The Younger Dryas refers to a(n)
A) 400 year, from A.D. 800 to 1200, period characterized by warmer than normal conditions in the North Atlantic region (e.g., Greenland and Iceland).
B) the current period of unprecedented warming that has occurred since 1980.
C) global cooling episode, lasting from approximately A.D. 1250 to 1850.
D) brief return to near-glacial conditions during the transition period from the last glacial period to the present interglacial period.
E) interglacial period, characterized by a general warming trend, lasting since the last glacial maximum (LGM) to the present.
D
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