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Greenland Ice Sheet Faces 'Tipping Point in 10 Years'; (Suzanne Goldenberg)

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global-warming-160Scientists warn that temperature rise of between 2C and 7C would cause ice to melt, resulting in 23ft rise in sea level

Aug. 11, 2010 -- WASHINGTON (Guardian) -- The entire ice mass of Greenland will disappear from the world map if temperatures rise by as little as 2C, with severe consequences for the rest of the world, a panel of scientists told Congress Tuesday.

Greenland shed its largest chunk of ice in nearly half a century last week, and faces an even grimmer future, according to Richard Alley, a geosciences professor at Pennsylvania State University

"Sometime in the next decade we may pass that tipping point which would put us warmer than temperatures that Greenland can survive," Alley told a briefing in Congress, adding that a rise in the range of 2C to 7C would mean the obliteration of Greenland's ice sheet.

The fall-out would be felt thousands of miles away from the Arctic, unleashing a global sea level rise of 23ft (7 metres), Alley warned. Low-lying cities such as New Orleans would vanish.

"What is going on in the Arctic now is the biggest and fastest thing that nature has ever done," he said.

READ MORE: Common Dreams

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  • Created
    Wednesday, August 11 2010
  • Last modified
    Wednesday, November 06 2013
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