State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

If you were planning to be outdoors on Saturday, you might want to reconsider. That's because an air quality alert has been ...

New York, Boston and much of the Northeast can expect to see smoky skies as smoke from Canadian wildfires blows into the area ...

Park officials have closed access for the rest of the year to the Grand Canyon's North Rim, a less popular and more isolated ...

A historic lodge on the Grand Canyon's North Rim along with 50 to 80 other structures have been destroyed by a wildfire.

Six members of Congress from Wisconsin and Minnesota have asked Canada to say how it plans to tackle the blazes and reduce the haze billowing south.

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

CLIMATEWIRE | When wildfire smoke wafted from Canada across large swaths of the U.S. in 2023, it served as a wake-up call for federal safety experts. They drafted recommendations to protect ...

More than 200 wildfires are blazing across Canada, forcing 27,000 people to evacuate and creating hazardous air quality all over the U.S.

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts says climate change means U.S. residents better get used to it.

PORTLAND, Maine — Smoke from Canadian wildfires worsened air quality in the eastern U.S. on Wednesday as several Midwestern states battled conditions deemed unhealthy by the federal government.

The smoke from Canada’s wildfires may be even more toxic than usual A legacy of mining means that toxic metals could be carried along plumes of smoke.