Exxon accused by Harvard researchers of misleading public on climate change

Two Harvard University researchers say they have collected data proving Exxon Mobil Corp made "explicit factual misrepresentations" in newspaper ads it purchased to convey its views on the oil industry and climate science.

Exxon Mobil Corp knew more than it publicly
 admitted about climate change, according to a study.

In an article in the journal Environmental Research Letters, researchers Geoffrey Supran and Naomi Oreskes said they examined 187 documents, including internal memos, peer-reviewed papers by Exxon scientists and "advertorials" that ran in The New York Times — paid advertisements in the style of opinion pieces.

The researchers said they used a social science analysis method to turn statements in the documents into data points that could be counted and compared to each other.

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