“The new study includes Exxon’s graphs, models, projections and publications that show it understood how its business would affect the planet, according to the researchers Geoffrey Supran of the University of Miami, Stefan Rahmstorf of the University of Potsdam and Naomi Oreskes of Harvard University. Oreskes previously co-authored the book “Merchants of Doubt,” which detailed the efforts of a small number of scientific researchers who worked to undermine the public’s acceptance of climate science.
“All told, ExxonMobil was aware of contemporary climate science, contributed to that science, and predicted future global warming correctly,” the researchers wrote. “ExxonMobil accurately foresaw the threat of human-caused global warming, both prior and parallel to orchestrating lobbying and propaganda campaigns to delay climate action.”
Exxon spokesperson Todd Spitler rebutted the claims and said the company supports addressing climate change.”
“Exxon’s models aligned with the best science between 1970 and 1990, the paper found. Exxon projected 0.2 degrees Celsius (0.36 Fahrenheit) of warming every decade with a 0.04-degree C margin of error. That figure is close to the 0.19 degrees C rise and 0.03-degree C margin of error derived from 18 government and academic models.
Under one metric, Exxon proved more precise than famed NASA climate scientist James Hansen, who first brought global warming to Congress’ attention in 1988.
“It has been established that, for many years, Exxon’s public affairs strategy was — as a 1988 internal memo put it — to ‘emphasize the uncertainty in scientific conclusions regarding the potential enhanced greenhouse effect,’” the report said. “However, our analysis shows that in their reports and briefings to management, ExxonMobil’s own scientists did not particularly emphasize uncertainty.””