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WMO Warns Wildfires Threaten Air-Quality Gains, Mortality

9/7/2026

17 4 Full Breakdown

Summary

Story summary

WMO warns wildfires and heatwaves threaten global air-quality improvements.
Fire-related PM2.5 exposure rose while Europe and North America cut industrial PM2.5.
Conventional models may underestimate wildfire mortality by up to 93 percent.
Fire-smoke events have tripled since the 1990s, adding about 100,000 deaths yearly.
Rising ozone during heatwaves could cause tens of thousands of premature deaths.

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Story summary

WMO warns wildfires and heatwaves threaten global air-quality improvements.
Fire-related PM2.5 exposure rose while Europe and North America cut industrial PM2.5.
Conventional models may underestimate wildfire mortality by up to 93 percent.
Fire-smoke events have tripled since the 1990s, adding about 100,000 deaths yearly.
Rising ozone during heatwaves could cause tens of thousands of premature deaths.