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Paul R. Ehrlich

3:03

Paul R. Ehrlich: Saving Earth

2:55

Q&A: Australia is 'destroying the life support systems' says Paul Ehrlich

3:03

Paul R. Ehrlich: Saving Earth

3:16

Entrevista con Paul R. Ehrlich

3:25

Interview with Paul R. Ehrlich

Paul Ralph Ehrlich is an American biologist, best known for his warnings about the consequences of population growth and limited resources. He is the Bing Professor of Population Studies of the Department of Biology of Stanford University and president of Stanford's Center for Conservation Biology.