The second atmospheric river in a pair of storms will bring more rain and cooler temperatures to the Los Angeles area.

Light pollution has long troubled astronomers, who generally shy away from deep sky observing under full Moon skies. The ...

Human-caused climate change was responsible for about a quarter of the fuel available for the wildfires that have devastated the Los Angeles area ... the “atmospheric river” storms that ...

The smoke may be temporary, but toxic air pollution is an ever-present danger with effects that linger for generations.

The first storm from the tail end of an atmospheric river brought light to moderate rain throughout the Los Angeles area.

The hazardous air quality in Los Angeles is largely a result of smoke from the Pacific Palisades Fire, intensified by strong Santa Ana winds.

Environmental groups are applauding a Los Angeles Superior Court ruling they say strengthens stormwater regulations at the Santa Susana Field Lab, limiting toxins and radioactive waste in the Los ...

The American Lung Association’s State of the Air report for 2024 listed the Los Angeles area as one of the top 10 cities polluted by year-round particle pollution. It’s been No. 1 for ozone ...

As the smoke clears from devastating Los Angeles wildfires, efforts to clean up the affected areas are being complicated by burnt-out electric and hybrid vehicles and home-battery storage systems.

LOS ANGELES — Disaster is in the air. It clouds the skies, it sears the eyes, it lodges in the lungs. Most of all, it weighs on the heart. For those who have lost it all, the pain is acute.