glacial period :

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glacial period

  • n  any period of time during which glaciers covered a large part of the earth's surface
News & Articles

  • Paradox of polar ice sheet formation solved
    The beginning of the last glacial period was characterized in the Northern hemisphere by significant accumulation of snow at high latitudes and the formation of a huge polar ice sheet. For climatologists this was paradoxical, since snowfall is always associated with high humidity and relatively moderate temperatures. Now, scientists have solved this paradox.
    Sept. 2, 2013 - Science Daily

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