The Biosphere

Canada, 1979

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The McKenzie and Amazon Valleys are 10,000 kilometres distant from one another and are certainly distinct ecologically. Yet in a subtle sense they are collaborating elements within the biosphere - the Earth’s thin layer of living matter. This film examines two of the myriad river ecosystems and shows how they are linked within the biosphere.

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William Pettigrew


Colin Low

Peter Katadotis

Barrie Howells

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National Film Board of Canada



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