There are numerous examples to illustrate this: the global spread of diseases, poverty- induced violence and terrorism, shared effects of air or water pollution, resource depletion.
有无数的实例可以证明这一点：疾病在全球范围的传播、贫穷引起的暴力和恐怖主义、空气和水污染造成的共同影响以及资源的枯竭。