WMO Links Wildfires and Heatwaves to Worse Air — SkimNews
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- World Meteorological Organization found that climate-amplified heatwaves and wildfires are hindering air-quality progress in regions where vehicle and industrial pollution had fallen.
- Wildfires have tripled since the 1990s, and one study cited in the WMO report linked that increase to almost 100,000 deaths annually between 2010 and 2018.
- Wildfire smoke was consistently linked by systematic reviews and experimental studies to more asthma attacks, COPD hospitalizations, respiratory medication use, and effects on mental health and birth outcomes.
- Ground-level ozone worsens during intense, prolonged heatwaves; in heavily polluted regions, roughly one in five deaths from COPD is attributed to long-term exposure.
- Atmospheric aerosols alter cloud properties, lifetime and brightness, while PM2.5 from industry, farming, heating, transport, wildfires and dust storms can penetrate deep into the lungs and bloodstream.
- Black carbon deposited on snow and ice darkens those surfaces, reduces reflected sunlight and accelerates melting, reinforcing planetary warming.
Why it matters: People with asthma or COPD face the clearest immediate burden: the report links smoke exposure to attacks and hospitalizations, while ozone is tied to about one in five COPD deaths in heavily polluted regions. The same pollution also feeds warming, making clean-air action inseparable from climate action.
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