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Showing posts from October, 2012

Global warming may take ocean sounds back to dinosaur era

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New research suggests that sounds, such as whale noises in the low-frequency sound range, by the year 2100 will be able to travel twice as far as they do now because of global warming. (Captain David Anderson's Dolphin and Whale Safari/Associated Press) Digsby IM, Email, and Social Networks in one easy to use application! http://digsby.com As oceans become more acidic, researchers predict they will carry sound as they did during the Age of the Dinosaurs. Some 110 million years ago, sound is believed to have traveled up to twice as fast through the seas as it does now. Global warming may be changing ocean sounds, taking them back to the acoustics of more than 100 million years ago when dinosaurs roamed the earth, new research suggests. Rising temperatures increase the acidity of the oceans and allow sounds near the surface to travel further than they currently do, says Rhode Island acoustician David G. Browning. He predicts that sounds, such...

No, Global Warming Hasn't 'Stopped'

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By  DAVID ROSE PUBLISHED:  21:42 GMT, 13 October 2012  |  UPDATED:  13:59 GMT, 16 October 2012 The world stopped getting warmer almost 16 years ago, according to new data released last week.  The figures, which have triggered debate among climate scientists, reveal that from the beginning of 1997 until August 2012, there was no discernible rise in aggregate global temperatures. This means that the ‘plateau’ or ‘pause’ in global warming has now lasted for about the same time as the previous period when temperatures rose, 1980 to 1996. Before that, temperatures had been stable or declining for about 40 years.  global temperature changes Research: The new figures mean that the 'pause' in global warming has now lasted for about the same time as the previous period when temperatures rose, 1980 to 1996. This picture shows an iceberg melting in Eastern Greenland The new data, compiled from more than 3,000 measuring points on l...