Do any IPCC scientists dispute the IPCC's findings?

Answer 1

There are very few actual scientists that worked on the 2007 report. Out of a pool of over 300 individuals, most were economists and only 52 were actual scientists of any discipline.

Of the 52 actual scientists, 30 of them registered some form of complaint with the methods and conclusions drawn, although they did agree that the primary cause of the current warming trend was man.

What is more telling recently though is the IPCC itself is backing down and appears to be looking for ways of mitigating their liability for poor predictions.

They recently stated:

"Uncertainty in the sign of projected changes in climate extremes over the coming two to three decades is relatively large because climate change signals are expected to be relatively small compared to natural climate variability".

Many other groups have joined the troops questioning the accuracy of their report. Over 1000 scientists have viewed the report and the information and find flaws and dispute the finds.

A March 14, 2009 article in the Australian revealed that Japanese scientists are now at the forefront of rejecting man-made climate fears prompted by the UN IPCC.

Scientists that argue against the conclusions of the IPCC include (but are not limited to):

Freeman Dyson, Professor Emeritus of the School of Natural Sciences, Institute for Advanced Study; Fellow of the Royal Society

Richard Lindzen, Alfred P. Sloan Professor of Atmospheric Science at the Massachusetts Institute of Technology and member of the National Academy of Sciences

Nils-Axel Mörner, retired head of the Paleogeophysics and Geodynamics department at Stockholm University and former Chairman of the INQUA Commission on Sea Level Changes and Coastal Evolution (1999-2003)

Garth Paltridge, Visiting Fellow ANU and retired Chief Research Scientist, CSIRO Division of Atmospheric Research and retired Director of the Institute of the Antarctic Cooperative Research Centre

Philip Stott, professor emeritus of biogeography at the University of London

Hendrik Tennekes, retired Director of Research, Royal Netherlands Meteorological Institute

Khabibullo Abdusamatov, mathematician and astronomer at Pulkovo Observatory of the Russian Academy of Sciences

Sallie Baliunas, astronomer, Harvard-Smithsonian Center for Astrophysics

Ian Clark, hydrogeologist, professor, Department of Earth Sciences, University of Ottawa

Chris de Freitas, Associate Professor, School of Geography, Geology and Environmental Science, University of Auckland

David Douglass, solid-state physicist, professor, Department of Physics and Astronomy, University of Rochester

Don Easterbrook, emeritus professor of geology, Western Washington University

William M. Gray, Professor Emeritus and head of The Tropical Meteorology Project, Department of Atmospheric Science, Colorado State University

William Happer, physicist specializing in optics and spectroscopy, Princeton University

David Legates, associate professor of geography and director of the Center for Climatic Research, University of Delaware

Tad Murty, oceanographer; adjunct professor, Departments of Civil Engineering and Earth Sciences, University of Ottawa

Tim Patterson, paleoclimatologist and Professor of Geology at Carleton University in Canada

Ian Plimer, Professor emeritus of Mining Geology, The University of Adelaide

Answer 2

While there may be individual scientists who are involved in the IPCC process who may have differing opinions on specific aspects of the findings, the consensus among IPCC scientists as a whole is largely in agreement with the overall conclusions presented in the IPCC reports. The IPCC's assessment reports are based on a comprehensive review of scientific literature and undergo a rigorous peer-review process to ensure accuracy and credibility.