With 2025 being ushered in by the most devastating natural disaster in U.S. history, and the Trump administration retreating ...

Los Angeles residents will have to cope with the effects of smoke-related unhealthy air, the Los Angeles County Health ...

California's wildfires underscore the urgent climate crisis. The Trump administration's rollback of climate policies ...

Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

California has to shift to zero-emissions trucks and trains in the coming years. Diesel is one of the most dangerous kinds of air pollution for human health, and California’s diesel problem is ...

As new laws take effect for Californians this year, one rule affecting ... Tired of seeing the region’s air quality worsen, former California state senator Dean Florez introduced a bill in ...

California has to shift to zero-emissions trucks and trains in the coming years. Diesel is one of the most dangerous kinds of air pollution for human health, and California’s diesel problem is ...

California has to shift to zero-emissions trucks and trains in the coming years. Diesel is one of the most dangerous kinds of air pollution for human health, and California’s diesel problem is ...

California's wildfire smoke is being blown over the Pacific Ocean. Even so, air quality has been poor so far in 2025. “It’s been a rough start for us this year in terms of air quality,” said ...

“It will probably take us at least two years ... to the California Air Resources Board. Local conditions, like nearby burned structures, matter more than general air quality readings, experts ...

As people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air inside and be especially cautious when cleaning up. Smoke, ash and all the ...

Recent data from the Environmental Protection Agency shows air quality in certain regions of the U.S. is deteriorating, ...