Results for keyword: alternative
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Cow power
In Idaho’s Magic Valley, cow capital of the fourth-largest milk-producing state in the U.S., entrepreneurs are hoping to cash in on all that manure by using anaerobic digesters to convert it into energy
by Michelle Blank, May 14, 2007 -
Powered by pond scum
Colorado inventor Jim Sears is among those researchers fascinated by the possibility that algae farms in the Southwest could provide a source of biodiesel.
by Jennie Lay, Feb 19, 2007






