As the Colorado River’s reservoirs have declined, even larger amounts of groundwater have been drained from aquifers. Using satellite data, scientists have estimated the vast water losses.

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 ...

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.

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 ...

In 2024, the basin saw peak snowpack about 5% above the median, but runoff was 17% below the median. While 2023 had huge snow (50% above normal) runoff exceeded its median by a smaller amount (40%).

Utah will give farmers an incentive to leave fields fallow — then hopes to get "credit" for the saved water, in negotiations about the Colorado River.