translation.en: And the most biofuel we might need, just three million barrels a day, can be made two-thirds from waste without displacing any cropland and without harming soil or climate.
translation.zh: 而我们所需的 每天不会超过三百万桶的生物燃料 三分之二来自废物回收处理 它们不需要占用农田 对土壤和气候也无害