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Killer Earth

Nagasaki%201945.png The Gaia hypothesis states that life preserves the conditions for its own survival. But Peter Ward, a paleontologist who specializes in mass extinctions, takes a dimmer view of life on earth. Seeing a tangle of organisms that have evolved to starve their competitors and pollute their surroundings, he argues that for billions of years the biosphere has been its own worst enemy... [text]


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