Second-hand smoke in urban areas and fire-wood smoke in rural areas blamed for lung diseases among non-smokers ...

AUGUSTA (WGME) – The city of South Portland is considering a ban on gas-powered leaf blowers. The city council is discussing ...

Reducing sulfur in the air may inadvertently increase natural emissions of methane from wetlands such as peatlands and swamps ...

Impact of cleaner air means that human-emitted methane needs to fall more sharply to hit globally agreed targets ...

These are questions I’ve often asked myself – usually on those rare, wondrous high-visibility when the Sierra is staring us in the face. What peaks, ridges and river drainages ...