Well, interestingly, and based on my work and others in Africa, for example, we've shown that even the most vulnerable small-scale rainfall farming systems, with innovations and supplementary irrigation to bridge dry spells and droughts, sustainable sanitation systems to close the loop on nutrients from toilets back to farmers' fields, and innovations in tillage systems, we can triple, quadruple, yield levels on current land.
有趣的是，根据我的研究 和其他人在非洲的研究，比如， 我们讲了即便是最最宝贵的小型降雨耕作系统， 有了创新和补充灌溉 也能解决干旱和旱灾， 可持续性卫生系统将养分从厕所 循环到农田， 创新的耕作系统， 我们可以在现有的农田上 得到三倍，四倍的产量。