Water hole in Portugal looks like a gateway to a fantasy world
April 13, 2016, 3:09 a.m. by Bryan Nelson
Portugal's Covão do Conchos is a national treasure that looks like the mythical monster Charybdis come to life.
Bacteria: Energy producers of the future?
August 23, 2011, 12:02 p.m. by Science Nation
Video: When we use water, much of it must undergo energy-intensive cleaning at a treatment plant before flowing back to the environment. Microbial fuel cells may make this process cleaner by harnessing the power of bacteria.
Heart-healthy bacon = Environmentally sustainable hydropower?
May 27, 2010, 7:07 p.m. by Nature Conservancy
Can there be such a thing as a dam that doesn't ruin nature? Yes — but you have to think BIG.
The lessons of 'Avatar' for sustainable hydropower
March 4, 2010, 2:07 p.m. by Nature Conservancy
Nature Conservancy scientist discovers a new ending to the script of 'Avatar' -- and wonders if the Battle for Hometree even needed to be fought.