Recent evidence shows that the last time the northern coast of Greenland was ice free and considerably warmer than the present was... (poll 1083605)

Recent evidence shows that the last time the northern coast of Greenland was ice free and considerably warmer than the present was...

A ...in the Pliocene, 4.2 million years ago

B ...in the Pleistocene, 1.2 million years ago

C ...in the current interglacial, the Holocene, about 7000 years ago

D ...in the previous interglacial, the Eemian, 120,000 years ago

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