The Arctic Circle Essay Research Paper Ditions — страница 2

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ability to produce sperm, the most efficient food gatherers are sterilized first leaving profound impacts on the evolution of the animals. T rmer Soviet Union, Eastern Europe and North America. DDT long banned in Canada and the United States is used extensively in Central and South America and is a threatening pollutant of the Arctic. A recent study traced DDT and PCBs from the Caribbean (including industrial Merida) up the Mississippi Valley to Southwestern Ontario and presumably beyond to the Arctic. Canadian and United States industries fleeing to Mexico for cheap labour and lax environmental controls are clearly threatening the very existence of Canadians and polar animals. On Goodfriday 1987 the Exxon Valdez ran aground in the Prince William Sound, spilling 11 million

gallons of crude oil into the surrounding ocean. Prevailing winds and currents produced a slick on 1500km of pristine coastline. The damage caused by an oil tanker unlicensed to be so close to the coast caused the worst ecological damage in the area to date:980 dead Sea Otters146 dead Bald Eagles 33,126 other seabirds killed through suffocation, poisoning or exposur fe Range the Arctic National Wildlife Refuge, and enlarged the Refuge to 19 million acres, most of the former Range a part of the Wilderness Preservation System.There is opposition towards this:- worldwide consumption of oil is growing. There is pressure on the US Governmetn from lobbyist groups from the oil industry to find new sites of extraction for oil and other raw materials to reduce it.s reliance on the OPEC

countries and also to continue the present day growth in it.s economy. The American Petroleum Institute claims the coastal plain of the Arctic National Wildlife Refuge might produce as much as 250 thousand barrels of crude oil per day, that is about 105 million barrels per year.In November, 1991, legislation that would have opened the Arctic Refuge to drilling reached the Senate floor, but was defeated on a procedural vote. A February, 1992, effort to add it to a Senate energy bill was dropped due to limited support. However, the drilling proposal could be brought up again at any time.. erica. DDT long banned in Canada and the United States is used extensively in Central and South America and is a threatening pollutant of the Arctic. A recent study traced DDT and PCBs from the

Caribbean (including industrial Merida) up the Mississippi Valley to Southwestern Ontario and presumably beyond to the Arctic. Canadian and United States industries fleeing to Mexico for cheap labour and lax environmental controls are clearly threatening the very existence of Canadians and polar animals. Bibliography: Cohen S (1994). Mackenzie Basin Impact Study (MBIS). Alaska.Crawford R (1990). Effects of Human Activity on High Latitude Biodiversity (HILBIO) – on behalf of UK NERC and ESRC. HMSO, London.Cummins J E(1992) “Poisoning The Northern Environment” University of Western Ontario, London, Ontario USA Goudie A (1994) The Human Impact on the Natural Environment, 4th Edition, Blackwell, Oxford. Goudie A (1993) The Nature of the Environment, 3rd Edition, Blackwell,

Oxford. Kalland A Nord