[ggrot]

There is alot of good data on the Copenhagen Consensus and climate change on wikipedia of all places: http://en.wikipedia.org/wiki/Copenhagen_Consensus

The conference was run by Bjorn Lomborg who is an avid climate change skeptic and hence there may be some bias. Read Scientific American's critique of his work and you can judge for yourself: http://www.ma.utexas.edu/users/davis/375/reading/sciam.pdf

It was also only attended by economists, and the effects of the discount rate and formula they applied (only considering a the next 300 years) might were said by one of the attendees that "climate change was set up to fail".