Nearly two dozen wildfires were burning in the Canadian province of Manitoba, just north of Minnesota and North Dakota.

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

To check your state's air quality, visit AirNow's website, and plug in your zip code, city or state. Here's what to know as of Wednesday, June 4. Parts of Wisconsin, Iowa, Illinois, Indiana and ...

PORTLAND, Maine — Smoke from Canadian wildfires started making air quality worse in the eastern U.S. on Wednesday as several ...

Federal prosecutors charged two Chinese researchers on Tuesday with smuggling a crop-killing fungus into the U.S. last summer ...

Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in ...

A red advisory for unhealthy air will continue for southern and eastern Wisconsin until noon Thursday, the Wisconsin ...

Smoke from Canadian wildfires and desert dust from the Sahara are creating unhealthy air quality from New York City to Miami.

-Detroit's air quality is unhealthy for sensitive groups Wednesday as Canadian wildfire smoke spreads as far as Europe.

"The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for elevated levels ...