Light pollution offers new global measure of coral reef health

We've all seen the satellite images of Earth at night--the bright blobs and shining webs that tell the story of humanity's endless sprawl.

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<p><a href="http://www.physorg.com/news146768690.html">Light pollution offers new global measure of coral reef health</a></p> <p>We've all seen the satellite images of Earth at night--the bright blobs and shining webs that tell the story of humanity's endless sprawl.</p>