Multiple Philadelphia fire trucks are on the scene of a four-alarm blaze at an apartment building in West Philadelphia early ...

Winds from the northwest will pull wildfire smoke back into Minnesota skies over the weekend, as well a chance for rain ...

Recapping some of the most talked-about news this week from the nation and around the world – in case you missed it.

The air quality alert may need to be extended into Monday if an additional batch of heavy smoke materializes from Manitoba ...

Much of southern Ontario was under an air quality statement on Thursday and Friday that lifted early Saturday morning.

The Maine Department of Environmental Protection warns that unhealthy conditions may persist through the weekend.

Active children, the elderly and people with asthma and COPD are more likely to suffer an increase in the number and severity ...

Conditions are expected to gradually improve Sunday as winds dillute the fine particulate matter that affects health.

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

Wildfires have forced a further 1,000 people to flee their homes in the Canadian province of Manitoba, which is under a state ...

Much of Ontario remains under special air quality statements or warnings today amid smoke from wildfires burning in other parts of Canada.

Canada is facing widespread wildfires. Manitoba and Saskatchewan have declared emergencies. Many residents have been ...