And when you get large numbers of people living in land that is not that fertile, particularly when you cut down trees, and you leave the soil open to the wind for erosion, as desperate populations cut down more and more trees, so that they can try and grow food for themselves and their families, what's going to happen? Something's got to give.
생산성 낮은 땅에서 많은 사람들이 그들과 가족을 먹여 살리기 위한 작물을 키우기 위해 나무를 잘라냅니다 나무가 사라지면 사라질수록 땅이 점점 더 드러나면서 풍화에 노출됩니다. 결과는 어떻게 될까요? 좋지 않겠죠.