Smoke from wildfires burning in Canada and parts of the U.S. will continue to waft over parts of the northern U.S. and Plains this week, leading to unhealthy air quality for some. Below you'll find ...

(KRON) — Smoke plumes billowing out of raging wildfires in the Pacific Northwest are forecast to drift into the San Francisco Bay over the next 48 hours. Bay Area Air District officials extended an ...

This week, several major wildfires are burning across Canada. Though wildfires are expected as part of an annual cycle, they still pose a threat to animals, people, and property—and air quality. And ...

Wildfires blazing in the West have spread hazardous smoke into several states, sending two U.S. cities into the top rankings for worst air quality in the world. Seattle and Portland ranked in the top ...

Heatwave wildfire smoke days now reach about 916 million people a year, and the heaviest burden falls on countries rarely ...

Blackened skies and an apocalyptic orange haze have returned to the U.S. and Canada as toxic smoke from out-of-control wildfires creates hazardous conditions for millions of people. Air pollution was ...

The air quality in much of the northern United States remains at dangerous levels as dense wildfire smoke from Canada continues to travel across the border. The National Weather Service (NWS) notes in ...

Add Yahoo as a preferred source to see more of our stories on Google. (KRON) — Smoke plumes billowing out of raging wildfires in the Pacific Northwest are forecast to drift into the San Francisco Bay ...

Add Yahoo as a preferred source to see more of our stories on Google. Wildfires blazing in the West have spread hazardous smoke into several states, sending two U.S. cities into the top rankings for ...