In Seattle, a green business finds new life in downed trees.

Annual study ranks consumer sustainability around the world.

As the federal climate bill dies, a regional alliance steps up for emissions controls.

Elegance and sustainability make friends at a seaside home in Singapore.

Economic recession blamed for decline.

26-hour flight confirms viability of emissions-free air travel.

A U.S. military base goes solar.

The switch to efficient lighting will have a significant impact on emissions – and climate change.

But do the functional benefits meet the aesthetic aims?

New nanotechnology research means your pants may one day power your iPod.