HI all,
Glad to see everyone is still going at this thread...

Here is a most unusual thing, an article that actually takes a balanced look at the various arguments around AGW, from a reasonably authoritative source - Chemical Engineering News published by the American Chemical Society.

Global Warming And Climate Change - Believers, Deniers and Doubters

Interesting comment near the end about how the impact of methane may have been underestimated. Methane stopped increasing in 1998 just as (as some would say) temperatures seemed to level off. hmm...

cheers KP