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Arizona, Nevada Agree to Trade for Desalinated Pacific Ocean Water

A decade-old treatment plant in San Diego County, Calif., could leave more water in the Colorado River for states facing severe shortages.

© Sandy Huffaker for The New York Times

From left, Dan Denham of the San Diego County Water Authority; Scott Cameron of the U.S. Bureau of Reclamation; Tom Buschatzke of the Arizona Department of Water Resources; and Colby Pellegrino of the Southern Nevada Water Authority toasted the agreement at the Carlsbad Desalination Plant in California on Wednesday.
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A Powerful El Niño Is Forming. If History Is a Guide, It Could Hit Hard.

The biggest episodes of the past have altered the course of human events, according to researchers. An emerging one is drawing historic comparisons.

© Dea/Biblioteca Ambrosiana, via Getty Images

An illustration published in 1877 depicted a scene in southern India. Millions died from a famine that coincided with an El Niño that year.
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