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Canadian wildfires trigger air quality warnings in the U.S.

Season 2025 Episode 151 | 5m 08s

Wildfires burning in western Canada are triggering poor air quality warnings in the upper Midwest, advising people with heart or lung disease, older adults and pregnant people to limit outdoor activities. Meteorologists say that the impact of the fires this weekend could reach Oklahoma, Tennessee and Arkansas. John Yang reports.

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