Richard Hoops reports for Earthwatch Radio . The conservation group American Rivers recently cited the U.S.'s 10 most endangered waterways and reports that most of them are being damaged by energy production.
Scientists demonstrate how to turn a radio on and off using brain waves.
Also, a story on urban rain. But a new method of cleaning up wastewater begins and ends at the same place. And instead of using chemicals and machinery, it uses plants and animals. The Great Lakes Radio Consortium's Lester Graham reports. Basic Gives you access to RealAudio, RealVideo, live events and more.