Southern California's strongest atmospheric river storm of the winter is arriving Thursday, and it's expected to bring significant flooding to roads and a high risk of landslides. Here's what you need ...

For the first time in a half century, tidal flows of seawater are now pouring into an area known as "Pond 15," a crucial step toward wetland restoration in the area.

Households near the Tijuana River, where sewage overflows have caused poor air quality, must file an application and prove ...

The items are intended as a temporary measure while the International Boundary and Water Commission and other entities work on permanent solutions.

A new rain storm is bearing down on California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.