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Arctic Entering Its Hottest Period in 2.5 Million Years as Last Remnants of Laurentide Melt Away

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“This is the disappearance of a feature from the last glacial age, which would have probably survived without anthropogenic greenhouse gas emissions.” — Adrien Gilbert

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There are many ways to tell the Earth’s temperature. One is by measuring how warm the atmosphere is near the surface. Another is to track the heat content of the world’s oceans. Still another is by taking account of melting glaciers and comparing thaw lines with times in the geological past.

And according to new research, the present state of the Barnes Ice Cap — which is the last tiny remnant of the once vast Laurentide Ice Sheet — tells a tale of heat not seen in 2.5 million years.

(NASA satellite shot of the last melting remnant of the Laurentide Ice sheet on August 30 of 2016. Want to see a time lapse of Barnes Ice Cap melt from 1984…

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March 24, 2017 - Posted by | Uncategorized

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