Take a look at the below images and make some observations: Two images of the Eiffel Tower in Paris, France from similar vantage points. Credit: Left image, Shutterstock; right image, Shutterstock ...

The Fourth National Climate Assessment for the United States claims that particulate matter (PM2.5) causes heart attacks, deaths, and other harms and that these may be worsened due to climate change.

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 "unhealthy" ...

A new report has provided detailed pathways to improve air quality in India, including Delhi, by examining how other ...

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 ...