Only 13 of the world’s countries and territories had “healthy” air quality last year, according to a new report, as air pollution surged to alarming levels in 2022. The report by IQAir ...

but nearly half of Americans still live with unhealthy air pollution, a new report finds. The report comes as the Trump administration is considering rolling back some key air quality regulations.

Smoke from wildfires in Canada has drifted into the U.S., prompting air quality alerts for Americans as it continues to spread. But when officials and forecasters classify a city's air as ...

Air pollution is a mix of particles and gases that ... harm forests and crops, and damage cultural icons such as monuments and statues. Lake Urmia, in Iran, is a critical bird habitat and used ...