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(A presentation given by ecologist Jim Ludwig. He discusses chemical pollution of the Great Lakes and its effects on birds.)

(A presentation given by ecologist Jim Ludwig. He discusses toxic chemicals and their effects on the body.)

(A presentation given by Peter Montague. He discusses the regulatory-industrial complex and its impact on society and the environment.)

(A presentation given by Peter Montague. He discusses the regulatory-industrial complex and the waste production and disposal system.)

(A presentation given by Peter Mondague. He discusses the shortcomings of recycling, the regulatory-industrial complex, and risk assessments.)

(A presentation prepared by the Los Angeles chapter of the Sierra Club. The presenter discusses overpopulation's impact on the environment.)