From Nazi subs to megawatts: 125 years of wind power

updated 9:30 PM EST, Sun January 20, 2013

Patricia Wu looks at efforts to combat food waste in Hong Kong.

updated 9:33 PM EST, Sun January 13, 2013

CNN's Pauline Chiou goes to Hong Kong's annual toy fair to find out about the growing market for eco-friendly toys.

updated 11:15 PM EST, Sun December 30, 2012

CNN's Liz Neisloss reports on a roof that is only a sample of the greening of Singapore's skyline.

updated 9:16 PM EST, Tue December 18, 2012

A dam project in Cambodia could destroy livelihoods and ecosystems, says Conservation International

updated 10:22 PM EST, Mon December 17, 2012

Shipping lines, port authorities and technology companies are taking the initiative to go green and reduce costs.

updated 9:06 PM EST, Sun December 9, 2012

Less than 20 miles from Singapore's skyscrapers is a completely different set of high-rise towers.

updated 6:04 AM EST, Thu December 6, 2012

The Pitcairn Islands might only have 55 human inhabitants, but the waters surrounding them are teeming with marine life.

updated 10:22 PM EST, Sun December 2, 2012

Biofuel made from sugar cane waste in Brazil could revolutionize the global energy industry.

updated 9:58 PM EST, Sun November 25, 2012

Many believe that fuel-cell cars will overtake electric vehicles in the near future.

updated 3:20 AM EST, Mon November 19, 2012

Modern and sustainable buildings in the UAE are taking cues from an ancient Arabic design tradition.

updated 11:09 PM EST, Sun November 11, 2012

One man's artistic vision is distracting divers from Cancun's threatened underwater ecosystem.

updated 12:46 PM EST, Mon November 12, 2012

Lake Victoria, Africa's largest lake, has been plagued by water hyacinth plants for over two decades.

Just how much are natural wonders like the Great Barrier Reef worth in monetary terms?