Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Wildfire season is upon us, and smoke is reducing air quality through swaths of the country. Environment Canada suggests ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Parts of the Greater Toronto Area (GTA) are under an air quality warning on Monday alongside an ongoing heat warning in the ...

As extreme heat continues to cast over the city of Toronto, Environment Canada is warning of poor air quality on Monday.

Warnings were issued for southern Ontario and southwest Quebec as hot and humid weather is expected to linger through ...

Risk designations can change regularly in the same community, Environment Canada says, so it's important to keep checking the air quality forecast.

Environment Canada has issued a special air quality statement for Hamilton and Halton areas for July 14. The air quality is ...

Environment Canada has issued a heat warning for Greater Sudbury, with hot and humid conditions expected from Tuesday to ...

Environment Canada issued an Air Quality Warning Friday morning for all of southeastern Manitoba. Wildfire smoke from ...

Amid a heatwave that led to Environment Canada issuing a heat warning late last week, the national weather agency has added ...

Environment Canada says we can expect a warmer than normal summer. But Senior Climatologist David Phillips says just how much ...