It's always been insane to me that global warming was a political issue. As someone who works in the atmospheric sciences, it's the same as denying evolution or gravity, or tectonics. I always figured republicans would go for a lighter approach to mitigating, such as cap and trade, whilst democrats would be in favor of a carbon tax and regulations to reduce the ammount of oil, gas, etc. produced.
The world we live in, however is one where the majority of the GOP ignores or even denies AGW.