On the Cover
Life cycle analyses generally show that the main sources of greenhouse gas (GHG) savings for bioenergy derived from plants are fossil fuel displacement and soil and root carbon storage. Although they are of a similar magnitude, they are not equally important (DOI: 10.18331/BRJ2020.7.2.2). In the June 2020 Issue of Biofuel Research Journal, Yang and Tilman show that soil and root carbon storage is more important. It directly removes CO2 from the atmosphere, whereas the other benefit stems from avoidance of future fossil fuel GHG emissions, a pathway that is subject to a wide range of assumptions and uncertainties, especially the rebound effect of fuel market. The authors find that soil and root carbon storage rates tend to be higher in high plant diversity mixtures. Photography & Cover art by BiofuelResJ. ©2020.