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  1. Fires in Canada Threaten U.S. Air: 22 Million Americans at Risk

    Fires in Canada Threaten U.S. Air: 22 Million Americans at Risk

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  2. Wildfire smoke is triggering air quality alerts in the Midwest as dozens of fires burn in Canada. Me

    Wildfire smoke is triggering air quality alerts in the Midwest as dozens of fires burn in Canada. Me

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