Ralf Schmerberg's refrigerator igloo makes a statement on energy use and climate change.

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

Renewable power is cheaper and safer, military leaders say.

Norman Foster's visionary city rises outside Abu Dhabi.

Region beginning to tap seismic volatility for electricity needs.

Trash-to-energy projects gain support on the West Coast.

Showroom stickers would rank cars based on fuel economy and emissions.

Nation's first energy storage bill passed by the California Legislature.

Mojave Desert facility will be California's first solar thermal project in two decades.