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A new study finds fertilized soil is a major driver of smog-forming pollution near the Salton Sea.

The National Weather Service issued warnings of critical wildfire weather in portions of Los Angeles and Ventura counties as well as the Inland Empire and San Bernardino Mountains.

California farms export billions of dollars' worth of crops to other nations. Trump's tariff plans could trigger retaliation, harming the industry.

A second CA child has tested positive for H5N1 bird flu in Marin Co.; confirmation needed from CDC ...

A new study found mountain lions in the L.A. area are shifting to a later schedule to avoid people, a hopeful coexistence strategy that may have downsides.

An unusual warm weekend followed by dry conditions and gusty Santa Ana winds is expected to bring elevated fire danger to Los Angeles and Ventura counties next week.

The USDA announced Friday that it will begin testing for H5N1 bird flu virus in milk throughout the nation.

Three hospitals run by Santa Clara County illegally dumped hazardous waste, including human tissue and fentanyl, over the last year, the local district attorney said.

State lawmakers implored community members to hasten Aliso Canyon's closure by consuming less gas and turning to electric appliances.

The Scripps Research Institute finding counters prevailing thought that the virus would require multiple mutations before it poses a threat to public health.