To many, atmospheric rivers are a West Coast phenomenon. But they’re also responsible for the devastating flooding that hit ...

The Mad River Hatchery raised generations of steelhead and anglers. Now, California is shutting it down for good.

Rescue centers are overwhelmed as disoriented animals wash ashore, victims of a fast-growing toxin fueled by warming waters ...

Sea mammals — seals, dolphins, whales — are dying from domoic acid from early algae blooms off LA County beaches ...

A commercial fisherman nabbed a large male Chinese mitten crab in the lower Columbia River late last month, putting ...

In a surprising scientific discovery, baby salmon have been found to take a far more complex journey than previously known ...

After several wet winters soaked California, the state's largest reservoir is nearly overflowing for the third year in a row.

One of California's largest reservoirs is on track to reach capacity for the third year in a row, a first-ever milestone.

Children and other sensitive groups in Oregon are facing potential adverse health effects, with an air quality map indicating ...

San Diego County communities have lamented public health impacts of sewage pollution in the watershed, which crosses from ...

In a major blow to the Paris ’15 climate agreement, last year witnessed one more nail in the coffin of the celebrated ...