Annual study ranks consumer sustainability around the world.

But GM says $350-a-month lease deal will put electric car within reach for many.

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

Sometimes you just have to laugh.

First UK cycle share scheme to launch next week.

Japanese "solar sail" propelled by the sun.

Economic recession blamed for decline.

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

US natural gas driller to disclose chemical use.

BP installs new cap that it hopes will capture the crude leaking into the Gulf.