If you’re traveling in the Northeast or Upper Midwest in this country, or in Europe, this is developing into the summer of smoke.

Wildfires in Canada drifted into at least 17 U.S. states, and includes the Great Lakes, New England, Michigan, Wisconsin and Minnesota. In Europe, wildfires in France are covering much of the continent in smoke.

Your choices for summer fun may be limited to indoor activities, so monitor Air Quality Index at your destination, and bring along an N95 mask, just in case.