity does not strive for balance or moderation, and with climate change we may have brought our nemesis upon ourselves. By suggesting new dominant paradigms and providing a critique of current maxims, Home’s retelling of myths ultimately sees spectators through to the final stage of the ritual. The last phase in the rite of passage “celebrates and commemorates transcendent powers,” (Deflem 8) marking subjects’ rebirth to a new status and distinctive perception of the outside world. It is at this stage that Arthus-Bertrand resolves the emotional distress uncovered in the separation phase. The film-maker uses humanity’s innate capacity for creation and renewal as a cathartic cleansing aimed at reconciling spectators’ guilt and shame in having inadvertently exacerbated global environmental degradation. Arthus-Bertrand identifies renewable resources as the key to redeeming technology, human intervention in the landscape, and finally humanity itself. Until now, the film-maker pictured modernity and technology, evidenced in his portrayal of Dubai, as synonymous with excess and disrespect for the interconnectedness and balance of elements on Earth. The final sequence shows a very different face of technology. Here, we see a mechanical sea-snake generating electricity by riding the waves off the coast of Scotland and solar panels turning towards the sun in the Sahara desert. Technology’s redemption is evidenced in its ability to imitate nature—a move towards geocentric consciousness (a lesson learned from the ritual’s liminal stage). Moreover, these human-made structures, unlike the skyscrapers earlier in the film, appear a lot less invasive in the landscape and speak of moderation and union with nature. With the above examples Arthus-Bertrand suggests that humanity can shed the greed that drove it to dig deeper and deeper into the Earth to acquire non-renewable resources such as oil and coal, what the narrator describes as “treasures buried deep.” The incorporation of principles of ecology, such as balance and interconnectedness, into humanity’s behaviour ushers in reconciliation and ritual cleansing in Home. Following the description of the move toward renewable resources, the narrator reveals that “worldwide four children out of five attend school, never has learning been given to so many human beings” marking education, innovation, and creativity as the true inexhaustible resources on Earth. Lastly, the description of Antarctica in Home is the essence of Arthus-Bertrand’s argument for our innate capacity to create, not simply exploit and destroy. Here, the narrator describes the continent as possessing “immense natural resources that no country can claim for itself, a natural reserve devoted to peace and science, a treaty signed by 49 nations has made it a treasure shared by all humanity.” Innovation appears to fuel humankind’s transcendence to a state where it is capable of compassion, unification, sharing, and finally creating treasures. With these examples Arthus-Bertrand suggests that humanity has an innate capacity for creative energy that awaits authentic expression and can turn humankind from destroyer to creator. In recent years various risk communication texts have explicitly addressed climate change, endeavouring to instigate environmentally consequential social action. Home breaks discursive ground among them through its ritualistic construction which seeks to transform spectators’ perception, and in turn roles and responsibilities, in the face of global environmental risks. Unlike recent climate change media texts such as An Inconvenient Truth (2006), The 11th Hour (2007), The Age of Stupid (2009), Carbon Nation (2010) and Earth: The Operator’s Manual (2011), Home eludes simple genre classification. On the threshold of photography and film, documentary and fiction, Arthus-Bertrand’s work is best classified as an advocacy film promoting public debate and engagement with a universal concern—the state of the environment. The film’s website, available in multiple languages, contains educational material, resources to organise public screenings, and a link to GoodPlanet.info: a website dedicated to environmentalism, including legal tools and initiatives to take action. The film-maker’s approach to using Home as a basis for education and raising awareness corresponds to Antonio Lopez’s critique of contemporary mass-media communications of global risks. Lopez rebukes traditional forms of mediatised communication that place emphasis on the imparting of knowledge and instead calls for a participatory, discussion-driven, organic media approach, akin to a communion or a ritual (106). Moreover, while texts often place a great emphasis on the messenger, for instance Al Gore in An Inconvenient Truth, Leonardo DiCaprio in The 11th Hour, or geologist Dr. Richard Alley in Earth: The Operator’s Manual, Home’s messenger remains unseen—the narrator is only identified at the very end of the film among the credits. The film-maker’s decision to forego a central human character helps dissociate the message from the personality of the messenger which aids in establishing and maintaining the geocentric sensibility of the text. Finally, the ritual’s invocation and cathartic cleansing of emotional distress enables Home to at once acknowledge our environmentally destructive past habits and point to a hopeful, environmentally sustainable future. While The Age of Stupid mostly focuses on humanity’s present and past failures to respond to an imminent environmental catastrophe, Carbon Nation, with the tagline “A climate change solutions movie that doesn’t even care if you believe in climate change,” only explores the potential future business opportunities in turning towards renewable resources and environmentally sustainable practices. The three-phased processural form of the ritual allows for a balance of backward and forward-looking, establishing the possibility of change and renewal in the face of world risk. The ritual is a transformative experience. As Turner states, rituals “interrupt the flow of social life and force a group to take cognizance of its behaviour in relation to its own values, and even question at times the value of those values” (“Dramatic Ritual” 82). Home, a ritualised media text, is an invitation to look at our world, its dominant social paradigms, and the key element within that world—ourselves—with new eyes. It makes explicit contemporary post-industrial society’s dependence on the environment, highlights our impact on Earth, and reveals our complicity in bringing about a contemporary world risk. The ritual structure and the self-reflexivity allow Arthus-Bertrand to transform climate change into a personally salient issue. This bestows upon the spectator the responsibility to act and to reconcile the spectre of the past with the vision of the future.Acknowledgments The author would like to thank Dr. Angi Buettner whose support, guidance, and supervision has been invaluable in preparing this article. 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