Pakistan's population is growing rapidly. The 2017 census recorded nearly 210 million residents, an increase of almost 60% since 1998 which has seen the country replace Brazil as the world's fifth most populous nation. The number of cars on Pakistan's roads has grown even more rapidly–by 650% between 1991 and 2012. Vehicle sales have skyrocketed, especially since automobile leasing became popular in the early 2000s, notes Ahmad Rafay Alam, an environmental lawyer who lives in Lahore, Pakistan's second largest city.

中文翻译：

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污染增加和呼吸健康问题困扰巴基斯坦人口激增

巴基斯坦的人口正在迅速增长。2017年的人口普查记录了近2.1亿居民，自1998年以来增长了近60％，该国已取代巴西成为世界第五大人口大国。居住在拉合尔的环境律师艾哈迈德·拉斐·阿拉姆（Ahmad Rafay Alam）指出，巴基斯坦道路上的汽车数量增长速度甚至更快，1991年至2012年间增长了650％。汽车销量飞涨，尤其是自从2000年代初汽车租赁开始流行以来。巴基斯坦第二大城市。