Maybe a wiki style project with everything laid out in the open.
For the record, I'm impartial and agnostic about climate change because I haven't seen the raw data or the programs used to make future predictions. I think this whole "consensus of scientists so its right" is BS and goes against the scientific method. Plus, climatologists may be incentivised to spread FUD b/c it brings fame and more grant money - plus their expertise is not statistics and writing code.
A software engineer reviews CRU source code - http://www.youtube.com/watch?v=q_buKNBrpcM
I'm sure some funding would not be difficult to find, given the magnitude of all this.
ClimateCodeReview.org? ClimateHackers.org? ClimateCrunchers.org?...