As winter grips north India, here is a guide to terms like cold wave, frost, fog, smog and low visibility, what they mean, ...

Smog hangs in the air as the sun sets after a hot day in the Los Angeles Basin on Wednesday, Oct. 4, 2023. (Luis Sinco / Los Angeles Times) Federal prosecutors in Sacramento on Thursday unsealed an ...

Islamabad, once known as a city of parks and gardens, is now confronting a full-fledged smog season. Skies have turned ...

California regulators are scrapping a biodiesel rule related to smog concerns that the industry has long said isn't needed.

The winter smog has widened the affordability gap among residents, with many lower-income families lacking the means to buy ...

The 2025 smog season exposed deep gaps in pollution control and environmental planning. As Punjab looks toward 2026, experts ...

Pakistan, India and other countries in South Asia are shrouded in a layer of smog that is so thick, it's visible from space. Satellite imagery from NASA Worldview shows most of northern and eastern ...

Federal prosecutors in Sacramento on Thursday unsealed an indictment charging 12 people from around the state with violating the Clean Air Act in what they portrayed as a long-running, sophisticated ...