 Eight of the nation's top agricultural and greenhouse gas lifecycle scientists filed a brief challenging the faulty assumptions used in most attacks on the renewable fuel standard. Growth Energy CEO Emily Skor says this news from America's top lifecycle experts sent us a clear signal that it's time environmental advocates and biofuel skeptics listen to the experts and let go of outdated and debunked research. Even the U.S. Department of Energy now acknowledges U.S. ethanol slashes greenhouse gas emissions 44%.