TIME Special Report: The World at 7 Billion

This month, the 7 billionth person will be born on a planet already strapped for resources. To mark this extraordinary milestone, TIME explores the most pressing population issues of the day, from the quest for sustainable energy sources to a look at what our biggest cities could look like in the decades to come

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10. Lahore, Pakistan

megacities

K.M.Chaudary / AP

Predicted increase in population by 2025: 3.17 million

Pakistan's "second city" hasn't yet cracked the list of the world's megacities, but a spiking population driven by its culture and bustling electronics industry will put it on the list by 2025. And as its population growth has not yet exceeded its economic growth, Lahore seems to be in a unique position to thrive as it sees an influx of people. Its recent urbanization means that housing is relatively modern and well constructed. But land prices are skyrocketing as the city grows, and housing costs could be prohibitive. Roadways are in good condition, thanks to a public-transportation system that runs 24 hours a day. But infrastructure will have to be maintained in order to keep Lahore, the cultural center of Pakistan, thriving as a rival to Karachi.