The other thing still being disputed is whether or not it matters that global warming is happening... Yes, the planet will change, some species will go extinct... But the planet has been changing for billions of years, and species have been going extinct since the first evolution of species.
Planetary change is a normal thing, and will continue as the sun's output varies (and the sun eventually dies). This will happen NO MATTER WHAT WE DO. The Earth has warmed and cooled many time in the past without human intervention. It will continue to do so.
That said, we ought to be more concerned about not squandering our resources, and limiting our population growth. I'd like to see us reward efficiency whenever we can. But you are talking to a /. reader who is always trying to find the most efficient set of steps to make a pot of coffee using the least amount of water to wash out the pot first... The correct order of cold and hot water to take advantage of the lukewarm water while the hot water is getting hot...