Based on a review of documents detailing what Exon Mobil knew about the company’s role in climate change, Geoffrey Supran and Naomi Oreskes, writing in The New York Times, conclude that “Exxon Mobil misled the public about the state of climate science and its implications. Available documents show a systematic, quantifiable discrepancy between what Exxon Mobil’s scientists and executives discussed about climate change in private and in academic circles, and what it presented to the general public.” Their analysis is published in Environmental Research Letters. A coalition of state attorneys general and the Securities and Exchange Commission are investigating whether the company lied to the public and investors about what it knew about the dangers of climate change. Making corporations liable for misleading investors about scientific evidence may be a valuable strategy for public health advocates seeking to reduce harmful corporate practices.