Dr. William Happer: 'CO2 Is Not a Pollutant—It's the Gas of Life, and We're in a CO2 Famine'

"We're in... a carbon dioxide famine now."

Professor Emeritus of Physics at Princeton University, Dr. William Happer: "If you look over geological history, it's been much higher than now most of the time."

"Most plants do better with more carbon dioxide than they have now. So it's just a complete distortion of the truth to call it a pollutant. It's not a pollutant at all."

"People [like Al Gore] saw a way to make a buck in demonising CO2, and that's what's happened."

"Greenhouse operators... intentionally increase the CO2 concentration in the greenhouse by factors of two, three, four... because the plants grow so much better with more CO2."