SCI COMMUN### Climate science Dust storms on the U.S. Great Plains have become more common over the past 20 years, and a tipping point leading to conditions like those of the 1930s-era Dust Bowl may soon arrive, researchers have concluded. A study last week in Geophysical Research Letters says more frequent droughts driven by climate change and an expansion of croplands in the region have doubled levels of wind-blown dust since 2000. The findings are based on data from NASA satellites that measure atmospheric haze caused by smoke and dust, corroborated by ground-level dust sensors. The storms not only remove...
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