美国向玉米农民发放乙醇补贴，但这么做并没有能够达到政客拍胸脯保证的环境目标，却平白消耗了大量谷物，助长了食品价格。
Ethanol subsidies, such as those paid to American corn farmers, do not accomplish policymakers’ avowed environmental goals, but do divert grain and thus help drive up world food prices.