Air pollution levels keep getting worse for more people in the US, according to a new report, and experts say the Trump ...

The report says 56.1 million Americans are living in places that get failing grades for unhealthy levels of ground-level ...

Kristina Barker for The New York Times Some research suggests that wildfire smoke may be more toxic to the lungs than ordinary urban air pollution is, because wildfire smoke contains a distinct ...

St. Louis, Missouri, was ranked 21st worst city across the country for its ozone levels this year, while Kansas City was ...

A new study led by researchers at Yale University suggests that early-life exposure to two widespread environmental ...

Healthy, robust tree canopies can reduce the impacts of extreme heat and improve air quality. A new policy resource from the ...

“Fine particulate matter is found in urban air pollution due to automobile traffic and industrial activity, and artificial ...

“Fine particulate matter is found in urban air pollution due to automobile traffic and industrial activity, and artificial light at night is common, particularly in densely populated urban areas ...