生物燃料倍受争议,原因就是它的生产需要消耗大量粮食。如何不用粮食生产生物燃料呢?国外已有一些公司宣布,他们可以直接将生活垃圾转变为生物燃料。目前一些国家生物燃料的生产以粮食为原料,这成为促使全球粮价上涨的因素之一。经济合作与发展组织估计,到2017年,欧盟、美国和加拿大耕地的14%将用于种 Biofuels are the cause of controversy because of the large amount of food they consume. How to produce biofuels without food? Some foreign companies have announced that they can directly convert domestic waste into biofuels. At present, the production of biofuels in some countries uses grain as raw material, which has become one of the factors that have contributed to the global rise in food prices. The Organization for Economic Co-operation and Development estimates that by 2017, 14% of arable land in EU, USA and Canada will be used for species