Environment Canada says smoke from forest fires is causing reduced visibility and poor air quality that is expected to ...

Ottawa and much of south and southeastern Ontario can expect poor air quality this weekend as wildfire smoke returns, ...

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

S moke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...

Wildfire smoke from the Prairies has prompted a special air-quality statement over much of northern Ontario Saturday.

Evacuation orders related to a wildfire northwest of Nanaimo, B.C. on Vancouver Island have been expanded as blazes cause ...

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those breathing it.

Wildfire smoke from the Prairies is drifting towards the Greater Toronto Area, prompting Environment Canada to issue a ...