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Historic drought in the west and water diversion for human use are causing stretches of the Colorado and Mississippi Rivers to run dry. The Colorado River's declining flows can be seen at Lake Mead, where precipitous drops in water levels have left chalky stains on the mountains surrounding the United States's largest reservoir (by volume). And in October of last year, weak currents on the Mississippi River caused a backup of thousands of barges carrying the equivalent of 210,000 container trucks of corn and soy beans.

"We would have had a drought anyhow, but it's human impact that has pushed it over the edge," says Laurence Smith, a professor of environmental studies and earth sciences at Brown University. "The American West is going to have to need to learn how to do more with less."

In his interview with Short Wave co-host Emily Kwong, Laurence argues that implementing new approaches to managing rivers is essential for healthier waterways and sustaining the communities that depend on them. Moreover, strategic management today is the way to a better, climate-adapted future.

Are more watery wonderings surfacing on the banks of your mind? Toss us a line at [email protected]— we might cover your musings in a future episode!

Listen to Short Wave on Spotify, Apple Podcasts and Google Podcasts.

This episode was produced by Abe Levine. It was edited by Rebecca Ramirez and Gisele Grayson. Margaret Cirino and Rebecca checked the facts. Robert Rodriguez was the audio engineer.