Okay, so we're just here with strong opinions or, through the links at the right, with evidence-based science. If you want "truth," you have to go to people with a religious conviction -- or, apparently, to people with really big funding from the energy industry.
Democracy is utterly dependent upon an electorate that is accurately informed. In promoting climate change denial (and often denying their responsibility for doing so) industry has done more than endanger the environment. It has undermined democracy.
There is a vast difference between putting forth a point of view, honestly held, and intentionally sowing the seeds of confusion. Free speech does not include the right to deceive. Deception is not a point of view. And the right to disagree does not include a right to intentionally subvert the public awareness.