Hugh Pickens writes writes "Bryan Walsh writes in Time Magazine that climate denialism exists in part because there has been a long-term, well-financed effort on the part of conservative groups and corporations to distort global-warming science. "The blows have been struck by a well-funded, highly complex and relatively coordinated denial machine," say sociologists Riley Dunlap and Aaron McCright. Fossil-fuel companies like Exxon and Peabody Energy — which obviously have a business interest in slowing any attempt to reduce carbon emissions — have combined with traditionally conservative corporate groups like the US Chamber of Commerce and conservative foundations like the Koch brothers' Americans for Prosperity, to raise doubts about the basic validity of what is, essentially, a settled scientific truth. The naysayers seem to be following the playbook written by the tobacco industry in its long, ongoing war against medical findings about the dangers of smoking. For both Big Oil and Big Smoke, that playbook is lethally simple: don't straight-up refute the science, just raise skepticism and insist that the findings are "unsettled" and that "more research" is necessary."