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Greenland Ice Sheet is More Sensitive to Climate Change than Previously Understood

Greenland Ice Sheet is More Sensitive to Climate Change than Previously Understood
Written by AZoCleantechMar 16 2021
In 1966, US Army scientists drilled down through nearly a mile of ice in northwestern Greenland and pulled up a fifteen-foot-long tube of dirt from the bottom. Then this frozen sediment was lost in a freezer for decades. It was accidentally rediscovered in 2017.
In 2019, University of Vermont scientist Andrew Christ looked at it through his microscope and couldn t believe what he was seeing: twigs and leaves instead of just sand and rock. That suggested that the ice was gone in the recent geologic past and that a vegetated landscape, perhaps a boreal forest, stood where a mile-deep ice sheet as big as Alaska stands today. ....

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Scientists stunned to discover plants beneath mile-deep Greenland ice

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VIDEO: Scientists were stunned to find frozen plant fossils twigs and leaves preserved under a mile of ice on Greenland. The discovery, explained in this video, helps confirm a new and troubling understanding.
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Credit: Quincy Massey-Bierman
In 1966, US Army scientists drilled down through nearly a mile of ice in northwestern Greenland and pulled up a fifteen-foot-long tube of dirt from the bottom. Then this frozen sediment was lost in a freezer for decades. It was accidentally rediscovered in 2017.
In 2019, University of Vermont scientist Andrew Christ looked at it through his microscope and couldn t believe what he was seeing: twigs and leaves instead of just sand and rock. That suggested that the ice was gone in the recent geologic past and that a vegetated landscape, perhaps a boreal forest, stood where a mile-deep ice sheet as big as Alaska stands today. ....

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