Planet earth. WQED/Pittsburgh in association with National Academy of Sciences ; producer, Gregory Andorfer ; screenwriters, Gregory Andorfer, Georgann Kane
National Academy of Sciences (U.S.)
Explores the role of life in shaping the earth and in shaping the future. Probes the question: is man a threat to earth's future or is he emerging as the brain or nervous system of this living organism called earth? Reveals new theories about global consequences of a nuclear winter and an ultraviolent spring.
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