John Muir’s fabled Range of Light appears seemingly out of nowhere when a storm rolls across the central San Joaquin Valley, clearing our skies of dirty air, before quickly fading and disappearing ...

Bangkok residents were urged to wear masks as PM2.5 levels rise from February 6 to February 9. Report smoke-emitting vehicles ...

The Ministry of Natural Resources and Environment estimates that 30 percent of PM2.5 pollution in Laos is caused by the burning of garbage, forests, and farmland. Other major sources include vehicle ...

Light pollution is increasing globally, and having a negative impact on wildlife and humans. But the solutions are ...

Milan is the first major Italian city to place strong restrictions on where people can smoke outside. Cue the discontent.

State officials recently unveiled a broad home energy efficiency and electrification program, but it’s unclear whether the ...