Officials revealed warning signs in South Bay hotspots amid ongoing Tijuana River pollution, with efforts to inform and protect affected communities.

City and county leaders Wednesday unveiled warning signs at several "hot spots" in the South Bay where high levels of hydrogen sulfide gas from the Tijuana River pollution crisis have been recorded.

The signs alert residents to the dangers of toxic gases and contaminated air at two Tijuana River sewage hot spots.

Arizona will again go without 18% of its total Colorado River allocation, while Mexico loses 5%. The reduction for Nevada — ...

Tijuana River Valley Regional Park and Saturn Boulevard in San Diego bear new signs, where high levels of hydrogen sulfide ...

The San Lorenzo flows to the Monterey Bay at its river mouth on Main Beach as waves crash along the shore. Flowing from its ...

As Californians recover from fires and Gov. Gavin Newsom tries to fast-track the Delta Conveyance Project, we must learn from our past.

Train derailments involving spills of 1,000 gallons or more of hazardous materials happen a few times a year, often resulting ...

Gov. Gavin Newsom is pushing his proposal for a 45-mile water tunnel beneath California's Delta, saying it's vital for the state. Opponents argue the cost to ratepayers would be excessive.