Residents in South Bay communities near the Tijuana River Valley can apply for a free air purifier through the San Diego ...

Atmospheric rivers are more common during the winter months, but officials are warning people not to let their guard down.

When a horrific firestorm enveloped Southern California in January, it affected everyone who calls the region home. Even those far from the burn areas had their lives transformed during the event and ...

First District Congress member Doug LaMalfa, chair of the Congressional Western Caucus and representative of Sutter County and most of Yuba County, is helping to lead an effort to eliminate California ...

Founder of Avelo Airlines said the government contract will provide the company with ‘stability’ to continue flying ...

By Ian Choudri When I accepted the CEO role at the California High-Speed Rail Authority, I understood the challenges ahead. Yet, the significance of this endeavor—the nation’s first true high-speed ...

Experts expect Trump's new tariffs will increase the price of electric trucks and buses, imperiling California climate goals.

The Tijuana River sewage crisis may be contributing to the current toxic algae bloom off the coast of Southern California, as the added nutrient load from the pollution is fueling the growth of ...

As the fires burned in Los Angeles, scientists and local air regulators deployed monitors to measure the levels of heavy ...

Though the new proposal would still help clean up the region’s smog-filled air, it stops short short of mandating heat pumps ...

Despite residents’ health complaints and community pushback, the airport’s operations continue to expand, intensifying ...

In a survey of 600 registered voters commissioned by The Oregonian/OregonLive, adults in the three-county Portland area said ...