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11 U.S. species endangered by climate change

By: Bryan Nelson on Jan. 4, 2010, 11:10 a.m.
Polar Bears

Photo: Wiki Commons

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Polar bears

Last, but certainly not least on the list, are the polar bears. The polar bear was the first mammal to be listed as threatened under the Endangered Species Act due primarily to global warming. Its habitat is literally disappearing beneath its feet due to shrinking sea ice levels. Global warming will affect the Arctic more than any other habitat, with temperatures likely to increase at about twice the global average.