And with desertification, sandstorms, the Gobi Desert, the Ogaden, we are finding increasing difficulty of a hectare to produce as many calories as it did even 15 years ago.
还有就是沙漠化、沙尘暴、戈壁滩、Ogaden 我们现在很难找到一小块可以耕作，并且 可以产生出跟15年前一样多粮食的土地