"Crude" and "The Inconvenient Truth" and "The Great Global Warming Swindle" are all pretty convincing productions and at the same time contradictory towards each other and towards the scientific debate.
I have spent about 2.000 hours over the last year to learn a little more on the CO2 issue and the more I learn, the less certain I am on what is going on. But in general, I think the sun has much more to do with climate change, than the CO2 has.
CO2 is to me taken as a political and economical hostage. This is as far as I go...