This is the second-most severe wildfire season in Canadian history, after 2023, with 15 million acres burned so far.

As wildfires become more frequent and intense across Canada, fire officials are seeing stark differences between northwestern ...

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.

This story was originally published by Grist. Sign up for Grist’s weekly newsletter here. More than 200 wildfires are blazing across central and western Canada, half of which are out of control ...

Wildfires have damaged six hydro poles in northwestern Ontario, causing outages in as many First Nations, and raising ...

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.