Dust in West up 500 percent in past two centuries

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A dusty scene near Canyonlands in Utah. Dust in the West has increased by 500 percent since the 1800s. Credit: Jason C. Neff University of Colorado at Boulder
A dusty scene near Canyonlands in Utah. Dust in the West has increased by 500 percent since the 1800s. Credit: Jason C. Neff, University of Colorado at Boulder

The West has become 500 percent dustier in the past two centuries due to westward U.S. expansion and accompanying human activity beginning in the 1800s, according to a new study led by the University of Colorado at Boulder.


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