Rahmstorf, Stefan Potsdam Institute for Climate Impact Research;
http://www.newscientist.com/article/mg21528804.400-if-2013-breaks-heat-record-how-will-deniers-respond.html (Publisher version)
Rahmstorf, S. (2012): If 2013 breaks heat record, how will deniers respond? - [Opinion]. - New Scientist, 215, 2880, 24-25.