Global Wildfire Smoke Causes 339,000 Annual Deaths, WHO Reports
Global Wildfire Smoke Causes 339,000 Annual Deaths, WHO Reports
US · Published Mar 15, 2026
WHO reports 339,000 annual deaths globally due to wildfire smoke exposure.
Wildfire frequency has increased 13% since 2003, driven by climate change, impacting air quality.
Approximately 2 billion people are exposed to significant wildfire smoke annually, with PM2.5 causing widespread health issues.
WHO: Wildfire smoke causes 339000 annual deaths
A recent report by the World Health Organization (WHO) reveals that approximately 339,000 deaths occur annually worldwide due to exposure to wildfire smoke. These deaths are largely due to cardiovascular and respiratory complications. The report highlights that the frequency of wildfires has increased by about 13% globally since 2003, primarily driven by climate change, which has intensified fire seasons across multiple continents. WHO data indicates that around 2 billion people, or one-quarter of the global population, are exposed to significant wildfire smoke at least once a year.
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