Hansen said this in 2012.
We conclude that extreme heat waves, such as that in Texas and Oklahoma in 2011 and Moscow in 2010, were “caused” by global warming, because their likelihood was negligible prior to the recent rapid global warming.
The EPA says something completely different.
And the temperature record shows that heatwaves were more common in the 1930′s and 1950′s
So how does Hansen get away with his constant flow of misinformation about the climate?