Professor of Atmospheric Science and Director of the Earth System Science Center at the University of Alabama at Huntsville
Con to the question "Is Human Activity Primarily Responsible for Global Climate Change?"
"It is popular again to claim that extreme events, such as the current central US drought, are evidence of human-caused climate change. Actually, the Earth is very large, the weather is very dynamic, and extreme events will continue to occur somewhere, every year, naturally...
New discoveries explain part of the warming found in traditional surface temperature datasets. This partial warming is unrelated to the accumulation of heat due to the extra greenhouse gases, but related to human development around the thermometer stations...
Widely publicized consensus reports by 'thousands' of scientists are misrepresentative of climate science, containing overstated confidence in their assertions of high climate sensitivity...
[C]limate models overestimate the response of temperature to greenhouse gas increases. Also shown was a lack of evidence to blame humans for an increase in extreme events. One cannot convict CO2 of causing any of these events, because they’ve happened in the past before CO2 levels rose...
It is a simple fact that CO2 is plant food and the world around us evolved when levels of CO2 were five to ten times what they are today. Our green world is a consequence of atmospheric CO2. And, food for plants means food for people. The extra CO2 we are putting into the atmosphere not only invigorates the biosphere, but also enhances the yields of our food crops. This is a tremendous benefit to nature and us in my view."
Testimony before the US Senate Environment and Public Works Committee, www.epw.senate.gov, Aug. 1, 2012
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:
Professor of Atmospheric Science, University of Alabama at Huntsville
Director, Earth System Science Center, University of Alabama at Huntsville
Fellow, American Meteorological Society, 2002-present
Alabama State Climatologist, Nov. 2000-present
Expert, The George C. Marshall Institute
Expert, The Heartland Institute
Expert, Competitive Enterprise Institute
Member, Huntsville City Surface Water Management Committee
Contributor, Intergovernmental Panel on Climate Change Report (IPCC), 1992, 1994, 1996, and 2007
Recipient, Distinguished Alumnus, California State University at Fresno, 2007
Lead Author, Intergovernmental Panel on Climate Change Report (IPCC), 2001
Recipient, NASA Medal for Exceptional Scientific Achievement, 1991
Recipient, Special Award "for developing a global, precise record of earth's temperature from operational polar-orbiting satellites, fundamentally advancing our ability to monitor climate," American Meteorological Society, 1996