Doctors, environmental groups and residents are trying to figure out if there is a causal connection between pollutants from the steel industry and rates of cancer in Gary, Indiana. Pollutants you can ...

I grew up in rural Colorado, deep in the mountains, and I can still remember the first time I visited Denver in the early 2000s. The city sits on the plain, skyscrapers rising and buildings extending ...

A new report revealed that most of the world has polluted air, with only 17% of cities globally meeting the World Health Organization’s air quality guidelines. IQAir, a Switzerland-based air quality ...

While pollution outdoors poses a significant health risk for people, worsening indoor air quality has also gradually become a pressing issue that needs to be addressed. Annually, almost 4 million ...

Extreme heat is making air pollution worse, scientists say. And President Trump’s regulatory rollbacks could drive air pollution even higher. By Claire Brown and Christina Kelso The heat dome that is ...

In the stratosphere, ozone acts as a protective layer. But in the troposphere, at ground level, this colorless gas is incredibly harmful to human health and the environment in ways scientists are ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Jenni Shearston, University of Colorado Boulder (THE CONVERSATION) I grew up in rural ...