For years, AEI played a role in propagating misinformation about a manufactured controversy over emails stolen from climate scientists , with one AEI research fellow even claiming, “There was no consensus about the extent and causes of global warming.”  A resident scholar at AEI went so far as to state that the profession of climate scientist “threatens to overtake all” on the list of “most distrusted occupations.” 
AEI received $3,615,000 from ExxonMobil from 1998-2012 , and more than $1 million in funding from Koch foundations from 2004-2011. 
While claiming to be a grassroots organization, AFP has bolstered its list of “activists” by hosting “$1.84 Gas” events, where consumers who receive discounts on gasoline are asked to provide their name and email address on a “petition” form.  These events are billed as raising awareness about “failing energy policies” and high gasoline prices, but consumers are not told about AFP’s ties to oil interests, namely Koch Industries.
ALEC received more than $1.6 million from ExxonMobil from 1998-2012 , and more than $850,000 from Koch foundations from 1997-2011. 
Patrick Michaels, Director of Cato’s Center for the Study of Science, has referred to the latest Draft National Climate Assessment Report as “the stuff of fantasy.”  The most recent edition of Cato’s “Handbook for Policymakers” advises that Congress should “pass no legislation restricting emissions of carbon dioxide.” 
Heartland even once marked Earth Day by mailing out 100,000 free copies of a book claiming that “climate science has been corrupted”  – despite acknowledging that “…all major scientific organizations of the world have taken the official position that humankind is causing global warming.”