America's Ice Age

Why does Earth have ice ages, and when is the next one due? In a journey through time, this program charts the progress of different glaciations to depict how ice shaped modern North America.

Other Authors: Films for the Humanities & Sciences (Firm), Infobase.
Format: Video
Language: English
Published: New York, N.Y. : Infobase, [2011], c2010.
Physical Description: 1 streaming video file (45 min.) : sd., col.
Series: How the Earth Was Made.
Subjects:

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