Researchers from University of California - Santa Barbara (UCSB) and the Norwegian University of Science and Technology have determined solar panels are much more efficient than biomass as energy sources to fuel vehicles.
The USA’s love affair with corn ethanol is only deepening - production grew from 4.7 billion gallons in 2007 to 7.5 billion gallons last year. But instead of reducing greenhouse gas emissions (which was part of the goal in their use), it may be increasing them.
Turning food into fuel has also affected corn prices globally and tied up vast amounts of farm land.
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