The right’s climate denialism is part of something much larger
Consider what the Limbaugh/Morano crowd is saying about climate: not only that that the world's scientists and scientific institutions are systematically wrong, but that they are purposefully perpetrating a deception. Virtually all the world's governments, scientific academies, and media are either in on it or duped by it. The only ones who have pierced the veil and seen the truth are American movement conservatives, the ones who found death panels in the healthcare bill.
It's a species of theater, repeated so often people have become inured, but if you take it seriously it's an extraordinary charge. For one thing, if it's true that the world's scientists are capable of deception and collusion on this scale, a lot more than climate change is in doubt. These same institutions have told us what we know about health and disease, species and ecosystems, energy and biochemistry. If they are corrupt, we have to consider whether any of the knowledge they've generated is trustworthy. We could be operating our medical facilities, economies, and technologies on faulty theories. We might not know anything! Here we are hip-deep in postmodernism and it came from the right, not the left academics they hate.