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Governments and companies are pouring billions of research dollars into advanced fuels made from wood and grass, meant to cut carbon emissions compared with gasoline, and not compete with food as corn-based biofuels do now. But such advanced, “cellulosic” biofuels will actually lead to higher carbon emissions than gasoline per unit of energy, averaged over the 2000-2030 time period, the study found. That is because the land required to plant fast-growing poplar trees and tropical grasses would displace food crops, and so drive deforestation to create more farmland, a powerful source of carbon emissions. Biofuel crops also require nitrogen fertilizers, a source of two greenhouse gases: carbon dioxide (CO2) and the more powerful nitrous oxide. Read More at: http://www.wbcsd.org/ http://www.zerofootprintfoundation.org/63858/