"The research team identified the climatic turning point after analyzing stalagmites from a cave in Great Basin National Park in Nevada." http://earthsky.org/earth/us-deserts-wet-until-8200-years-ago?utm_source=EarthSky+News&utm_campaign=5959d40bfc-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-5959d40bfc-394155837
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