A small number of aristocrats have collectively spent, on average, a billion dollars a year, in order to fool the American public into thinking that climate change isn't happening, and that, even if it is, it's not caused by burning fossil fuels. These aristocrats control fossil fuels corporations, such as Koch Industries, and ExxonMobil, but their money for this mass-deception campaign is laundered through far-right-wing foundations they control, to think-tanks they control, which buy professors to provide "authority" for these distortions and outright lies. That is why the reality (a graphical presentation of which can be seen at places such as this), though acknowledged by virtually all climatologists, is rejected, just disbelieved, by much of the public.
.....They, in turn, pay professors and journalists to write, both for the "news media," and for professional journals, to debunk or (in the scholarly publications) to raise questions about, global warming or its cause -- questions that are no longer even questions among actual climate scientists.
This study, titled "Institutionalizing delay: foundation funding and the creation of U.S. climate change counter-movement organizations," reports that all of this money is spent "on maintaining a field frame that justifies unlimited use of fossil fuels by attempting to delegitimate the science that supports the necessity of mandatory limits on carbon emissions. To accomplish this goal in the face of massive scientific evidence of anthropogenic climate change [which is documented in that link] has meant the development of an active campaign to manipulate and mislead the public over the nature of climate science and the threat posed by climate change.
http://www.huffingtonpost.com/eric-zuesse/billiondollarayear-progra_b_4513944.html