The above image isn't a heat map, despite its bright colors ... a vast national park in the remote northern region of Alaska. As Arctic permafrost melts, toxic metals leach into several of ...

The Permafrost Tunnel north of Fairbanks, Alaska, was dug in the 1960s and is run by the U.S. Army’s Cold Regions Research and Engineering Laboratory. It is the site of much research into ...

Caption The left panel shows the near-surface permafrost extent (bluish area, overlaid on satellite imagery) estimated by the most commonly used pan-arctic map product for a site in Alaska. The ...