Well, I can think of three problems. One is water drought. The scarcity of water.

我可以想到的有三个问题。第一个问题是干旱。水资源短缺。

This is indispensable in a region like the Near East, where the scarcity of water prohibits further agricultural expansion.

对于近东这样的区域来讲，这是极为必要的，在这里，水的短缺限制了农业的扩展。

The scarcity of water, the lifeblood of all organisms, is perhaps the most defining challenge.

水是所有生物体的命脉，而水的稀缺也许是最具决定性的挑战。

(somber music) Severe drought and heat in Kazakhstan's Mangystau Peninsula have created a scarcity of water and food for horses, cattle, and sheep, killing multitudes of animals.

（忧郁的音乐）哈萨克斯坦曼吉斯陶半岛的严重干旱和高温导致马、牛和羊的水和食物短缺，导致大量动物死亡。