National Public Radio: It's been an unusually hot couple of years in many parts of the U.S. But just how unusual is this? It's a question climate scientists are getting asked a lot. They wonder whether a warming climate is doing this or whether it's just part of the normal variation in the weather. Among scientists there's a growing view that these latest heat waves are a result of climate change. NASA climate scientist James Hansen has been looking at the past century's temperatures all over the world. He has measured...
URL: http://www.npr.org/2012/08/06/158215252/are-recent-heat-waves-a-result-of-climate-change
Enclosure: http://media.npr.org/assets/img/2012/08/06/texas-heat_wide.jpg?t=1344284147&s=4
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