Lately, opposition to mainstream climate science has become something of a litmus test for Republican politicians. As a Utah Republican myself, and an Earth scientist, I have been disappointed with how many of our politicians have gone beyond the usual wishy-washy dodge of saying they support "developing all sources of energy" to actively promoting anti-science.
Utah's Republican Sen. Orrin Hatch, for instance, maintains a web page called "Climate Change 101," in which he gives some reasons why he doesn't think anthropogenic climate change is likely to be a problem. The page is riddled with red herrings, references to studies that have since been refuted by other scientists, and the like. Most distressing, however, is Hatch's use of fraudulent data.
In his section on Intergovernmental Panel on Climate Change climate models, Sen. Hatch reproduces two graphs that were created by Christopher Monckton of the Science and Public Policy Institute, who has no scientific training. One graph purports to show that the IPCC climate models badly over-predicted the temperature evolution over the past decade. The other purports to show that IPCC carbon cycle models have badly over-predicted the evolution of atmospheric carbon dioxide over the past decade.