Massive wildfires raging across Saskatchewan, Manitoba, and Ontario have forced over 17,000 evacuations and triggered states of emergency. Driven by dry air, heat, and high winds, the blazes have already scorched 1.8 million acres. Smoke is now drifting into the U.S., with air quality alerts issued in Minnesota, Wisconsin, and Michigan. Forecasts warn that smoke will spread into the Ohio Valley and Carolinas, bringing health risks from fine particles. Experts say wildfire smoke is now one of the most dangerous air pollutants for Americans.
