Air pollution remains one of the most pervasive health threats of our time—and it’s changing. Extreme heat, bigger wildfire seasons and stubborn urban emissions are reshaping exposure patterns…
What’s changed in the last year
According to the American Lung Association’s “State of the Air” 2025, 46% of Americans—156.1 million people—live in places with failing grades for unhealthy levels of ozone or particle pollution.
Why it matters: health impacts you can feel
Fine particles (PM2.5) are tiny enough to penetrate deep into the lungs and even enter the bloodstream…
Smoke seasons are becoming mortality events
Wildfire smoke is now a national risk—not just a Western one.
Bottom line
The trend lines are clear: climate change is amplifying air-quality risks even as cleaner technologies arrive. Focus on cutting combustion, preparing for smoke, and enforcing health-based standards. These steps save lives now and blunt near-term warming.
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