Is There A Ticking Time Bomb Below The Arctic?
The Permafrost Tunnel Research Facility, dug in the mid-1960s, allows scientists a three-dimensional look at frozen ground. Kate Ramsayer/NASA hide caption toggle caption Kate Ramsayer/NASA The Permafrost Tunnel Research Facility, dug in the mid-1960s, allows scientists a three-dimensional look at frozen ground. Kate Ramsayer/NASA A short drive north of Fairbanks, Alaska, there’s a red shed…

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