Canada’s Record Wildfires Made Four North American Cities Among the Five Most Polluted Cities in the World
Hundreds of wildfires have been burning in nearly all of Canada’s provinces for almost a month, the smoke from them drifting down into the midwestern and eastern United States. Major U.S. cities from Minneapolis to Charlotte have been affected by the eerie orange-tinged wildfire smoke, but last week four out of the five most polluted […]
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