Six Easy Pieces

From the folks @ realclimate

"The CO2 problem in 6 easy steps

@ 6 August 2007


We often get requests to provide an easy-to-understand explanation for why increasing CO2 is a significant problem without relying on climate models and we are generally happy to oblige. The explanation has a number of separate steps which tend to sometimes get confused and so we will try to break it down carefully."
http://www.realclimate.org/index.php/archives/2007/08/the-co2-problem-in-6-easy-steps/