Experts lay bare the health effects of breathing in wildfire smoke and the steps that can be taken to reduce one's risk.

Do the sunsets on Cape Cod look different to you this week? Here's how Canada's wildfires could be affecting how they look ...

Smoke from Canada’s wildfires caused hazardous pollution last week in the eastern US. What are the short- and long-term effects? CNN Medical Analyst Dr. Leana Wen explains.

When the smoke was first hitting the U.S. in early June, it took New York City 's typically "good" air score on the Air Quality Index and turned it into one of the highest amounts of air pollution ...

It’s not promo for the Barbie movie, or a large-scale gender reveal in Maine — the purple-pink smoke seen billowing from the stacks of an energy plant has another explanation.