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Get ready for smokier air: Record 2023 wildfire smoke marks long-term shift in North American air quality

Summary by Phys.org
A new analysis of air quality data from the past 70 years shows that Canada's record wildfire smoke in 2023 is part of a broader, continent-wide trend toward smokier skies across North America.

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Phys.org broke the news in United Kingdom on Tuesday, January 20, 2026.
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