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In northern Minnesota, a greenhorn gets mushy for a teammate

Professors describe essential environmental books--and why they love them.

Some colleges embrace the outdoors as a classroom

Schools around the globe have taken to greening campus housing

Organic food? Check. Solar power, biodiesel buses, and composting? Check, check, check.

We're still killing the creatures with the biggest brains on the planet—to make dog food

A High Sierra search for climbing registers, the voices of climbers past

Colleen Smith: Huntington Beach, California, pro beach volleyball player

Can the artistic free-for-all go green?

Daniel Duane floats and fishes Alaska's healthy waters, glimpsing paradise regained

We can choose technologies that will keep us warm in the winter, cool in the summer, and get us where we want to go while preserving our natural landscapes

No, and don't hold your breath: The family vacation is fading fast

Jim Malusa hit bottom on six continents, saving the drop into Death Valley for last

Southern California set the nation on the path to bicycling bliss, then detoured. But smogville could still become a velotopia.

Mad-deer disease, more formally known as chronic wasting disease (CWD), is found mostly in northeast and central Colorado and southeastern Wyoming

Has Wal-Mart warmed to eco-responsibility?

The new world of corporate environmental officers

Using a pressure cooker cuts stovetop energy use by 50 to 75 percent

On the Arctic's ephemeral terrain, polar bears teach humans to survive