EDIT
Professor Pitman was a lead author on the IPCC's 2001 and 2007 reports. He is also the co-director of the Climate Change Research Centre at the University of New South Wales. Professor Pitman says sceptics have used the IPCC's error to skew the climate change debate. "Climate scientists are losing the fight with the sceptics," he said.
"The sceptics are so well funded, so well organised. "They have nothing else to do. They don't have day jobs so they can put all their efforts into misinforming and miscommunicating climate science to the general public, whereas the climate scientists have day jobs and
actually isn't one of them. All of the efforts you do in an IPCC report is done out of hours, voluntarily, for no funding and no pay, whereas the sceptics are being funded to put out full-scale misinformation campaigns and are doing a damn good job, I think. They are doing a superb job at misinforming and miscommunicating the general public, state and federal governments."
EDIT
Professor Pitman has also played down the significance of the error in the IPCC's report. "There are two paragraphs that have been questioned in a 1600-page document," he said. "After two years, people have been going over that report with considerable care and have found a couple of errors of fact in a 1600-page document.
"I mean, we ought to be talking about the other 1599 pages that no one has found any problems with." Professor Pitman says he has no concerns about the IPCC's reviewing process. "We should be very clear on what the IPCC does. It writes a report that is fully open to external review. can each read over individual sections of the report and send in credible comments," he said.
EDIT
http://www.abc.net.au/news/stories/2010/01/25/2800992.htm