Because of global warming, the permafrost (a layer of permanently frozen ground) is melting.
Places with permafrost have nearly the same amount of precipitation as a desert – less than ten inches a year. The permafrost is supposed to hold that moisture up near the surface so that in the spring when the top several inches thaws, it can provide a fresh water wetlands habitat for birds, bears, wolves, caribou, and other animals. When the permafrost thaws to a slush, it becomes more of a sponge than a bowl for the precipitation… …and the animals suffer.
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