LA Times: Back in 1990, as the debate over climate change was heating up, a dissident shareholder petitioned the board of Exxon, one of the worlds largest oil companies, imploring it to develop a plan to reduce carbon dioxide emissions from its production plants and facilities. The boards response: Exxon had studied the science of global warming and concluded it was too murky to warrant action. The companys examination of the issue supports the conclusions that the facts today and the projection of future...