Baltimore is plagued by a silent killer: air pollution. But there actions we can all take to improve the situation, writes.

HANOI, Vietnam (AP) — Everyone loves a breath of fresh air. Unfortunately, too often our air is anything but fresh.

Australia ranks among the best in the world for air quality, but with worsening climate change and an ever extending bushfire ...

Electrifying heavy-duty trucks reduces on-road emissions but shifts pollution burdens to power plants, with disadvantaged ...