Along the way, we despoiled most of the land we worked, often turning verdant, natural ecozones into semi-arid deserts.
一路上，我们破坏了大多数我们曾经耕作过的的土地，经常把翠绿的自然生态区变成了半干旱的沙漠。
2
Rain was likely to become more intense and variable in many places, and farmers in the arid and semi-arid tropics were likely to become more vulnerable.
雨水在许多地方可能会变得更加密集与多变，处在干旱和半干旱热带区的农民可能会变得更加脆弱。
3
Climate change, it says, will make food even scarcer in semi-arid countries such as Sudan.