Dangerous wildfire smoke blankets 19 states, triggers air quality alerts for millions

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NBC Nightly News Full Episode - July 17

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100 million Americans facing dangerous wildfire smoke

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ABC World News Tonight with David Muir Full Broadcast - July 16, 2026

Hundreds of Wildfires Burn Across Canada Sending Smoke Into the US

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Smoke from Canadian wildfires blankets major U.S. cities for third straight day

Canadian wildfire smoke affecting air quality conditions in U.S.

Air Quality Concerns Grow Over Canadian Wildfire Smoke in US

Midwest sees world's worst air quality as wildfire smoke spreads