Thirty years ago, James Hansen, a scientist at nasa, issued a warning about the dangers of climate change. The predictions he and other scientists made at the time have proved spectacularly accurate.
Credit: Charles Ommanney / The Washington Post / Getty
On June 23, 1988—a blisteringly hot day in Washington, D.C.—James Hansen told a Senate committee that "the greenhouse effect has been detected and is changing our climate now."
From The New Yorker
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