Global Warming is the new religion for the Godless crowd, because the Party Faithful needed something to believe in.
After Communism became a ticket to long-term poverty and saving Social Security and Medicare required compromises, Global Warming became the Cause Célèbre of the Effétè Elitè.
I'm convinced that part of the fanaticism of the global warming fanatics is that Bush is skeptical about global warming, so for them that just raises the ante immeasurably.