The pipeline will be buried in a trench, mostly in permafrost.' And we looked at each other in sort of a manner of disbelief." — Art Lachenbruch, U.S. Geological Survey Art Lachenbruch was a ...

Permafrost — the permanently frozen ground that underlies much of the Arctic land surface — is thawing in many parts of the Arctic. [1] As permafrost thaws, it releases the powerful greenhouse gas ...

As permafrost laced with buried ice thaws, the ground collapses, forming craters or lakes. This story appears in the September 2019 issue of National Geographic magazine. Sergey Zimov, right ...

Other reasons may include vegetation dieback (the gradual death of plant tissue) and the growing frequency of permafrost thaw. In tundra regions, average annual soil temperatures are trending toward ...

Instead, they were delayed by several thousand years, until permafrost began thawing. The researchers say their findings indicate that thawing permafrost was an important trigger of landslides in ...

Melting Arctic permafrost is creating ongoing challenges for communities across the North, and a new study is shedding light on how those threats are perceived from region to region. Understanding ...