The start time for the MLB game between the New York Mets and the Phillies on Thursday in Philadelphia was moved up an hour due to air quality concerns because of wildfire smoke from Canada and northern Minnesota, and an MLS game in Chicago was postponed.
Heavy, pungent wildfire smoke darkened skies in the U.S. from the Great Lakes to parts of the East Coast, reducing visibility and prompting warnings that breathing the air outside could be dangerous.
