Reid A. Bryson holds the 30th PhD in Meteorology granted in the history of American education. Emeritus Professor and founding chairman of the University of Wisconsin
Department of Meteorology—now the Department of Oceanic and Atmospheric Sciences—in the 1970s he became the first director of what’s now the UW’s Gaylord Nelson Institute of Environmental Studies. He’s a member of the United Nations Global 500 Roll of Honor—created, the U.N. says, to recognize “outstanding achievements in the protection and improvement of the environment.” He has authored five books and more than 230 other publications and was identified by the British Institute of Geographers as the most frequently cited climatologist in the world.
Dr. Bryson has the the following to say about AGW:
“Of course it’s going up [global temperatures]. It has gone up since the early 1800s, before the Industrial Revolution, because we’re coming out of the Little Ice Age, not because we’re putting more carbon dioxide into the air.”
And then we have this interchange:
What is normal? Maybe continuous change is the only thing that qualifies. There’s been warming over the past 150 years and even though it’s less than one degree, Celsius, something had to cause it. The usual suspect is the “greenhouse effect,” various atmospheric gases trapping solar energy, preventing it being reflected back into space.
We ask Bryson what could be making the key difference:
Q: Could you rank the things that have the most significant impact and where would you put carbon dioxide on the list?
A: Well let me give you one fact first. In the first 30 feet of the atmosphere, on the average, outward radiation from the Earth, which is what CO2 is supposed to affect, how much [of the reflected energy] is absorbed by water vapor? In the first 30 feet, 80 percent, okay?
Q: Eighty percent of the heat radiated back from the surface is absorbed in the first 30 feet by water vapor…
A: And how much is absorbed by carbon dioxide? Eight hundredths of one percent. One one-thousandth as important as water vapor. You can go outside and spit and have the same effect as doubling carbon dioxide.
Full interview here…Reid Bryson (pdf)