Millions under air quality alerts from Canadian wildfires

Toxic smoke more than a hundred wildfires in Canada is drifting across the country, impacting millions of Americans in the Midwest and Northeast. SUBSCRIBE to GMA:    / @gma   SIGN UP to get the daily GMA Wake-Up Newsletter: https://tinyurl.com/yc34mz6t To read the full story and others, visit http://www.goodmorningamerica.com FOLLOW: TikTok:   / gma   Instagram:   / goodmorningamerica   Facebook:   / goodmorningamerica   Threads: https://www.threads.net/@goodmorninga... X:   / gma   Watch full episodes of GMA: https://abcnews.link/8SAXtIX Watch full episodes of GMA3: https://abcnews.link/8aZfnmd Watch full episodes of GMA First Look: https://abcnews.link/LxV2S7H