Green Century

As leaders gather for an earth summit, we bring you a special report on ways to transform industry, cars, energy and architecture More »

Last Wild Places

How to preserve rare animal and plant habitats More »
Living Spaces

An organic building in Maryland More »
Generation E

Young activists-in-training More »
More Stories

The hot and wild weather is a sign of things to come. But fresh ideas and new technology can cool us down and make this a Green Century More »
The State of the Climate

A look at the state of food, water, population, biodiversty, climate, and energy in the world More »
Graphic: Trouble Spots in the Ozone

From depleted forests to dying reefs, distress signals dot the globe. Even in the U.S., with its relatively clean environment, excessive carbon emissions fuel global warming More »