According to the world air quality report, IQAir, Montreal is the second most polluted city in the world, ranking ahead of Delhi in India and Santiago, Chile. And while Toronto recently surpassed ...

Poor air quality is affecting large swaths of the prairies, as well as central and eastern Canada. Smoke is drifting from ...

TUCSON, Ariz. (KGUN) — Five wildfires across Southern Arizona that started this year were human-caused, according to the U.S.

Environmental officials in Indiana and Michigan have issued air quality advisories over the next couple of days due to smoke ...