Human World - S1.E4 - Faces of Earth
See how geologic and climatic changes have shaped human development and sparked human migration around the globe as ice ages retreated and advanced. Earth has shaped human evolution and now humans are shaping Earth. But it is a mistake to think human innovations have put mankind and Earth on an equal footing. Find out if this delicate balance will one day be put off-track.
Human World - S1.E4 - Faces of Earth
August 13, 2007
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