News in cooperation with eceee.org
Western US and Southeast Asia face rising dust risk
(Climate News Network, 26 Oct 2020) It obscures the skies and darkens the snows. Wind-borne dust risk is increasingly ominous in a warming world.
Half a planet apart, one low-lying and the other on the roof of the world, two huge regions confront an increasing dust risk − a menace to jobs, to food and to lives.
The Great Plains of North America are getting dustier every year because more soil is now being exposed to erosion. And high in the Himalayas on the continent of Asia, the peaks too are becoming dustier, in ways that threaten to increase the melting of high-altitude snows.
Both findings are in essence bad news. In the western US, higher levels of wind erosion as a consequence of changing farm practices combined with ever-greater probabilities of drought mean ever-higher probabilities of a return of the Dust Bowl that devastated the US Midwest 90 years ago.
And 700 million people in Southeast Asia, China and India depend on the slow melting of the Himalayan glaciers to irrigate their crops in the hot dry season: earlier melting threatens not just livelihoods but lives.
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