BBC News

How bad are Canadian and US wildfires, and what is the air quality risk?

Jul 16, 2026Center

Wildfires in Ontario have blanketed US and Canadian cities with dangerous smoke.

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Canadian wildfire smoke triggers air quality alerts across 17 states

NewsNation

Jul 16, 2026

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Canadian wildfire smoke triggers air quality alerts across 17 states

More than 100 wildfires are burning in Canada, and strong winds are pushing smoke south into the U.S.

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Canadian wildfire smoke triggers air quality alerts for millions: What to know

The Hill

Jul 17, 2026

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Canadian wildfire smoke triggers air quality alerts for millions: What to know

More than 100 million Americans are under air quality alerts as smoke from wildfires in Canada and northern Minnesota blankets parts of the U.S. and releases microscopic particles into the atmosphere that can raise serious health risks. Shifting winds have pushed thick haze into major metro areas across the Great Lakes, Northeast and Mid-Atlantic, reducing…

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Just Ask the Dinosaurs How Bad Air Quality Can Get

The Atlantic

Jul 17, 2026

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Just Ask the Dinosaurs How Bad Air Quality Can Get

If an orange sky seems apocalyptic, imagine planet-wide fires against a black sky.

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