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    'Fossilized Rivers' Reveal Clues About Disappearing Glaciers

    By By Becky Oskin, Staff Writer
    February 04, 2014, 2:27:32 AM EST

    An amazing landscape left behind by melting ice sheets offers clues to the future of Greenland's shrinking glaciers, a new study suggests.

    The incredible terrain is in northern Canada, which is ridged with thousands of eskers — the sinuous, gravelly remains of streams and rivers that flowed beneath the ice. Canada was once buried beneath miles of ice, similar to the way Greenland is today. Called the Laurentide Ice Sheet, this massive ice cap covered all of Canada and parts of the northern United States 15,000 years ago. When the Laurentide Ice Sheet started melting, the retreating ice left behind a record of its demise, such as the eskers, still visible on the Arctic tundra. Deciphering this record could provide a better forecast of the future of Greenland's changing ice sheet, scientists think.


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