CBC Reporter: “What are the Koch brothers trying to achieve?” Jane Mayer, author of “Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right“: “They are very, very strident libertarians who want to shrink the government, reduce taxes, particularly their own taxes…they’re the biggest producers of toxic waste in America, and they’re also among the bigger polluters in terms of air pollution, water pollution and climate pollution.”

In short, along with his brother Charles, David Koch was the primary sponsor of climate-change doubt in the United States.