I think it is mis-information, politics, with a mix of paranoia. Examples include Al Gore's an inconvenient truth when he talked about carbon dioxide causing global warming in earth's history, when in reality global warming preceded increase carbon dioxide levels.
Wikipedia is another example of mis-information. They use references that talk about "climate change" and infer that to mean "global warming", when actually "climate change" doesn't mean anything and can mean "global cooling"
These basic conclusions have been endorsed by at least thirty scientific societies and academies of science, including all of the national academies of science of the major industrialized countries...
Check out the references. They talk about climate change, not global warming. A fine example of mis-information.