There are many explanations, perhaps so many that the outcome was overdetermined – powerful economic interests such as ExxonMobil, the hubris associated with victories in economic policy and in the Cold War, tribal dislike of environmentalists which translated easily to scientists as a group, and the immunisation to unwelcome evidence associated with the construction of the rightwing intellectual apparatus of thinktanks, talk-radio, Fox News, blogs and so on.
And currently getting a run on right-wing blogs is this Drudge-promoted article from Pravda (yes, Pravda — and note the story in the sidebar next to the article) about how Earth is on the brink of an Ice Age. he only evidence the story offers for this is Ice Ages occur regularly so we are due for one. Which I guess we are, provided we assume that greenhouse gases have no effect on warming.
Hume’s Ghost points out that the article’s author is also a 9/11 truther. Mind you, this doesn’t bother NewsBusters’ Noel Shepherd one little bit:
How delicious that an America-hating Truther who contributes to Pravda has a firmer grasp of climatology than Nobel Laureate Al Gore, James Hansen, Gavin Schmidt, and most of the folks at the IPCC.