Issues

This map shows total rain and snowfall in the contiguous United States, every month from 1981 to the present. The map's color scale runs from white (no precipitation), to blue (significant precipitation) to red (intense...

On a warm morning in Palisade, Colorado, Bruce Talbott walks through his orchards, picking and discarding peaches he knows won’t sell. With just one look, he can tell how...

Southwestern Colorado’s Blue Mesa Reservoir, drained by years of drought and a major release of water designed to aid a plummeting Lake Powell, is experiencing a rebirth this summer.

Scientist Adrienne Marshall explains why these extreme snow years are expected to decline in our warming world.

Loss of forest canopy and deposition of ash alter forest hydrology

With talks looming on a new operating agreement for the river, a debate has emerged over the best approach to address its challenges.

Deep below Arizona sit large volumes of water that are less salty than the ocean, but not easily used. If it were all pumped to the surface and purified, this brackish groundwater would supply Arizona’s water needs for a century or more. Problem is, it can’t all be pumped.

In Arizona, finding water in the wilderness means discovering a source of life. 

Colorado has approved a $1.9 million snow measuring initiative that will help forecast how much water mountain snowpack will likely generate.

As the gap between water supplies and demands narrows in northwestern Colorado, state officials want to ensure that, as best as reasonably can be done, every last drop gets measured and recorded.