Study Links 'Smog' to Arctic Warming

NASA scientists have found that a major form of global air pollution involved in summertime "smog" has also played a significant role in warming the Arctic.

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<p><a href="http://www.physorg.com/news11740.html">Study Links 'Smog' to Arctic Warming</a></p> <p>NASA scientists have found that a major form of global air pollution involved in summertime "smog" has also played a significant role in warming the Arctic.</p>