Innovation group challenges people to re-imagine the city of the future

Home-building competition challenges architects to keep it local

Magical time-lapse photography by Tsuneaki Hiramatsu

In a case of NIMBYism doing good, a New York court rules in favor of a regional ban on gas drilling

Project looks to exploit Asian country's enormous renewable energy potential

Beautiful images of the ocean in motion

With limited progress on CO2 emissions, a group of nations turn to other pollutants