Purple haze! Crazy Japanese flower park features tunnel of hanging wisteria

More and more countries are tapping powerful ocean winds for electricity

Japanese artist transforms fast food bags into miniature forests

An illusory mountainscape installation 'invisibly cast' in draped plastic

A solar-powered light installation illuminates the Sumida River

No natural resources? No problem. Education ensures economic success

Magical time-lapse photography by Tsuneaki Hiramatsu

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

The most explosive volcano photos of 2011, courtesy of The Atlantic