Smoke from Canadian wildfires leads to MLB postponements, roof closures
Smoke from Canadian wildfires ravages northern US, triggers air quality alerts Smoke from Canada’s wildfires blankets major northern U.S. cities, triggering hazardous air quality alerts in 15 states for more than 100 million Americans. Health experts point to serious long-term and short-term risks from fine particles, including worsening asthma, heart disease and potential cancer risks. […]
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