Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put ...

An air quality map shows conditions across the United States on Wednesday as Canadian wildfire smoke is forecast to continue ...

Smoke from the Canadian wildfires continues to bring dangerous air quality to parts of the northern U.S., with hazy skies ...

Lightning, which is more common in hotter temperatures, is usually the cause of wildfires that burn the most land. In 2023, ...

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

Canada has one of the world's largest forests. It's experiencing heat and drought. It's a recipe for wildfires — and for ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

Wildfires torching buildings and forcing thousands of people from their homes in Western Canada are also creating smoke ...

Canadian wildfire smoke is fouling air quality in the US and several states, including Minnesota, Wisconsin, and Michigan, experience unhealthy air. Wildfire smoke has been fouling U.S. air quality ...

Uncontrolled wildfires in Canada are sending smoke southward, causing hazardous air quality across the U.S. The Midwest and Northeast are particularly ...