Ronald Reagan Professor of Public Policy at Pepperdine University
Con to the question "Is Human Activity Primarily Responsible for Global Climate Change?"
"The models the IPCC uses for projecting a 3 to 4 degree Celsius increase in temperature all assume large positive (that is, temperature-magnifying) feedbacks from a doubling of carbon dioxide in the atmosphere...
If the climate system is less sensitive to greenhouse gases than the climate campaign believes, then what is causing plainly observable changes in the climate, such as earlier arriving springs, receding glaciers, and shrinking Arctic Ocean ice caps?...
The IPCC downplays theories of variations in solar activity, such as sunspot activity and gamma ray bursts, and although there is robust scientific literature on the issue, even the skeptic community is divided about whether solar activity is a primary cause of recent climate variation. Several studies of Arctic warming conclude that changes in ocean currents, cloud formation, and wind patterns in the upper atmosphere may explain the retreat of glaciers and sea ice better than greenhouse gases... Above all, if the medieval warm period was indeed as warm or warmer than today, we cannot rule out the possibility that the changes of recent decades are part of a natural rebound from the 'Little Ice Age' that followed the medieval warm period and ended in the 19th century."
Experts Individuals with PhDs, heads of government, members of federal legislative bodies, and individuals with graduate degrees and significant post-graduate involvement in fields relevant to the study of climate. [Note: Experts definition varies by site.]
Involvement and Affiliations:
Ronald Reagan Professor of Public Policy, Pepperdine University
Thomas Smith Distinguished Fellow, John M. Ashbrook Center, Ashland University
Former FK Weyerhaeuser Fellow, American Enterprise Instutute for Public Policy Research
Former Senior Fellow, Environmental Studies, Pacific Research Institute
Former Fellow, Claremont Institute
Former Adjunct Fellow, Ashbrook Center for Public Affairs
Member, California Departmental Transportation Advisory Committee, 1996-2001
Bradley Fellow, Heritage Foundation, 1993-1998
Contributing Editor, Reason Magazine, 1990-2001
Director, Golden State Center for Policy Studies, 1987-91
Executive Director, Inland Business Magazine, 1985-90
Richard M. Weaver Fellow, Intercollegiate Studies Institute, 1985-86 Director of Journalism, Public Research Syndicated, Claremont Institute, 1984-87
Former Earhart Fellow and Olive Garvey Fellow, Mont Pelerin Society
PhD, American Studies, Claremont Graduate School
MA, Government, Claremont Graduate School
BS, Business and Administrative Studies, Lewis and Clark College