Photo detail

Courtesy Roger Revelle Papers, Special Collections & Archives, University of California, San Diego

February 2, 2015

Fifty years ago this this month President Johnson's science advisors delivered the first warning about rising greenhouse gas emissions to a sitting president. On Feb. 8, he warned Congress about altering the atmosphere with carbon emissions. Climate scientist Roger Revelle (left) shakes hands with Johnson (right) in the Oval Office. Photo courtesy Roger Revelle Papers, Special Collections & Archives, University of California, San Diego

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