Grass May Surpass Corn as Ideal Biofuel

Soya and corn are the crops usually mentioned in discussions about biofuels, but a group of Minnesta researchers found that grasses, such as wild lupine and goldenrod, offer a carbon-negative alternative. In a special report in New Scientist, Humble grasses may be the best source of biofuel, the research team focused on mixed-species agriculture plots left fallow. The more grass species present, the higher the potential energy yield.