Global Warming and the Culture Wars

Leaked documents show that the nonprofit Heartland Institute is trying to shake the confidence of public school teachers in human-caused climate change. Its proposed K-12 curriculum says there is "scientific controversy," when a broad consensus of scientists says the case is all too clear. It's evidence of how so-called "merchants of doubt" are challenging efforts to limit the burning of fossil fuels and emissions of greenhouse gases. How does the effort to contradict climate science compare to the push to teach Creationism as the "other side" of Evolution?