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

The long-held understanding that baby salmon emerge from the streams where they hatched to head out to sea actually is ...

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

Now, coastal towns that once relied on freshly caught seafood are finding ways to adapt. In Bodega Bay, fishing has ...

Marin County’s water supply could get a healthy boost during wet years if a pipeline project initiated this week by the Marin Municipal Water District ...

Coast Guard rescue missions failing after running into unexpected currents. Surprise atmospheric river storms flooding downtown San Francisco. Seafood contaminated by unseen algal blooms. California ...

The Argo program collects data vital to global weather forecasting and developing seasonal scale forecasts like El Niño and La Niña, for producing drought forecasts across the U.S., and for mapping ...

Since February, marine rescue centers have been overwhelmed responding to sea lions, dolphins and birds found sick and dying ...

Since February, marine rescue centers have been overwhelmed responding to sea lions, dolphins and birds found sick and dying ...

The past six months have proven to be a tale of two Californias when it comes to atmospheric river events. While Northern ...

Environmentalists and Newsom administration on defense, but pledge to use state laws and lawsuits to fight rollbacks ...

Fifteen years after the Deepwater Horizon oil rig exploded off the Gulf Coast, killing 11 and sending 134 million gallons ...