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From the Archives

Exxon’s Own Research Confirmed Fossil Fuels’ Role in Global Warming Decades Ago

Top executives were warned of possible catastrophe from greenhouse effect, then led efforts to block solutions.

By Neela Banerjee, Lisa Song and David Hasemyer

 Exxon's Richard Werthamer (right) and Edward Garvey (left) are aboard the company's Esso Atlantic tanker working on a project to measure the carbon dioxide levels in the ocean and atmosphere. The project ran from 1979 to 1982. Credit: Courtesy of Richard Werthamer

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