In an interview with with msnbc.com Professor James Lovelock the originator of the "Gaia" theory of the earth says he was alarmist about climate change and so was Gore! He says "the problem is we don`t know what the climate is doing. We thought we knew 20 years ago. Twelve years(from 2000) is a reasonable time, the temperature has stayed almost constant whereas it should have been rising---carbon dioxide is rising no question about that". He went on to say he did not mind saying "I made a mistake". He claimed a university or government scientist might fear an admission of a mistake would lead to the loss of funding. He pointed to Al Gore`s "An inconvenient truth" ( in reality an untruth!) and Tim Flannery`s " the weather makers" as other examples of alarmist forecasts of the future.
( http://worldnews.msnbc.com/_news/2012/04/23/11144098-gaia-scientist-james-lovelock )