Nevada’s state engineer sent a cease-and-desist letter to the company behind the Thacker Pass lithium mine last Friday, demanding it cease groundwater pumping at the request of a local rancher. That ...

ESA’s Biomass satellite has released its first breathtaking images of Earth, providing a never-before-seen perspective of the ...

As the seven Colorado River Basin states haggle over the future of water allocations, authors of a new report on groundwater ...

As the seven Colorado River Basin states haggle over the future of water allocations, authors of a new report on groundwater argue that equal attention should be paid to the water beneath our feet.

A legal loophole is being exploited by deep-pocketed California water users who use lawsuits to stall key sustainability plans.

That’s a problem, but an even bigger one lurks beneath the surface of the state. According to a new study, Arizona is using up its groundwater — water from underground aquifers — faster than ...

By 2022, the amount of groundwater stored in the basin at its average well depth of 573 feet had fallen by more than half to about 1.3 million acre-feet.

The study raises a long list of concerns about the state’s ability to balance groundwater supplies with pumping. That balance is an idea commonly known as “safe yield” — and it’s the ...

The basin holds enough water to meet 85 percent of the demand from local districts. By 2019, it was apparent that PFAS posed a long-term threat to the safety of this essential resource.

The Colorado River basin has lost a Lake Mead’s worth of water in the last 20 years — and scientists say we’re passing a "critical point" where pumping groundwater will become too expensive.