Well CKX, it's not matter of believing in it or not, it's a fact that the temperature of teh globe is rising.
The issue here is whether it is our responsability andif so to what extent and due to what in order to be able to determine what to do.
Supposing that it was our fault in a considerable measure then there's a lot we could do, but certainly, it's not feasible from profit-oriented economics' perspectives.