The Colorado River’s Lower Basin states published a proposal Wednesday for the watershed’s long-term operations, just hours after their Upper Basin peers unveiled a rival offer — and as talks… ...

One in 17 people. An often-repeated fact about the Colorado River is that it provides water to 40 million people in the Southwest. But perhaps an even more salient statistic is that 1 in 17 people ...

The Colorado River Basin is divided into two regions: Lower Basin states are Nevada, Arizona and California; Upper Basin states are Colorado, New Mexico, Utah and Wyoming.

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.

Despite some improvements in water conservation, Nevada is facing a fourth consecutive year of mandatory water cuts, as drought and climate change continue to threaten Lake Mead, federal officials ...