As the amount of water in the Colorado River shrinks, more farms and cities are turning to groundwater, which is less ...

Researchers found massive depletion of the region's groundwater, adding more stress to the drought-stricken Colorado River.

Deep below the surface of the ground in one of the driest parts of the country, there is a looming problem: The water is ...

Arizona Senate President Warren Petersen (R-Gilbert) suggests desalination should be a part of ongoing Colorado River ...

Federal agencies have finished digging out a side channel below Glen Canyon Dam that's been a breeding ground for nonnative ...

As the Colorado River’s reservoirs have declined, even larger amounts of groundwater have been drained from aquifers. Using ...

Overuse and climate change are rapidly depleting groundwater throughout the region, but aquifers are not part of the ...

On its surface, floating solar appears to conserve water while generating carbon-free electricity. River managers are ...

The Colorado River Basin has lost twice as much groundwater since 2003 as water taken out of its reservoirs, according to a ...

Actual farms, not the data center variety, are sucking up groundwater more quickly than surface water from reservoirs such as ...

As the Colorado River shrinks due to drought and climate change, the negotiators must decide who will take less water — and they need to do so in the next few months.

It sounds unbelievable—but Arizona once mobilized troops and launched a “navy” in a standoff with California. We revisit the Parker Dam and the bizarre battle for control of the Colorado River.