United Nations' Intergovernmental Panel on Climate Change: vigorously and critically undermined, scientifically denounced and found wanting from notable scientists
Excerpt: Before he died, Revelle gave interviews and wrote letters stating that CO2 and its greenhouse effect did not warrant extreme countermeasures. He told Omni Magazine, in March 1984, that "CO2 increase is predicted to temper weather extremes" -- not cause them. One cannot argue that CO2 was a causative factor -- especially since CO2 was apparently following temperature trend -- not moderating it. It seems none of his followers, Gore in particular, heeded his words.