Major air pollutants have declined in recent decades, but USA TODAY’s analysis shows wildfire smoke is taking their place.

"The reality is that things have gotten much worse since then," she said. "Absence of evidence is not evidence of absence." ...

Millions woke up to hazy skies and poor air quality Wednesday morning as crews continued to fight the Palisades Fire in ...

The Wyoming Department of Environmental Quality “reports this legislation would end DEQ’s role with underground injection control (UIC) permitting for carbon capture and sequestration projects in ...

The LaSalle County Health Department is encouraging residents to test their homes for radon, a radioactive gas that occurs ...