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Geologists Drill into Antarctica and Find Troubling Signs for Ice Sheets' Future

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avatar Geologists Drill into Antarctica and Find Troubling Signs for Ice Sheets' Future
April 20, 2010 07:29PM
ERICE, Italy—If you think of Earth's poles as fraternal twins, the Arctic has been the wild one in recent years, while the Antarctic has been a steady plodder. Withered by summer heat, Arctic sea ice has shrunk to record low coverage several times since 2005, only to rebound to within 95 percent of its long-term average extent this winter. By comparison, Antarctica, with some 90 percent of the world's glacial reserves, has generally shed ice in more stately fashion.

http://www.scientificamerican.com/article.cfm?id=antarctica-andrill-ice-sheets
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