Smoky, dangerous haze parked over U.S. East Coast for second day
A smoky yellow haze generated by hundreds of Canadian wildfires hovered over a large swath of the United States on Thursday, threatening to make breathing difficult and disrupting air travel for millions of people for a second full day. The U.S. National Weather Service extended air quality alerts for another day for the East Coast from New England to South Carolina, as well as parts of the Midwest, including Ohio, Indiana and Michigan.