The five year study also found greenhouse gas emissions from cellulosic ethanol made from switchgrass were 94 percent lower than estimated greenhouse gas emissions from gasoline production.

• 这项耗时5年的研究同时也发现，从柳枝稷所淬炼出的纤维素乙醇与石化制品相较，前者温室气体排放量较后者估计值低了94%25。