A human rights group says that police in China detained two people Monday for protesting the government's approach to air pollution. One of the protesters was detained for slander, according to China ...

The waves of pollution called “smog” — a combination of “smoke” and “fog” — continued and the cause remained a mystery. It was the beginning of an epic struggle for clean air involving years of ...

It was 75 years ago when a deadly smog settled over the Washington County mill town of Donora. Over five days — Oct. 27-31, 1948 — the heavy smog killed 20 people in Donora and in nearby Webster, ...

A human rights group says police in China detained two people for protesting the government's approach to smog. A popular film about the same... A human rights group says that police in China detained ...