This data set consists of a geo-referenced digital map and attribute data derived from the publication 'Permafrost map of Alaska'. The map is presented at a scale of 1 to 2,500,000 and shows the ...

Joshua Stevens/NASA Red areas are talik, or unfrozen ground above permafrost, expected in the 2050s in five northern Alaska parks. Permafrost thickness varies with climatic conditions and ...

It goes like this: beneath the ground is thick permafrost — a jumble of soil, rocks and sediment held together by ice. Underneath this sits a layer of “methane hydrates,” a solid form of ...

The frozen ground beneath these “boreal” forests and treeless plains or “tundra” is thawing, fast. That’s a problem because the permafrost holds enormous amounts of vulnerable carbon, more than twice ...

Permafrost is ground that remains permanently frozen, typically year-round, for extended periods – often spanning decades, centuries, or even millennia. Found mostly in the Earth’s northern regions, ...

Lakes are fascinating geographical features, defined as sizable bodies of standing or slowly moving water contained inland.

Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States ...

“It’s a troublesome area with a lot of discontinuous permafrost and without money to take care of that area, the Yukon has been struggling to keep up maintenance,” explained John Perreault, a public ...

That’s a problem because the permafrost holds enormous amounts of vulnerable carbon, more than twice as much carbon as is already present in the atmosphere. Some of that carbon is now on the move.