Republicans have ramped up their feud with Canada with a bizarre demand that the country’s northern neighbors stop their ...

Breathing in polluted air for extended periods of time can pose a serious health risk for people, especially for vulnerable ...

"It's just not pleasant," she said.Start the day smarter. Get all the news you need in your inbox each morning. Canadian wildfire smoke has worsened air quality in many parts of the United ...

A Newfoundland wildfire is forcing another 900 people to leave their homes as hot temperatures fuel multiple out-of-control ...