This looks like worthwhile reading for folks interested in the topic. Open access! No extra effort! The water-land-food nexus of first-generation biofuels Maria Cristina Rulli, et al. Scientific Reports | 6:22521 | DOI: 10.1038/srep22521
fyi here is the link The water-land-food nexus of first-generation biofuels : Scientific Reports The main idea is here