Quote:
Originally Posted by Boreas
Also, as ice and snow disappear in the Arctic, there is a loss of reflectivity in the earth's surface. That causes solar radiation to warm the earth's surface more than normal.
John
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Ice and snow have not disappeared from the arctic. It might not be as deep, but it's still plenty white.
Also, as this winter much of the lower 48 has been unusually covered in white, reflectivity is increased across a vast area that normally absorbs lots of solar radiation (especially developed areas where pavement abounds), cooling the earth's surface.