Wildfire smoke returns to Minnesota on Sunday, sweeping in from the northwest to the southeast. An air quality alert is in ...

Minnesota and Canada share so much: frigid winters, a love for hockey — and more recently, massive plumes of toxic wildfire ...

Small particles can get lodged in crevices of organs from lungs to arteries, causing inflammation and other health issues.

This story was originally published by Grist with the headline As California burns, new research shows smoke is wildfire’s ...

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and ...

As well as trees and vegetation going up in flames during wildfires, ‘burning gas stations, homes and cars also put a toxic soup into the air’.

Hazy skies settled over Hampton Roads this week as smoke from wildfires in Canada moved over the region. For the past week, ...

Wildfire smoke doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the ...

Wildfire smoke can cause eye and throat irritation, coughing, wheezing, and shortness of breath — even for healthy people. It ...

Smoke drifting south from Canadian wildfires has made skies in Pennsylvania and other states hazy this week. The Pennsylvania ...

Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...