Scientists: Earthquakes, El Ninos fatal to earliest civilization in Americas

First came the earthquakes, then the torrential rains. But the relentless march of sand across once fertile fields and bays, a process set in motion by the quakes and flooding, is probably what did in America's earliest civilization.

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<p><a href="http://www.physorg.com/news151610712.html">Scientists: Earthquakes, El Ninos fatal to earliest civilization in Americas</a></p> <p>First came the earthquakes, then the torrential rains. But the relentless march of sand across once fertile fields and bays, a process set in motion by the quakes and flooding, is probably what did in America's earliest civilization.</p>