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Updates from NASA's IPY Site

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ARCTAS Blogging

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Updates from the Arctic

ARCTAS researchers are keeping the rest of us up-to-date on their progress in a blog hosted by Discovery.com.

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Bon Voyage!

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The SO GasEx Experiment

Scientists blog about their extended voyage off the Antarctic coast as part of a mission to study carbon dioxide levels in the ocean and atmosphere.

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Top Story

    Researchers Warm Up to Melt's Role in Greenland Ice Loss

    Scientists survey surface lakes brought about by seasonal melt of the Greenland Ice Sheet in July 2006.

    Scientists know that Greenland is losing ice. Much of Greenland's ice sheet is slow moving, creeping toward the ocean where the ice can calve off as icebergs. The landscape is also dumps ice into the ocean through outlet glaciers -- rivers of ice that channel through valleys of bedrock and move at least 10 times faster than the ice sheet. Whether or not summertime melt has a significant influence on the speed of these flows has been an endless topic of debate among scientists -- until now.

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    > View "Snow and Ice" archives, images and video

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