Scientists warn of climate catastrophe

The world faces a growing risk of "abrupt and irreversible climatic shifts" as fallout from global warming hits faster than expected, according to research by international scientists released Thursday.

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<p><a href="http://www.physorg.com/news164528489.html">Scientists warn of climate catastrophe</a></p> <p>The world faces a growing risk of "abrupt and irreversible climatic shifts" as fallout from global warming hits faster than expected, according to research by international scientists released Thursday.</p>