African country reveals plans for world's biggest solar plant.

Climate change doubt is an essential element of the Tea Party program.

California company launches e-waste recycling network.

Popular farming internships teach people how to plant and plow.

Mobile farm trucks bring local, sustainable produce to the people.

First UK cycle share scheme to launch next week.

Economic recession blamed for decline.

L.A. artist creates sublime monuments from discarded materials.

Former Formula One engineer unveils superlight eco car.