Scientific American: Was the extreme heat and dryness of the summer of 2012 the result of climate change?
“It’s the old problem of saying any one event is the result of climate change.” That’s James McCarthy, professor of biological oceanography at Harvard and current president of the board of the Union of Concerned Scientists, speaking September 21st in New York City at an event hosted by the Union.
“We have been locked in a two year now strong La Nina cycle. The La Nina cycle brings more aridity to the center…

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