CatastropheNorth AmericaCanada wildfires cover US northeast in smog01:37This browser does not support the video element.CatastropheNorth AmericaGasia Ohanes06/07/2023June 7, 2023The air in much of the US northeast has turned into thick red smog, from hundreds of wildfires burning in Canada. Officials in many cities are urging residents to stay indoors as pollution levels turn hazardous. Copy linkAdvertisement