I am not a climatologist, but I don't think any of the other witnesses are either. I do work in the related field of atomic, molecular and optical physics. I have spent my professional life studying the interactions of visible… — William Happer Copy Share Image
With each passing year, experimental observations further undermine the claim of a large positive feedback from water. In fact, observations suggest that the feedback… — William Happer Copy Share Image
I am not a climatologist, but I don't think any of the other witnesses are either. I do work in the related field of… — William Happer Copy Share Image
No chemical compound in the atmosphere has a worse reputation than CO2, thanks to the single-minded demonization of this natural and essential atmospheric gas… — William Happer Copy Share Image
The incredible list of supposed horrors that increasing carbon dioxide will bring the world is pure belief disguised as science. — William Happer Copy Share Image
About fifty million years ago...geological evidence indicates CO2 levels were several thousand ppm, much higher than now. And life flourished abundantly. — William Happer Copy Share Image
