The blazes have destroyed nearly 15 million acres of land, and the fire season is expected to go into September. With it comes the threat of smoky days in Minnesota and North Dakota.

Wildfires in Canada are continuing to blanket its southern neighbors in smog, triggering new air quality alerts in the northern high plains, Midwest and Great Lakes, according to the National ...

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel hundreds of miles or more from fire sources to affect air quality and public health in distant communities. That smoke can also include toxins, such as lead when cars and homes burn.