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.

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.

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

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

Wildfires forced a further 1,000 people to flee their homes in Manitoba, one of two Canadian provinces under a state of ...

Wildfire smoke has sparked the national weather agency to issue air quality warnings around the county of Grande Prairie and ...

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

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

The Saskatchewan government is boosting support it's giving to wildfire evacuees, while officials say light rain and cooler ...