I've recently started looking at Global Warming Theory, and have come to this conclusion:

They're looking at the wrong problem.

With so little data on weather, it is impossible to predict how things will happen! When sunspots can do more to warm and cool the planet than can all CO2 outputs combined, I'm not too impressed. 

More thoughts on this later as I read more, from both sides.

(a passing thought - what if the enviromental groups were concerned with bettering the lives of people, instead of filling pockets and gaining political clout?)