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Greenland Ice Sheet |
Also found in: Wikipedia | 0.01 sec. |
Greenland Ice SheetSingle ice cap, Greenland. Covering about 80% of the island of Greenland, it is the largest ice mass in the Northern Hemisphere, second only to the Antarctic. It extends 1,570 mi (2,530 km) north to south, has a maximum width of 680 mi (1,094 km) near its northern margin, and an average thickness of about 5,000 ft (1,500 m). The ice sheet rises to two domes; the northern dome, reaching more than 10,000 ft (3,000 m), is its thickest and coldest point. In volume it contains 12% of the world's glacial ice. If it melted, the sea level would rise 20 ft (6 m). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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A team of scientists from the University of Texas at Austin noted in August, for instance, that the Greenland ice sheet is melting faster than anticipated. It would take centuries, if not millennia, to melt the Greenland ice sheet," says Overpeck. In Iceland and Greenland, glaciers have been in rapid retreat, with the Greenland ice sheet experiencing summertime surface melting over 16 percent more of its surface area since 1979. |
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