EDIT
The theory relies on some superficially impressive mathematics. Though climate scientists immediately debunked his hypothesis when it was published in 2008, Lord Monckton is still the most prominent intellectual spokesman for the climate-change sceptic movement. He is set to arrive in Australia next week on a speaking tour with the support of a group of business people, including the mining heiress Gina Rinehart. He has offered to give the Prime Minister, Kevin Rudd, a tutorial in climate science.
''The scientifically illiterate, economically innumerate policies that you advocate - however fashionable you may conceive them to be - are killing people by the million,'' he wrote in an open letter to Mr Rudd this month. The crux of Lord Monckton's complaint is that the world's climate is nowhere near as sensitive to greenhouse gases as climate scientists believe. The thousands of researchers who have worked on the problem since the 1890s have all been getting their maths wrong, he believes. It is a bold thesis because climate sensitivity is the keystone to our understanding of global warming.
EDIT
The argument Lord Monckton mounted has been painstakingly picked apart by several eminent climate-change researchers, but it was an Australian computer scientist, Tim Lambert, who helped collate many of the flaws on his website. ''A lot of the equations used to cover it up were right, but the argument was complete gibberish,'' Mr Lambert said. The hypothesis took the lowest possible range of carbon dioxide's known warming effect on climate, multiplied it by the lowest possible effect of the various feedbacks that amplify the warming effect, to give a figure well below that shown by any observation. One of the implications of the hypothesis was that, given what we know about climate, there could not have been ice ages in the past.
''The hypothesis is completely inconsistent with the observations,'' said Professor Matthew England, the co-director of the Climate Change Research Centre at the University of NSW. ''In science, the world isn't wrong so the calculations must be wrong.''
EDIT
http://www.theage.com.au/environment/puzzle-me-this-climate-change-theory-allows-no-ice-age-20100115-mcgx.html