As some people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air inside and especially cautious when cleaning up. Smoke, ash and all the ...

Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...

Air pollution in Los Angeles from cars and human activity is getting a boost from the city’s plants, some of which emit chemicals in response to rising temperatures and drought. “Since it’s hard to ...

Global warming already threatens to destabilise the Atlantic Meridional Overturning Circulation, and new research shows that regional clean-air policies could reduce its strength further ...