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  Arctic Sea Ice Melting Faster, a Study Finds
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ContributorArmyDem 
Last EditedArmyDem  May 01, 2007 10:58am
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CategoryNews
MediaNewspaper - New York Times
News DateTuesday, May 1, 2007 04:00:00 PM UTC0:0
DescriptionBy ANDREW C. REVKIN
Published: May 1, 2007

Climate scientists may have significantly underestimated the power of global warming from human-generated heat-trapping gases to shrink the cap of sea ice floating on the Arctic Ocean, according to a new study of polar trends.

The study, published online today in Geophysical Research Letters, concluded that an open-water Arctic in summers could be more likely in this century than had been estimated in the latest international review of climate research released in February by the United Nations Intergovernmental Panel on Climate Change.

“There are huge changes going on,” said Julienne Stroeve, a lead author of the new study and a researcher at the National Snow and Ice Data Center in Boulder, Colo. “Just with warm waters entering the Arctic, combined with warming air temperatures, this is wreaking havoc on the sea ice, really.”

The intergovernmental panel concluded that if emissions of heat-trapping gases like carbon dioxide were not significantly reduced, the region could be end up bereft of floating ice in summers sometime between 2050 and the early decades of the next century.
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