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Greenland’s ice sheets face new threat

Substantial warming well below ocean’s surface will pose risk in this century

By
12:33pm, July 6, 2011

Scientists have uncovered a potentially potent risk to Greenland’s ice sheets during the next century and beyond: rapidly warming deep water. The subsurface ocean off Greenland is now expected to warm at roughly double the rate that is projected for such waters globally, including off the coast of Antarctica.

Calling the ocean “the 900-pound gorilla of global warming and climate change,” oceanographer Josh Willis of NASA’s Jet Propulsion Laboratory in Pasadena, Calif., says he’s excited to finally see long-term climate projections homing in on the ocean’s role. “How the

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