Scientists: Climate Change Clues in Sky

(AP) -- Scientists are peering into the clouds near the top of the world, trying to solve a mystery and learn something new about global warming. The mystery is the droplets of water in the clouds. With the North Pole just 685 miles away, they should be frozen, yet more of them are liquid than anyone expected.

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<p><a href="http://www.physorg.com/news83781375.html">Scientists: Climate Change Clues in Sky</a></p> <p>(AP) -- Scientists are peering into the clouds near the top of the world, trying to solve a mystery and learn something new about global warming. The mystery is the droplets of water in the clouds. With the North Pole just 685 miles away, they should be frozen, yet more of them are liquid than anyone expected.</p>