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Professor David Orr turns everything emerald

A staunch environmental advocate, the 31-year-old star recently launched the Honest Company, which makes nontoxic, ecofriendly baby gear

How student activists have been turning up the heat.

Rural mothers become solar engineers

Simi Oblabisi's Senior Project Gets New Life

Eden Full is saving the world without a degree

How we surveyed and scored the schools

Today's Eco-Activists Serve the Revolution by Tinkering in the Lab

Get clean while keeping nasty chemicals out of the environment and away from your skin

Norway's coast is 15,500 miles long, but without the bays and fjords, it would be only 1,500

You're deep in the woods when a tree catches fire. Now what?

Sierra's sixth annual ranking of America's greenest universities

Turn an empty container into a wall-mounted charging station

Are natural insect repellents better than DEET? That depends on how risky the bite is.

These magnificent trees would leave even the Lorax speechless