Learning to conquer fear of the big and the steep.
How to layer up for winter adventure.
Injured war vets seek healing, find it in each other.
We can build big solar plants without killing desert critters.
How the coal industry poisoned your tuna sandwich.
What our readers have to say
º Polar explorer Eric Larsen
º Gifts that keep on living
Bering Sea science camp
Furnace or hybrid?
Corkscrew Peak, Death Valley National Park
Rudolph the red-nosed bicycle
º Christmas tree curse
º Maoist manatees
º The age of peak soil
º Up to Speed
Cool(er) data centers
Know what's on your fork
The Tea Party's road test
º Taking aim at a Chicago coal plant
º Canadian MP with Sierra Club roots
On the cover: Atop Mt. Daniel, Alpine Lakes Wilderness, Washington. Photo by Jason Hummel