Actually, two quotes:
“I would also point out that CO2, carbon dioxide, is not a pollutant in any normal definition of the term. … I am creating it as I talk to you. It’s in your Coca-Cola, you’re Dr. Pepper, your Perrier water. It is necessary for human life. It is odorless, colorless, tasteless, does not cause cancer, does not cause asthma.”
“If you think greenhouse gases are bad, life couldn’t exist without greenhouse gases. … So, there is a, there is a climate theory — and it’s a theory, it’s not a fact, it’s never been proven — that increasing concentrations of CO2 in the upper atmosphere somehow interact to trap more heat than the atmosphere would otherwise.”
— Representative Joe Barton (R-TX)