Clean energy

Harnessing the energy of ocean waves could be a potential energy source.
Karin Heineman, ISTV Executive Producer
A decades-old discovery may be crucial to increasing solar panel efficiency.
Ker Than, Contributor
Scientists have created a more efficient solar cell
Inside Science Television
Research demonstrates that wind power could generate all the world's electricity needs without large atmospheric effects.
Charles Q. Choi, Contributor
Alternative energy technologies you've never heard of.
Phil Schewe, Contributor