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Problem
# 1: How did Greenland receive its ice sheet?
Greenland has been in the polar zone longer than any other area in the north. When the Arctic Circle was centered at 73N 10E Greenland was within the polar zone. When the Arctic Circle was centered at 60N 83W Greenland again in the polar zone. Today
Greenland is still inside the polar except for the mini-ice
cap in the south which is a remnant of the
two previous Arctic Circles. Next
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