North American wildfire smoke affects flights, air quality

Canadian wildfire smoke drifts into the US

Canadian wildfire smoke affecting air quality conditions in U.S.

1 dead, multiple 'unaccounted for' after north Edmonton apartment fire

Terrifying moment as train passes through forest fires in Ontario

Residents still missing after apartment fire

Midwest sees world's worst air quality as wildfire smoke spreads

Orange skies over parts of US and Canada engulfed in wildfire smoke

Canada wildfire smoke continues to bring unhealthy air quality to Midwest, Northeast