KOJA, Nigeria””This was a small town on the docks where steamships stopped when a traveling young nut merchant named Ahmed Musa settled here in the 1940s. He didn’t even lock his doors at night.
Now Lokoja is the fastest-growing city on Earth. His roof looks out over shanties and suburban estates tangling along the Niger River stretch where, a century ago, a British writer gazed across the water and coined the name Nigeria. Lokoja’s metropolitan population of 473,000 is set to rise 78% in the next 10 years, the United Nations projects, quicker than every other sizable town in the world.
The biggest human increase in modern history is under way in Africa. On every other continent, growth rates are slowing toward a standstill for the first time in centuries, and the day is in sight when the world’s human population levels out.
But not here””not yet.