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Is CO2 a pollutant?

Will Happer, Princeton’s Galileo

William Happer EPW Testimony

February 25, 2009, Update on the Latest Global Warming Science, Testimony of William Happer, Professor of Physics, Princeton University

Is CO2 a pollutant?

November 16, 2014 - Posted by | Environmentalism, Science and Pseudo-Science, Timeless or most popular, Video

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