此外，人们应该更好的利用国际间合作去解决一些严峻的世界性问题，如全球变暖。
Also, people ought to make the best use of international cooperation to solve the serious worldwide problems such as global warming.
除此之外，人类还面临如全球变暖、水资源短缺等一系列问题，这些都将导致食物短缺。
In addition, the human race is facing a multitude of issues such as global warming, and consequent water shortages, which could result in huge food shortages.
而更严重的问题，可以我们杀死所有的孩子们的是环境问题，如全球变暖，土地和水资源的侵蚀。
The even graver problems that could "do in" all our children are environmental ones, such as global warming and land and water degradation.
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