Scientific American: “The climate change debate has been polarized into a simple dichotomy. Either global warming is ‘real, man-made and dangerous,’ as Pres. Barack Obama thinks, or it’s a ‘hoax,’ as Oklahoma Sen. James Inhofe thinks. But there is a third possibility: that it is real, man-made and not dangerous, at least not for a long time.  This ‘lukewarm’ option has been boosted by recent climate research, and if it is right, current policies may do more harm than good.”