In the Arctic, landslide-like features known as mega retrogressive thaw slumps are threatening infrastructure, altering regional biogeochemistry, and emitting carbon. Sometimes eroding more than 1 ...

Landslides on an island in the Canadian Arctic have risen sixtyfold since the mid-1980s due to the thawing permafrost, according to scientists studying the effects of climate change. The ...

Permafrost thaw slumps in the western Canadian Arctic are releasing record amounts of mercury into waterways, according to new research by University of Alberta ecologists.

The permafrost thawing that is leading to the release of greenhouse gases is intensifying across the Arctic. ... In 1984, the island had 60 active slumps. By 2013, there were 4,000.

But abrupt permafrost thaw happens on the scale of meters over months or years. ... “Whatever was at the surface just slumps right down to the bottom. So you get these pits on the land, ...

Our earth's permafrost is thawing and it could change our entire climate. ... - And there are several hundreds of thousands of these thaw slumps across the Arctic. It's a really huge number.

These “thaw slumps” measured several hundred feet wide and just as deep. Jaden Cockney, 17, clambered down the side of one slump as his boss, William Dillon, looked on cautiously.

When the permafrost thaws, it releases microbes that consume organic matter. This, in turn, causes the release of CO2 and methane into the atmosphere. And it goes […] ...

It's the world's largest "retrogressive thaw slump," a pit that forms when permafrost thaw causes the ground to cave in, creating a landslide as the earth at its edges slumps into the pit.

As they expand and release long-frozen organic carbon, thaw slumps become part of the permafrost positive feedback loop, where the carbon dioxide and methane they emit contributes to global warming.