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

Annual study ranks consumer sustainability around the world.

Japanese "solar sail" propelled by the sun.

Economic recession blamed for decline.

Report finds dramatic reductions in prohibited logging activities around the globe.

The story of a species on the brink of extinction.

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

Atlantic coast under threat as tar balls wash up in Florida Keys.

Visionary architectural concept from Holland, so advanced we don't understand it.

A proposal to ban the export of the critically endangered bluefin tuna has been rejected at a UN wildlife meeting.