Another large fire exacerbated by climate change is threatening the health of Chicagoans. Government officials issued an air pollution "action day" on Thursday.| Chicago Sun-Times
Canadian wildfires ”are going to burn all summer and into the fall. We might be under the gun again,” one expert says. But an Argonne National Laboratory scientist sounds a hopeful note on climate change: “We can do something about it. It is a result of our actions.”| Chicago Sun-Times
Conditions were expected to improve as winds push the mass south overnight into Wednesday, according to the National Weather Service. Those with respiratory issues were warned to stay indoors or wear masks.| Chicago Sun-Times
Keep track of the most polluted cities in the world with our air quality index (AQI) ranking.| www.iqair.com