THIS OP-ED COLUMN in The New York Times by James Hansen, director of the NASA Goddard Institute for Space Studies, is downright chilling (if I might use that term):
The global-warming signal is now louder than the noise of random weather, as I predicted would happen by now in the journal Science in 1981. Extremely hot summers have increased noticeably. We can say with high confidence that the recent heat waves in Texas and Russia, and the one in Europe in 2003, which killed tens of thousands, were not natural events — they were caused by human-induced climate change.
We have ...