Canadian wildfires are causing the worst air in the US in cities like Chicago and Detroit

A person walks along the shore of Lake Michigan as the downtown skyline is blanketed in haze from Canadian wildfires Tuesday, June 27, 2023, in Chicago. (AP Photo/Kiichiro Sato)

CHICAGO (AP) — Drifting smoke from the ongoing wildfires across Canada is creating curtains of haze and raising air quality concerns throughout the Great Lakes region and in parts of the central and eastern United States.