Los Angeles residents are breathing bits of "cars, metal pipes, plastics." The health impacts could reverberate long after ...

The American Conservation Coalition has grassroots support and the ear of Trump's cabinet picks. The next four years will ...

The source of more than half of all wildfires in the Western U.S. remains unknown — a knowledge gap that hampers prevention efforts.

A proposal to lower speed limits on waterways — boat strikes kill a large number of the whales — was dropped in face of next administration.