Air pollution is still a problem for nearly half of Americans, report finds : NPR
A layer of smog lingers above downtown Los Angeles in 2024. Millions of Americans are still breathing in unhealthy air, despite long-term progress toward cleaning up many sources of pollution, according to the 2025 State of the Air report. ETIENNE LAURENT/AFP via Getty Images hide caption toggle caption ETIENNE LAURENT/AFP via Getty Images Air in…