translation.en: If five percent of that population became, quote, middle class, and wanted to go the way we've gone in the last hundred years at the same time that 50 percent of their population are moving into cities of the size and density of Manhattan, every six weeks -- it isn't sustainable environmentally; it isn't sustainable economically -- there just ain't enough oil -- and it's not sustainable politically.
translation.zh: 如果当中百分之五的人成为了所谓的中产人士 并希望走我们在过去百年我们走过的路 同时当中一半人口每隔六周 迁入面积和密度跟曼哈顿一样城市 环境受不了 经济受不了，因为没有足够的石油 政治上也不可承受