Air quality over the US and Canada is slowly getting better. But the threat of more wildfires sending smoke across the border looms
Air quality alerts triggered in New York as Canadian wildfire smoke blankets Northeast
NYC landmarks are blanketed in smoke pouring across the Northeast from Canadian wildfires
Photos show New York haze caused by Canada wildfire smoke
NYC landmarks are blanketed in smoke pouring across the Northeast from Canadian wildfires
See it in photos: Smoke from Canadian wildfires engulfs NYC in hazy blanket - CBS News
Wildfire smoke makes New York air quality worst in the world
NYC landmarks are blanketed in smoke pouring across the Northeast from Canadian wildfires
Air quality concerns continue into Thursday as wildfire smoke covers Northeast
NYC and the Northeast brace for two more days of hazardous smog from 400 Canadian wildfires
NYC landmarks are blanketed in smoke pouring across the Northeast from Canadian wildfires
Photos: Canada wildfire smoke shrouds iconic American landmarks