Moreover, even under the most optimistic scenario, the US and the world will still be relying mainly on conventional fossil fuels until the hydrocarbon era comes to an end (which few of us will live to see). Last but not least, diverting vast tracts of agricultural land into fuel production has contributed to a doubling of prices for wheat and other grains.
而且，在碳氢化合物时代结束以前(我们没人会活到那一天)，即使在最为乐观的情形下，美国和全世界还是主要依赖常规矿物燃料。最后还有重要一点，把大量农田分离用于燃料生产已经造成小麦和其他作物价格翻倍。好几个国家已经爆发了食品骚乱，现在是不是时候承认这一整个想法是一个用心良苦巨大错误呢？