Wildfire smoke has reversed US progress toward ozone air quality, study finds
A new study published in Science reveals that wildfire smoke has reversed progress in reducing ground-level ozone pollution in the US since 2015. The research links this plateau in air quality improvement to thousands of premature deaths annually.
Why it matters
This highlights a critical intersection between climate change, wildfire frequency, and public health, suggesting that current emission regulations may be insufficient.
A firefighter works as the Sandy fire approaches on 19 May 2026, in Simi valley, California. Photograph: Caroline Brehman/AP View image in fullscreen A firefighter works as the Sandy fire approaches on 19 May 2026, in Simi valley, California. Photograph: Caroline Brehman/AP US wildfires Wildfire smoke has reversed US progress toward ozone air quality, study finds Since 2015, destructive fires have undone years of effort to reduce ozone levels, underscoring a growing public health crisis
The focus on environmental impact and public health crises aligns with typical framing in environmental journalism.
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