Here are some of the quoted responses:
"I am horrified to find my name on such a list. I have spent the last 20 years arguing the opposite."
Dr. David Sugden. Professor of Geography, University of Edinburgh
"I have NO doubts ..the recent changes in global climate ARE man-induced. I insist that you immediately remove my name from this list since I did not give you permission to put it there."
Dr. Gregory Cutter, Professor, Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University
"I don't believe any of my work can be used to support any of the statements listed in the article."
Dr. Robert Whittaker, Professor of Biogeography, University of Oxford
"Please remove my name. What you have done is totally unethical!!"
Dr. Svante Bjorck, Geo Biosphere Science Centre, Lund University
"I'm outraged that they've included me as an "author" of this report. I do not share the views expressed in the summary."Dr. John Clague, Shrum Research Professor, Department of Earth Sciences, Simon Fraser University
"I am very shocked to see my name in the list of "500 Scientists with Documented Doubts of Man-Made Global Warming Scares". Because none of my research publications has ever indicated that the global warming is not as a consequence of anthropogenic greenhouse gases, I view that the inclusion of my name in such list without my permission or consensus has damaged my professional reputation as an atmospheric scientist."
Dr. Ming Cai, Associate Professor, Department of Meteorology, Florida State University."Just because you document natural climate variability doesn't mean anthropogenic global warming is not a threat. In fact I would venture that most on that list believe a natural cycle and anthropogenic change combined represent a greater threat."
Peter F. Almasi, PhD Candidate in Earth and Atmospheric Sciences, Columbia University"Why can't people spend their time trying to identify and evaluate the facts concerning climate change rather than trying to obscure them?"
Dr. James P. Berry, Senior Scientist, Monterey Bay Aquarium Research Institute"They have taken our ice core research in Wyoming and twisted it to meet their own agenda. This is not science."
Dr. Paul F. Schuster, Hydrologist, US Geological Survey"Please remove my name IMMEDIATELY from the following article and from the list which misrepresents my research."
Dr. Mary Alice Coffroth, Department of Geology, State University of New York at Buffalo
This demonstrates a very serious ethical lapse by the Heartland Institute--they've clearly tried to pull a fast one and been caught on it.
Arizona State Rep. Pamela Gorman (R-District 6, Anthem) is on the Legislative Advisory Board to the Heartland Institute; her hobbies as a legislator apparently include both denying the existence of anthropogenic climate change and promoting legislation for the Church of Scientology.
UPDATE (May 11, 2008): Pharyngula comments. The Heartland Institute, rather than issue a retraction or apology, has simply renamed their list to "500 Scientists Whose Research Contradicts Man-Made Global Warming Scares."
UPDATE (August 1, 2009): The Center for Inquiry has released its analysis of a similar list of dissenters promoted by Sen. James Inhofe.