Read here and here. Despite decades of fear-mongering about global warming, the rhetorical hysteria has not convinced Americans or the world's best economists from reaching the same conclusion: there are much more important issues that need to be addressed before any tax dollars are wasted on global warming.
Why hasn't the hysteria of the MSM and green activists worked? Because the public and scientists have come to realization that much of the warming is natural, similar to previous historical warmings, and that modern warming is barely increasing, not accelerating as fear-mongers claimed. (click on image to enlarge)
Download source of FT/Harris Poll