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

In letters expressing outrage and indignation, Republican lawmakers are demanding more forest thinning, prescribed burns and ...

Like much of the U.S., Chicago was under a thick hazy blanket of wildfire smoke, creating dangerous conditions for anyone who ...

Smoke from Canadian wildfires is expected to impact Michigan's summer air quality going forward, according to climatologist.

The hazy air hovering over US cities, including Chicago and New York, this summer is reminding Americans of just how ...

Canada's second-worst wildfire season on record has already burned 7.8 million hectares and could continue for weeks, federal ...

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

Some Team P.E.I. athletes are back on the Island after taking part in the Canada Games, where their competition was ...

As Canada’s wildfire smoke creeps down into the U.S., it’s also transforming. Chemical reactions between gases and sunlight create ozone, which further exacerbates lung conditions like asthma.

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.

As Canada’s wildfire smoke creeps down into the U.S., it’s also transforming. Chemical reactions between gases and sunlight create ozone, which further exacerbates lung conditions like asthma.

Canada and the U.S. are seeing a virtual repeat of 2023, when smoke from wildfires from some of the same regions lingered over the U.S. Midwest for days. "We are again having a remarkable start to ...