Air-quality alerts have been posted in New York City, with 740 fires raging across Canada from the Arctic Circle to southern ...

A strike by thousands of workers that build fighter jets for Boeing at three U.S. plants is the second labor disruption for the plane builder in less than a year.

Smoke from more than 700 active wildfires in Canada is once again clouding skies and pushing air quality into dangerous ...

The current rankings indicate that Detroit is more polluted than Kolkata, one of India's largest cities, and every other city ...