Extreme weather: no other explanation, unless one is a Republican

NASA scientist links climate change, extreme weather - CNN.com: ""This is not a climate model or a prediction but actual observations of weather events and temperatures that have happened," he wrote in a Washington Post opinion piece meant to accompany the study.
"Our analysis shows that it is no longer enough to say that global warming will increase the likelihood of extreme weather and to repeat the caveat that no individual weather event can be directly linked to climate change. To the contrary, our analysis shows that, for the extreme hot weather of the recent past, there is virtually no explanation other than climate change."
The study, which was published by the Proceedings of the National Academy of Sciences, looks at the past six decades of global temperatures and finds what Hansen described as a "stunning" rise in the frequency of extremely hot summers."