Mongabay: Boeing says biofuel-powered planes are only three-to-five years away from being a reality, reports The Guardian. “The certification will happen much sooner than anybody thought,” Darrin Morgan, Boeing’s director of environmental business analysis, told the newspaper. “We are thinking that within three to five years we are going to see approval for commercial use of biofuels – and possibly sooner.” Morgan said that while future jets will be capable of running on biofuels, supply …