Rahmstorf, Stefan Potsdam Institute for Climate Impact Research;
http://www.realclimate.org/index.php/archives/2017/07/the-climate-has-always-changed-what-do-you-conclude/ (Publisher version)
Rahmstorf, S. (2017): The climate has always changed. What do you conclude?, (The climate has always changed. What do you conclude?)(RealClimate Blog), Washington, DC : Science Communication Network.