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

Strawberry and thyme among drought-tolerant plants approved for city's residential parkways.

A new book from John Adams, founder of the Natural Resources Defense Council.

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

A Melbourne warehouse space made beautifully livable by Andrew Maynard Architects.

Renewable power is cheaper and safer, military leaders say.

Human sculptures invade Wall Street.

Norman Foster's visionary city rises outside Abu Dhabi.

Pedal-powered monorail technology receives $1.05 million investment from Google.

Region beginning to tap seismic volatility for electricity needs.