Toxic wildfire smoke chokes major American cities

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Matt Rivers reports on the latest wildfire smoke affecting North American cities and urgent warnings from health experts about air quality.

Channel: ABC News

Tags: ABC News, ABC News Videos, Air Pollution, Air Quality Alerts, American Cities, Breaking News, Climate Change, Environmental Crisis, Hazardous Air Quality, International News, Latest National News, Latest News and Videos, Latest World News, Public Health Warning, Toxic Smoke, US News, Wildfire Impact, Wildfire Smoke, World News

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