Wildfires Are Reversing Years of US Air Quality Gains, Study Finds
Tailpipe emissions standards implemented early this century helped reduce smog levels. Longer, more intense fire seasons have erased much of that progress.
By Avril Silva
Ozone
Potent Greenhouse Gases and Ozone Depleting Chemicals Called CFCs Are Back on the Rise Following an International Ban, a New Study Finds
By Phil McKenna
The ‘State of the Air’ in America Is Unhealthy and Getting Worse, Especially for People of Color
By Kristoffer Tigue
Recent Megafire Smoke Columns Have Reached the Stratosphere, Threatening Earth’s Ozone Shield
By Bob Berwyn
New Climate Research From a Year-Long Arctic Expedition Raises an Ozone Alarm in the High North
By Bob Berwyn
Is Texas's Ozone Problem Linked to Fracking?
By Lisa Song
