生物燃料的投资、生产和消费正在升温,欧美政府的补贴和激励机制推动了其发展;另外,由于作为应对全球变温的措施也推动了其发展。从常规的观点来看,生物燃料的碳足迹低于石油基燃料,然而,将食品作物转化来生产生物燃料已助推了粮食价格的上涨,此外,考虑到土地使用的种植则碳足迹并非完全如此,生物燃料面对碳 The investment, production and consumption of biofuels are heating up. The subsidies and incentives of the European and American governments have boosted their development. In addition, their development has also been propelled by the measures taken to cope with the global warming. From a common standpoint, biofuels have lower carbon footprints than petroleum-based fuels, however, converting food crops to produce biofuels has helped push up food prices and, in addition, carbon footprints are not complete given that land-use cultivation So, biofuels face carbon