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Sudden shift in 'forcing' led to demise of Laurentide ice sheet

2015-06-23 19:02:00| Climate Ark Climate Change & Global Warming Newsfeed

ScienceDaily: A new study has found that the massive Laurentide ice sheet that covered Canada during the last ice age initially began shrinking through calving of icebergs, and then abruptly shifted into a new regime where melting on the continent took precedence, ultimately leading to the sheet's demise. Researchers say a shift in 'radiative forcing' began prior to 9,000 years ago and kicked the deglaciation into overdrive. The results are important, scientists say, because they may provide a clue to how ice...

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