Thinner sea ice and melting permafrost. Is it related to changes in the Earth's axis?
Permafrost thaw is affecting houses, roads, and ice cellars.
Beavers live in every province of Canada, every U.S. state and into northern Mexico. Range maps now need to be redrawn to include areas north of treeline in Alaska and Canada.
Residents were amazed to see lightning actually arching down to the ground.
Biologists are trying to determine what's ailing ringed seals that live off Alaska's Arctic coast. Scores of seals stranded on beaches this summer appeared to have skin lesions, and dozens have died.
Beetles seen moving around on geese
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