FILE -This Feb. 1, 2012, file photo shows a sample of dried soy beans at the Willamette Biomass Processors plant in Rickreall, Ore., which crushes canola and other seeds to make biofuel and/or food grade canola oil. Biofuels are liquid fuels such as ethanol and biodiesel made from plants. "Advanced biofuels” made from plant waste or algae are more environmentally beneficial, but companies have not been able to produce them at reasonable costs despite big subsidies. (AP Photo/The Oregonian, Beth Nakamura, File)

Associated Press
FILE -This Feb. 1, 2012, file photo shows a sample of dried soy beans at the Willamette Biomass Processors plant in Rickreall, Ore., which crushes canola and other seeds to make biofuel and/or food grade canola oil. Biofuels are liquid fuels such as ethanol and biodiesel made from plants. "Advanced biofuels” made from plant waste or algae are more environmentally beneficial, but companies have not been able to produce them at reasonable costs despite big subsidies. (AP Photo/The Oregonian, Beth Nakamura, File)
FILE -This Feb. 1, 2012, file photo shows a sample of dried soy beans at the Willamette Biomass Processors plant in Rickreall, Ore., which crushes canola and other seeds to make biofuel and/or food grade canola oil. Biofuels are liquid fuels such as ethanol and biodiesel made from plants. "Advanced biofuels” made from plant waste or algae are more environmentally beneficial, but companies have not been able to produce them at reasonable costs despite big subsidies. (AP Photo/The Oregonian, Beth Nakamura, File)
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