IQAir study finds that Chad, Bangladesh, Pakistan, India and the Democratic Republic of Congo have the dirtiest air.

Only seven countries met World Health Organization (WHO) air quality standards last year, data showed on Tuesday, as researchers warned that the war on smog would only get harder after the United ...

The John Beargrease Sled Dog Marathon, already delayed by more than a month, will begin Sunday north of Two Harbors at what has traditionally been the race’s first checkpoint. “Weather always plays a ...