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The right response is to help vulnerable people adapt to extreme weather events, to the degree we can afford. The idea that we cause them and can prevent them from occurring is science fiction.

Tom Harris is executive director of the International Climate Science Coalition. Madhav Khandekar, a former research scientist with Environment Canada, was an expert reviewer for the U.N.’s IPCC 2007 climate-change documents and contributed to the Nongovernmental International Panel on Climate Change.