Some of it is pure PC. Democrats know they're "supposed to" care about global warming and feel guilty about driving their SUVs back and forth to soccer practice and going through warehouses full of fast-food containers on family trips. But so long as the politicians play their prescribed roles (Democrats: furrowed-brow, ineffective concern; Republicans: utterly insincere, ineffective concern), it's just not a voting issue.
And he scores points with me here:
That was the premise of a recent exercise conducted by political scientist Bjorn Lomborg (author of "The Skeptical Environmentalist") with a number of U.N. diplomats (including U.S. Ambassador John Bolton). Lomborg gave each functionary a fictional $50 billion to spend on world problems - obliging them to chose which problems need to be solved first.
Anyone who mentions Bjorn Lomborg is OK in my book! But go read the article to find out how the UN diplomats spent their $50B. You'll find that your Kyoto-loving bureaucrats aren't even interested in addressing global warming fictitiously, much less in reality!