Inside Climate News presents "Exxon: The Road Not Taken," a nine-part, Pulitzer-finalist investigation built on internal Exxon documents and former employees' interviews, finding that Exxon did cutting-edge climate research decades ago, confirmed fossil fuels' role in global warming by 1982, and then spent years sowing doubt about the science its own scientists had verified. The series, which spawned the #ExxonKnew hashtag and climate liability lawsuits, also reports that top executives were warned of possible catastrophe and later cut the climate research budget.