Arctic Warming and Polar Bears

Paper Summary:

This nine page paper examines why global warming has become the primary threat facing polar bears. The writer looks at the Arctic polar bear population, which has been estimated to be approximately twenty-five thousand, of which about fifteen-thousand are in Canada, and has been impacted in a number of negative ways by climate change caused by air pollution. For example, the writer notes studies which have documented measurable effects in the body sizes and reproductive success of bears at Hudson's Bay and in other Arctic regions, and data that indicates that these changes are due to gradual climate change in the Arctic because of global warming.

From the Paper:

"Based upon studies conducted over the last twenty years, many scientists have concluded that global warming has become the primary threat facing polar bears. The Arctic polar bear population, which has been estimated to be approximately twenty-five thousand, of which about fifteen-thousand are in Canada, has been impacted in a number of negative ways by climate change caused by air pollution. (Stirling 12) For example, studies have documented measurable effects in the body sizes and reproductive success of bears at Hudson's Bay and in other Arctic regions, and data indicates that these changes are due to gradual climate change in the Arctic because of global warming."

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