CALISTOGA, Calif. (AP) — For residents of this quaint tourist town on the northern edge of Napa Valley, the threat of wildfire is seldom out of mind. The hillside bears burn scars from a 2020 fire ...

Water treatment is expensive. It uses a lot of energy and produces its own waste that gets disposed of at a hefty price.

Everyone knows what a river is, but do you know about the concept of an atmospheric river? The majority of water vapor ...

A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can ...

Becky Mitchell, Colorado’s lead Colorado River negotiator, delivered a peek into the dispute among states at a forum in ...