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A deal that one activist called Southern California's Louisiana Purchase will make life easier for game animals and other species

When climbers die, is the camera partly to blame?

"We are hardwired to be explorers"

It's easier to get into Heaps Canyon than to get out

Experts serve up their favorite herbal brews, all steeped in sustainability

Why photographer Clark Little risks his neck to share a vision of the natural world that few ever see for themselves

A snowkiting newbie rises from the wreckage

Working hard outdoors is fun. Even in the heart of a midwest winter.

The mere thought of heaps of disposable cups, replete with congealing backwash and reconnoitering insects, can spur even the most environmentally indifferent into action.

You Got Your Environmental Studies Degree. Now What?

Filth is Flunking

Game-day pollution: going, going, gone

Six students cheer their college's unique conservation efforts

A comprehensive guide to the most eco-enlightened U.S. colleges

The complete list of Sierra's 2009 Cool Schools participants

Sierra's third annual list of America's greenest colleges and universities

The new issue in environmental justice: paychecks

Teens from L.A.'s notorious Crenshaw and Dorsey High Schools come together in Yosemite

How the Sierra Club's 1960s lawsuit stopped Disney from turning Mineral King into a ski resort

A couple plopped their baby in a basket and floated into the wild.