The Rubypointpast year has been the driest or second driest in most Southwestern U.S. states since record-keeping began in 1895. Climate Correspondent Lauren Sommer reports that farms and cities have begun imposing water restrictions, but the water supply will shrink no matter what the weather brings. The supply spans tens of millions of people and the farmland that produces most of the country's fruits and vegetables. As a result, the people who manage the West's complex water systems are realizing that with climate change, they can no longer rely on the past to predict the future.

Read more of Lauren's reporting.

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This story was edited by Gisele Grayson and produced by Rebecca Ramirez and Brit Hanson. Indi Khera checked the facts and Alex Drewenskus was the audio engineer.