In California and beyond, responsibly managing and conserving mature forests is far more important to reducing atmospheric levels of carbon.

As climate change intensifies hurricanes, some scientists want a Category 6 for the biggest storms

Gov. Gavin Newsom said Thursday that California continued to rapidly add the battery storage that is critical to the transition to cleaner energy, but admitted it was not enough to avoid blackouts during heat waves.

Despite considerably back-to-back rainy winters in California, new research finds the region has seen much wetter years in the last 3,000 years. Experts worry that variability, coupled with climate change, could leave the state unprepared.

Vector control officials in Southern California are starting to release sterilized male mosquitoes to combat the summertime onslaught of ankle biters.

After identifying remnants of bird flu virus in grocery store milk, federal officials insist the nation's milk supply is safe.

The Port of Oakland is home to the United States' first commercial hydrogen fuel station for big-rig trucks. It's a step on the road to cleaner trucking.

L.A., Orange, Riverside and San Bernardino counties received a failing grade on air quality from the American Lung Assn. Again.

California has increased water allocations to 40% of full allotments from the State Water Project. Officials say environmental regulations have limited pumping.

Southern California steelhead trout have been pushed to the brink of extinction as their river habitats have been altered by development and fragmented by barriers and dams.

A jury sided with a former State Parks employee who said the agency treated him unfairly in part due to his Mexican heritage, awarding him $2.3 million.

State officials unveiled 81 targets to transform millions of acres in the Golden State into landscapes that can absorb more carbon than they release by 2045.

McKinley Elementary has designs to modernize its campus. But plans are being delayed, and costs are rising since dangerous vapors were found in the soil.

Giant sun shades, 40-foot-tall air filters, stratospheric sulfur injections: Here are some of the wild and wondrous ways we might save the planet.

North America's 2021 fire season, including massive Northern California blazes, was made worse by a supercharged heat dome. What did the supercharging? Climate change.

California has released 500,000 salmon into the Klamath River. As dams are removed, the fish will be some of the first to return to a free-flowing river.

A flood of cheap Chinese electric car exports has raised the specter of another trade war with the U.S. And it has Tesla worried.

Disney had previously committed to ditching gasoline engines but left open hybrids as a possibility.

California has set a limit for the toxic heavy metal hexavalent chromium in drinking water. Advocates have called for a stricter limit, warning of health risks.

News that Midwestern dairy cows may have become infected with avian flu by eating poultry waste has many asking: What are American farm animals being fed? And should we be concerned?

California's water board has for the first time put a farming region on probation for failing to adopt measures to curb excessive pumping of groundwater.

The drive to electrify personal cars in California has, at best, hit a rough patch. The big question is whether current conditions will turn out to be growing pains.

Angel Alba, who worked at Malibu-area state parks, alleges his supervisors denigrated him for being Mexican and retaliated when he complained.

Newly discovered damage in Glen Canyon Dam would require releasing less water at low reservoir levels a a problem that increases water risks in the Southwest.

Los Angeles, Portland and other progressive cities are still powered by faraway coal plants. We went to Montana to find out why.

Current conditions are promising, but L.A. must maintain its ethos of conservation and prepare for an inevitable return to dry times ahead, LADWP officials say.

As the avian flu continues to threaten poultry farms and wildlife, are factory farms a sitting duck?

The women who started ChargerHelp are driven to succeed and to train a workforce of people who are often overlooked. They're also addressing a major issue with EV charging in California: reliability.

Officials have decided to ban salmon fishing on the California coast for a second year. Salmon populations have dropped after the state's last drought.

The pup could become Aquarium of the Pacific's first surrogate-raised otter to return to the wild a if she masters the skills needed to hack it in the ocean.