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Groundwater is rapidly declining in the Colorado River Basin, satellite data show

US-NEWS-ENV-COLORADO-RIVER-GROUNDWATER-LA

The Central Arizona Project canal runs beside a community in the suburbs of North Phoenix in 2022.

As the Colorado River’s giant reservoirs have declined during the last two decades, even larger amounts of water have been pumped and drained from underground, according to new research based on data from NASA satellites.

Scientists at Arizona State University examined more than two decades of satellite measurements and found that since 2003 the quantity of groundwater depleted in the Colorado River Basin is comparable to the total capacity of Lake Mead, the nation’s largest reservoir.





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