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.
The hottest month in US history was July, 1936.
The hottest week in US history was during July, 1913 in Death Valley California. The hottest temperatures in Arizona history occurred twenty years ago. No continent has set an all time heat record in over 40 years. Europe’s record temperature occurred during the 1880s. Half of US states set their all time temperature record during the 1930s.
When Hansen reports “we can say with confidence” – who is he talking about? What…
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The Delinquent Teenager
Climate Ponderings 