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An Alaskan tunnel yields clues to Earth's fragile permafrost

pri   22 October 2015   USA   Alaska  

Time travel in science fiction novels is tricky if not completely unpredictable. But it is possible to at least peer into the past as some climate scientists in Alaska are doing.
Scientists are actively trying to understand what's happening to the Earth's permafrost, the frozen layer of organic material that covers much of the northern reaches of the planet.

So scientists in Alaska with the Army Corps of Engineers have dug a tunnel through some 40,000 years’ worth of permafrost.  The US Army’s Cold Regions Research and Engineering Laboratory maintains the research facility near Fairbanks, Alaska. It’s known as the Permafrost Tunnel.

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