Trump blames Canada for wildfire smoke, says he’ll add cost to tariffs

On Friday, US President Donald Trump attributed wildfire smoke affecting the United States to Canada. He announced plans to add the "incalculable cost" of managing this pollution to existing tariffs on Canadian goods. The smoke, originating from numerous Canadian fires, spread across the US from the Midwest to the Northeast on Thursday and Friday, leading to advisories for residents to remain indoors. Detroit was identified as the world's most polluted city on Friday, with Washington and Chicago also experiencing high pollution levels. Officials cautioned against spending excessive time outdoors due to the air quality.