If Arizona’s Colorado River water allocation was cut to zero, “we could burn through the available groundwater in 50 years,” Famiglietti said. “We’re talking about decades. That’s scary.

They estimated that annual groundwater losses in the Colorado River Basin have averaged more than 1.2 million acre-feet — about four times larger than the amount of water the Las Vegas area is ...

The Colorado River Basin’s groundwater supplies are dwindling, thanks to a combination of both natural events and human pumping activities, a new study has found. The critical Western system has ...

Science Colorado River Basin Aquifers Are Declining Even More Steeply Than the River, New Research Shows Overuse and climate change are rapidly depleting groundwater throughout the region, but ...

Shanna Lewis/KRCC News Hundreds of water managers and water users attended the 30th Annual Arkansas River Basin Water Forum in Pueblo, Colo., on March 5, 2025. Heather Dutton leads the San Luis ...

China's mighty Yellow River has always been a cruel and capricious neighbor to the 140 million people—a fourth of China's populace—who live near its banks. In the past 3,000 years ...

The Colorado River Basin has lost twice as much groundwater since 2003 as water taken out of its reservoirs, according to a study based on satellite data. May 27, 2025. 5 min. Summary.

The Trump administration ruined what should have been a good spring in the Klamath River Basin. By abruptly laying off federal personnel and freezing payments for already authorized programs and ...

The Colorado River provides drinking water to nearly 40 million people and supplies water to irrigate over five million acres of farmland across seven western states and is vital to agricultural and ...

The amount of groundwater that has been pumped out of the Colorado River Basin since 2003 is enough to fill Lake Mead, researchers report in a study published earlier this week.

Groundwater in the Colorado River Basin has declined rapidly, with about 34 km 3 lost since 2003—over twice the volume lost from surface reservoirs.