Jed,
I have been following the subject fairly closely. I'm not about to
start yet another discussion on AGW. I've written hundreds of posts on
that already. That the IPCC forecast has been falsified for the average
of the models and most of the individual models you can read about on
Lucia's blog at http://rankexploits.com/musings/
I'm not at all sure that global temperature is even a very meaningful
number when you think about it.
I lean towards what Prof. Syun-Ichi Akasofu writes here:
http://people.iarc.uaf.edu/~sakasofu/pdf/two_natural_components_recent_climate_change.pdf
At least his forecast is a lot closer than IPCC's.