The World Resources Institute that turning plant matter into biofuel is an inefficient practice. The most efficient biofuel created is that from sawdust, tree clippings, and cornstalks. This fuel is best used by airplanes, because there are few alternatives for jet fuel, whereas for automobiles, there are many alternatives available. Scientists have expressed concern that the land used to grow corn for biofuel could be better used growing food for people. Also, it is clear that solar panels are over 50% more effective at capturing light and producing sustainable energy. The use of biofuels is much less efficient. Written by Lizzie Carrade.