Well, to both of those I present Exxon. Their research determined decades ago that gas and oil consumption was going to be a threat to the planet, in fact as late as the 1960's:
A document discovered by DeSmog reveals that Exxon was aware as early as the late 1960s that global emissions of CO2 from combustion was a chief pollution concern affecting global ecology.
Those details were found in a 1970 report, “Pollution Is Everybody’s Business,” authored by H.R. Holland, a Chemical Engineer responsible for environmental protection in Imperial Oil’s engineering division. [click to download PDF of “Pollution is Everybody's Business]So is Exxon part of the "liberal plot"? Or are their results the product of government funding? No. Denial of global warming is caused by failing to acquaint oneself with the evidence. There is no liberal plot, and the consensus of climate scientists is real.
The effectiveness of the denial is tragic, for the planet and the people on it.