Another rationale for buying organic is that it is supposedly better for the natural environment. But the low yields of organic agriculture in real-world settings – typically 20-50% below yields from conventional agriculture – impose various stresses on farmland and increase water consumption substantially.
选购有机食品的另一项理由是一般认为它有利于自然环境。但现实世界中有机农业产量低下（一般比传统农业减产20-50%）——为农田带来重重压力，并导致用水量大幅提高。英国最新一项汇总分析显示有机系统单位产量的氨排放、氮淋失及氧化氮排放均高于传统农业，这还不算土地过度使用和可能的富营养化——化肥及废物所造成的不利生态影响——以及土壤酸化过程。