Antarctic Lakes Visible 'Beacon' of Global Warming

20-year study has revealed dramatic changes in Signy Island's lakes caused by a 1.8-degree Fahrenheit rise in air temperature.

Published: 25-Jan-2002

WASHINGTON (Reuters) - An unexpectedly rapid warming of lakes on a desolate Antarctic island provides compelling evidence of the environmental impact wrought by rising global temperatures, scientists said on Thursday.

Writing in the journal Science, British and Canadian scientists said a 20-year study has revealed dramatic changes in Signy Island's lakes caused by a 1.8-degree Fahrenheit rise in air temperature.

This increase has triggered a series of changes in the lakes on the island, located 435 miles northeast of the Antarctic Peninsula. The scientists consider polar lakes to be early detectors of change wrought by global warming.

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