Permafrost covers about 10 percent of the earth. If the permafrost thaws, the ground loses its stability. Coastal areas are then at risk of severe corrosion and irretrievable land loss, and the thawing ground releases even more greenhouse gases. Image: Lutz...
More than a broken-windows problem (Photo: Alec Luhn) A quarter of the soil in the Northern Hemisphere is permafrost, a lot of it above the Arctic Circle, where temperatures are now reported to be rising at thrice the global average. That may prove a costly cocktail....
