Melting snow from California's Sierra Nevada is filling reservoirs. But dry conditions have shrunk the flow of the Colorado ...

Storm-hunting planes chase atmospheric rivers through the sky from Japan to the US, revealing new insights into these powerful storms and how we can keep ourselves safe.

Atmospheric rivers are responsible for most flooding on the West Coast of the U.S., but also bring much needed moisture to ...

Atmospheric rivers are responsible for most flooding on the West Coast of the U.S., but also bring much needed moisture to the region. The size of ...

A study by UC San Diego researchers reveals that pollutants found in the sewage-laden Tijuana River are ending up in the air ...

LOS ANGELES – Torrential rains from a potent atmospheric river soaked nearly the entire state of California Thursday, triggering flash flooding up and down the state and transforming burn scars ...

Related: Strengthening atmospheric river poised to bring significant rainfall to Northern California Live storm map: See where rain is hitting California and Bay Area By Saturday morning ...

Levels of the toxin microcystin has been detected in Lake Erie weeks earlier than usual, according to the National Oceanic and Atmospheric Administration.

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater — including sewage, industrial waste and runoff — into the Pacific Ocean ...

To save the Southern Residents, we will need to put organized, consistent pressure on our elected representatives.

Coastal air samples around San Diego showed high levels of pollutants, including drugs and sunscreen chemicals.