Technological Improvements Raise the Energy Return For Energy Production
1. Improvements in Life Cycle Energy Efficiency and Greenhouse Gas Emissions of Corn-Ethanol from researchers at the University of Nebraska Ethanol-to-petroleum output/input ratios ranged from 10:1 to 13:1 but could be increased to 19:1 if farmers adopted high-yield progressive crop and soil management practices. An advanced closed-loop biorefinery with anaerobic digestion reduced GHG emissions by …