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2015-12-22. How Biofuels Can Cool Our Climate and Strengthen Our Ecosystems.

posted Dec 28, 2015, 9:45 AM by Alan Gould   [ updated Dec 28, 2015, 9:48 AM ]
By Evan H. DeLucia and Carl R. Woes, Earth & Space News (AGU). For GSS Energy Flow chapter 6 and Energy Use chapter 9. Excerpt: As the world seeks strategies to reduce emissions of carbon dioxide (CO2) into the atmosphere, bioenergy is one promising substitute for fossil fuels [Somerville et al., 2010]. Currently, the United States uses the starch component from roughly 40% of its corn harvest to produce ethanol for the transportation sector (see the National Agricultural Statistics Service website). ...Replacing annual crops with perennial grasses such as miscanthus and switchgrass would pull carbon out of the atmosphere and return it to the ground (Figure 2). These crops allocate a large fraction of their biomass below ground in their root systems, and they can rapidly build up carbon stores in soil, reversing losses associated with frequent tillage, particularly on degraded or heavily tilled soils....  https://eos.org/features/how-biofuels-can-cool-our-climate-and-strengthen-our-ecosystems