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HomeWhat's on - "Memory Burns"Tags › Tag: Subsurface

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Ancient glacial melting shows that small amount of subsurface warming can trigger rapid collapse ...

Science and Society: Ancient Glacial Melting Shows That Small Amount of Subsurface Warming Can Trigger Rapid Collapse of Ice Shelves

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Gifted submitted 2011/8/2 18:02, published 2011/8/2 18:02 | 174 views
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http://www.sciencedaily.com/releases/2011/08/110801160231.htm


ScienceDaily (Aug. 2, 2011) An analysis of prehistoric "Heinrich events" that happened many thousands of years ago, creating mass discharges of icebergs into the North Atlantic Ocean, make it clear that very small amounts of subsurface warming of water can trigger a rapid collapse of ice shelves.

The findings, to be published this week in Proceedings of the National Academy of Sciences, provide historical evidence that warming of water by 3-4 degrees was enough to trigger these huge, episodic discharges of ice from the Laurentide Ice Sheet in what is now Canada.


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