Giant Mine, near the subarctic city of Yellowknife, was once one of the biggest gold mines in the Northwest Territories, said ...

Better knowledge and mapping of existing infrastructure is leading to a new estimate of future thaw costs under varying ...

Permafrost temperatures globally have been rising for half a century. On Alaska’s North Slope, they spiked 11 degrees Fahrenheit in 30 years. Localized thawing of permafrost, especially in ...

As warming conditions create new operating pathways in the Arctic and military training increasingly emphasizes proficiency in the cold, the Army Corps of Engineers' Engineer Research and ...

In Alaska, some rivers are already changing from "clean, clear blue to a rusty orange", due to the run-off of "toxic metals" released by the permafrost, including iron, zinc, copper, nickel and ...

“Environmental warming is really doing a number on the permafrost,” says Tom Ravens, a civil engineering professor at University of Alaska Anchorage and an expert on the Arctic coast.

In the last few years, seasonal transitions in the Yukon-Kuskokwim Delta have become more disruptive. Now every spring, when ...

Mercury levels in Nunavik’s melting permafrost are not as high as expected, according to results from a study recently ...

To see the melting for myself, I travel to Fairbanks, Alaska, and from there north to Prudhoe Bay, where two cold-adapted scientists have been probing the permafrost. Tom Osterkamp, a geophysicist ...