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 ...

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" ...

Given morning allergy attacks and news of everything from long wildfire seasons to Saharan dust clouds, many people are concerned about the air quality in their homes. While an indoor air quality ...

Air pollution is the leading environmental health threat to people worldwide. According to the World Health Organization, outdoor air pollution causes over 4 million premature deaths each year — ...

Cities across the US, particularly those in California where wildfires are common, are often exposed to lower air quality due to a mix of urban pollution and weather effects. But even some rural areas ...