http://thinkprogress.org/climate/2015/11/24/3725320/exxon-koch-climate-misinformation-polarizing/
"The study comes out at a time when ExxonMobil is facing increasing public scrutiny for its role in misleading the public about climate change. Several prominent politicians have called for a Department of Justice investigation into whether or not Exxon purposefully mislead the public about climate change, based on information published in a recent Inside Climate News investigation which found that Exxon’s internal research confirmed in 1977 that climate change is caused by carbon emissions from fossil fuels. Earlier this month, New York State Attorney General Eric Schneiderman issued a subpoena to Exxon, demanding records relating to its climate research."
