How Does CO2 Really Affect the Planet?

"We're in a CO₂ famine now... It's unbelievable that they've managed to turn this beneficial gas, a part of life, into a threat."

Leading physicist and Princeton emeritus professor, Dr. William Happer: "They talk about carbon pollution. I can't imagine what they're talking about. We're made of carbon, and we breathe out two pounds of CO₂ a day, each of us—that's 8 billion people."

"Many of them say, well, people are the real problem, it's not the CO₂, we've got too many people, and really we can't have more than a billion people in the world."