United States Environmental Protection Agency

A friend's "you're stewing in your own dirt" comment ruined baths for Daniel for years. Here's what the research actually says.

2.9 million work-related deaths a year — and 2.58 million of them are disease, not injuries. What workers still don't know about the air they breathe.

Fifteen fuel dumps a year over US airspace — and nobody tracks where the fuel lands or what it does to the ocean.

Connecticut well water, Roman glass, and the isotope that changed the world — the strange story of element 92.