When was the last time Antarctica was ice-free?
Unlike today, Antarctica hasn’t constantly been covered in ice. (Image credit: David Merron Photography by means of Getty Images) Antarctica, which is almost 4 times the size of the United…
Read More »Unlike today, Antarctica hasn’t constantly been covered in ice. (Image credit: David Merron Photography by means of Getty Images) Antarctica, which is almost 4 times the size of the United…
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