Climate change denier changes – global warming at high end

http://thinkprogress.org/climate/2012/07/28/602151/bombshell-koch-funded-study-finds-global-warming-is-real-on-the-high-end-and-essentially-all-due-to-carbon-pollution/

This research by a (former) climate change denier confirms what has been being said for some time by mainstream climate scientists. Global warming is real at the high end of the IPCC forecasts and essentially all due to human-produced carbon dioxide equivalent emissions.