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The Flipping Point

How the evidence for anthropogenic global warming has converged to cause this environmental skeptic to make a cognitive flip
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In 2001 Cambridge University Press published Bjorn Lomborg’s book The Skeptical Environmentalist, which I thought was a perfect debate topic for the Skeptics Society public lecture series at the California Institute of Technology. The problem was that all the top environmental organizations refused to participate. “There is no debate,” one spokesperson told me. “We don’t want to dignify that book,” another said. One leading environmentalist warned me that my reputation would be irreparably harmed if I went through with it. So of course I did.

My experience is symptomatic of deep problems that have long plagued the environmental movement. Activists who vandalize Hummer dealerships and destroy logging equipment are criminal ecoterrorists. Environmental groups who cry doom and gloom to keep donations flowing only hurt their credibility. As an undergraduate in the 1970s, I learned (and believed) that by the 1990s overpopulation would lead to worldwide starvation and the exhaustion of key minerals, metals and oil, predictions that failed utterly. Politics polluted the science and made me an environmental skeptic. (continue reading…)

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