Climate News Network: Scientists are fond of saying that it is difficult to pin the blame for any one climate event onto climate change. But they have just made an exception by reporting that many things that happened in Australia in 2013 bore the signature of man-made climate change. In that one year, Australia recorded its hottest day ever, its hottest month in the history books, its hottest summer, its hottest spring, and its hottest year overall. Extreme events And in a special edition of the Bulletin of the American...