Natural History Wanderings

NPR reports

Over the last few decades, air in the U.S. has undergone a remarkable transformation: pollution levels of health-damaging tiny particles have dropped by roughly 40% since 2000, primarily thanks to the country’s decades-long effort to improve air quality through the Clean Air Act, a landmark environmental law.

Smoke from wildfires fueled by human-driven climate change, however, has erased roughly 25% of those air quality gains, according to a new study published Wednesday in Nature.

Read more at  Wildfire smoke erodes air quality gains in the U.S. : NPR