The much disgraced and discredited Bjorn Lomborg
http://info-pollution.com/lomborg.htm
http://en.wikipedia.org/wiki/Bj%C38rn_Lomborg#Accusations_of_scientific_dishonesty
http://www.onlineopinion.com.au/view.asp?article=773
There is even a whole website devoted to his errors and distortions http://www.lomborg-errors.dk/
Lomborg's arguments are crap http://www.postnormaltimes.net/blog/archives/2008/09/yohe_and_lombor.html
The Lomborg of "Lomborg consistently--and irresponsibly--downplays the worst case scenarios that we have to worry about if we just continue to unrepentantly pollute the atmosphere with heat-trapping gases. " http://www.desmogblog.com/global-warming-and-the-posture-of-skepticism-bjorn-lomborg
And the there is his Copenhagen Consensus http://www.realclimate.org/index.php/archives/2006/07/the-copenhagen-consensus/#more-325 And let's not forget http://www.desmogblog.com/bjorn-lomborg-bibliography and http://www.desmogblog.com/bjorn-lomborgs-apples-and-oranges-argument