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A look at past Ice Age eras that Earth has experienced throughout its existence; how the slightest changes in the planet's orbit and angle of rotation can bring them about; how long they can last, and when the Earth will endure another.
Første luftdato : Feb 10, 2009
Sidste luftdato : Mar 02, 2010
Episode : 26 Episode
Sæson : 2 Sæson
Kørselstid: 45 minutter
Studio: History
Cast: Corey Johnson
Mandskab:
