„We have to be grown-ups, I think [when discussing the payment of funds today to prevent climate harm which may be decades in the future]. There are lots of things we do where the investments come way, way in the future. Educating 4-year-olds... that's an investment that goes way into the future as well.“
— William D. Nordhaus
"Economist Says Best Climate Fix A Tough Sell, But Worth It." http://www.npr.org/2014/02/11/271537401/economist-says-best-climate-fix-a-tough-sell-but-worth-it National Public Radio. February 11, 2014.