Whether exploring dark, wet caves in Colorado or crossing paths with Montana's grizzlies, a dedicated band of scientists and volunteers is determined to solve the mystery of one of the most elusive birds on earth.
The Pittsburgh Botanic Garden and the Audubon Society of Western Pennsylvania are using a TogetherGreen grant to return an old mine site to nature.
Drilling in the Arctic. Shale-gas fracking from New York to Texas. The earth heating up. And Obama and Romney nowhere to be found.
On Cape Hatteras National Seashore, a revolutionary management plan is finally putting embattled sea turtles and birds on near-equal footing with ORV drivers. But powerful interests are working hard to undo it.