Pollution

An Obama-era rule to reduce ground-level ozone has been delayed by one year, EPA Administrator Scott Pruitt announced Tuesday. The National Ambient Air Quality Standards were supposed to identify cities that currently have ozone levels above 70 parts per billion. The EPA itself calls ground-level ozone “bad ozone” and says it has been linked to numerous environmental and health effects, including “chest pain, coughing, throat irritation, and airway inflammation,” which can lead the asthma or other problems. The announcement about this delay, however, claims the EPA does not “fully understand the role of background ozone levels.” 

The Revelator speaks with Bobby Magill, president of the Society of Environmental Journalists.

Facing new threats — including toxins from illegal marijuana grows — the fate of this little-known mammal hangs in the balance.

A new book dives into the toxic history of the companies that poisoned dozens of young women.

I went to Peru to screen a documentary about mining and ended up getting detained.

Government emissions tests have drastically underestimated the pollution created by diesel trucks, cars and other vehicles, according to a study

When a 60,000-pound shipping container falls into the ocean, its plastic contents can end up on the world’s beaches — and in its fish.