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2017-02-18 17:42:37

Initial studies using the Yellowstone supercomputer indicate that a warming climate will aggravate ozone pollution over the United States in the middle of the century. However, if emissions of pollutants continue to decline, U.S. ozone levels should improve even as temperatures rise. (April 3, 2013)

Image uploaded by Karen Graham
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Personal Albums Oct 31, 2013 - Environment