How a mix of natural and human-caused factors cooked up Tropical Storm Hilary's soggy mess

A natural El Nino, human-caused climate change, a stubborn heat dome over the nation’s midsection and other factors cooked up Tropical Storm Hilary’s record-breaking slosh into California and Nevada, scientists figure.

Wildfire smoke leads to air quality advisory in Bay Area

An air quality advisory for the Bay Area has been extended through Tuesday, due to smoke from multiple wildfires in California.

Abandoned cars removed from East Bay watershed

Workers removed four sunken vehicles that were dumped into a watershed next to a reservoir that provides drinking water in the East Bay on Wednesday. 

EPA investigates alleged racial discrimination by California Water Board

Native American tribes and other groups claim California discrimianted against them by not protecting water quality in the SF Bay and Sacramento-San Joaquin Delta.

United airlines cancels all flights going to Maui, sends empty planes to bring passengers back to mainland

United Airlines is apologizing for the inconvenience and is working to get passengers to their destinations as soon as possible but the safety of their passengers is their main concern.

Los Angeles County community under quarantine due to invasive Tau fruit fly

In order to prevent further spread, residents living in the quarantine area are urged not to move any fruits or vegetables from their property.

July on track to be Earth's hottest month on record

Another month of record-breaking heat has brought the world into uncharted territory, scientists say.

Toxic 'coke dust' released from Martinez Refining Company

Coke dust, a petroleum refining byproduct, was released Saturday evening from the Martinez Refining Company's facility, the Bay Area Air Quality Management District announced. 

Falling tree injures 6 people at Santa Rosa park

A falling tree in Spring Lake Park in Santa Rosa left six people injured Saturday morning.

Health department says Martinez refinery delayed notification of 'coke dust' release by nearly two hours

Health officials said there was a nearly two-hour delay from when the refinery first noticed the release of the material at 8:30 a.m. and when they notified the health department through a community warning system at 10:20 a.m.

Leonardo DiCaprio to fund scholarships, climate education at his former LA elementary school

Leonardo DiCaprio will fund scholarships and a climate education program at the UCLA-based elementary school where he was once himself a scholarship student, the actor and the college said Tuesday.

Climate change ratchets up the stress on farmworkers on the front lines of a warming Earth

As Earth this week set and then repeatedly broke unofficial records for average global heat, it served as a reminder of a danger that climate change is making steadily worse for farmworkers and others who labor outside.

California Air Resources Board makes uncommon concession to diesel truck manufacturers

In an almost unheard of move, the California Air Resources Board decided to compromise with diesel truck manufacturers and trucking associations that were suing the state over regulations they say were unobtainable in the time allowed.

Drinking water from nearly half of US faucets contains PFAS, study says

PFAS chemicals have been linked in animal studies to some cancers, including kidney and testicular, plus issues such as high blood pressure and low birth weight.

Earth sees hottest day on record for third straight day

The daily highs are an indication that climate change is reaching uncharted territory, scientists say.