Smoke from Canadian wildfires reaches US, Minnesota under air quality alert ABC NewsCanada Wildfire Smoke Again Reaching US – Videos from The Weather Channel The Weather ChannelCanadian wildfire smoke chokes upper Midwest for second straight year Yahoo! VoicesMinnesota and Wisconsin See Air Quality Warnings From Canadian Wildfires The New York TimesThousands evacuate as wildfire grows ‘dramatically’ in western Canada Al Jazeera English