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From Silent Spring to Silent Night

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Uploaded on Apr 16, 2007

"From Silent Spring to Silent Night," a talk by Prof. Tyrone Hayes,
Department of Integrative Biology,
University of California, Berkeley, given at Humphrey Institute in
Minneapolis on March 23, 2007. Dr. Hayes is an authority on the
effects of the pesticide atrazine on frogs, and is not popular with
chemical companies for his views and proven research.

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