Air quality alerts return to millions in US ahead of smoke impacts from Canadian wildfires
Canadian wildfire smoke creates unhealthy air quality across Pittsburgh area
US East Coast blanketed in veil of smoke from Canadian fires
The summer of wildfire smoke was only the beginning
Mariners doubleheader with A's still scheduled to be played despite air-quality issues
Washington Nationals game postponed due to hazardous air quality in DC from wildfire smoke
See pictures from a smoky night at Wrigley Field on Tuesday
US sports leagues postpone games amid air quality concerns from wildfire smoke, US sports
Where is Canada wildfire smoke affecting US air quality? Map, updates.
MLB, WNBA postpone games due to smoke from Canadian wildfires
New York enveloped in thick smog as wildfires burn in Canada, News UK Video News
Wildfire smoke postpones MLB, WNBA games Wednesday – NBC New York
MLB games affected by smoke: Latest updates and delays for Cubs-Phillies, Padres-Cardinals after Canadian Wildfires