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Greenland Glaciers Dumping More Ice

Warmer Temperatures Making Greenland's Glaciers Dump Twice As Much Ice Into the Atlantic Ocean. Warmer temperatures over the past decade have sped up the march of Greenland's southern glaciers to the Atlantic Ocean, where the ice and water they spill contribute more to the global rise in sea levels than previously thought. Those faster-moving glaciers now dump in a year twice as much ice into the Atlantic as they did in 1996, researchers said Thursday. The resulting icebergs, along with increased melting of Greenland's ice sheet, could account for nearly 17 percent of the estimated one-tenth of an inch annual rise in global sea levels, or twice what was previously believed, said Eric Rignot of NASA's Jet Propulsion Laboratory in Pasadena, Calif. An increase in surface air temperatures appears to be causing the glaciers to flow faster, albeit at the still-glacial pace of eight miles to nine miles a year at their fastest clip, and discharge increased amounts of ice into the Atlantic. (Read More... ABCNews.com)

This undated photo provided by the journal Science shows East Greenland icebergs. Large numbers of bergs are calved each year from the fast-flowing terminus of Kangerdlussuaq Glacier, East Greenland. Iceberg production is a major form of mass loss from ice sheets. (AP Photo/ho/J.A. Dowdeswell, Science)

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