Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to the American Lung Association’s annual State of the Air report, released Wednesday.

The new report evaluated air quality in different parts of the country by measuring the presence of ozone and particle pollution in the atmosphere.

I see a pattern emerging in the data: EVs are clearly improving air quality and public health, yet they are also concentrating new kinds of particulate and chemical pollution in specific places, from ...

A new interactive map and groundbreaking database allows people in the world’s largest metropolitan areas to track their air pollution exposure, along with their region’s biggest sources of ...

Last summer, an abandoned factory in southwest Memphis got a new life courtesy of the world’s richest man. Elon Musk’s artificial intelligence company xAI moved in to transform this unprepossessing ...

The facility, in Colstrip, Mont., used a new E.P.A. system for requesting special waivers from President Trump. By Hiroko Tabuchi The nation’s most polluting coal-burning power plant has asked ...