http://thinkprogress.org/climate/2015/12/07/3728921/exxonmobil-warns-catastrophic-global-warming/
"Of course, thanks to excellent reporting by InsideClimate News, we now know ExxonMobil had been told by its own scientists in the 1970s and 1980s that climate change was human-caused and would reach catastrophic levels without reductions in carbon emissions. Yes, this is same ExxonMobil that then became the largest funder of disinformation on climate science and attacks on climate scientists until they were surpassed by the Koch Brothers in recent years — but that is a different (tragic) story. Hiatt’s point is to show “how dangerously extreme the Republican Party has become on climate change,” and that that “Republicans’ ideologically based denial is dangerous and cowardly.” After all, the oil giant ain’t Greenpeace. Yet unlike the national GOP leadership and its presidential candidates, “the company believes climate change is real, that governments should take action to combat it and that the most sensible action would be a revenue-neutral tax on carbon,” that taxes fossil fuels like coal and oil and returns the money to taxpayers."