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

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

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

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 ...

Over 470 blazes are currently 'out of control,' according to the Canadian Interagency Forest Fire Centre. Military and coast ...

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.

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.

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.

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 ...