Beginning in 2006, 'round the time Rex Tillerson replaced Lee Raymond as CEO of Irving-based ExxonMobil, the company said it would cut funding to public-policy groups whose policy it was to deny in public the existence of climate change and the need to reduce greenhouse gas emissions. Last year, matter of fact, the company was very open about the break-up with some of those denial groups; in a Corporate Citizenship Report, Exxon said it would "discontinue contributions to several public policy i
