William Happer is the Cyrus Fogg Bracket Professor of Physics at Princeton University. He spent his professional life studying the interactions of visible and infrared radiation with gases – one of the main physical phenomena behind the greenhouse effect. He has published over 200 papers in peer reviewed scientific journals. He is a member of a number of professional organizations, including the American Physical Society and the National Academy of Sciences. He has done extensive consulting work for the US Government and Industry. He also served as the Director of Energy Research at the Department of Energy (DOE) from 1990 to 1993, where I supervised all of DOE's work on climate change.
So, what does HE think about the Great Global Warming Scam?
The climate-change establishment has tried to eliminate any who dare question the science establishment climate scientists and by like-thinking policy-makers – you are either with us or you are a traitor.
I keep hearing about the “pollutant CO2,” or about “poisoning the atmosphere” with CO2, or about minimizing our “carbon footprint.” This brings to mind a comment by George Orwell: “But if thought corrupts language, language can also corrupt thought.” CO2 is not a pollutant and it is not a poison and we should not corrupt the English language by depriving “pollutant” and “poison” of their original meaning. Our exhaled breath contains about 4% CO2. That is 40,000 parts per million, or about 100 times the current atmospheric concentration. CO2 is absolutely essential for life on earth. Commercial greenhouse operators often use CO2 as a fertilizer to improve the health and growth rate of their plants. Plants, and our own primate ancestors evolved when the levels of atmospheric CO2 were at least 1000 ppm, a level that we will probably not reach by burning fossil fuels, and far above our current level of about 380 ppm. We try to keep CO2 levels in our US Navy submarines no higher than 8,000 parts per million, about 20 time current atmospheric levels. Few adverse effects are observed at even higher levels. [source USGOV SELECT COMMITTEE REPORT]