Makoko #2, Lagos, Nigeria, 2016
After growing at a gradual pace for most of human history, the earth’s population has more than doubled in the past 50 years. According to a 2017 United Nations report, the current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2050 and 11.2 billion in 2100. The world’s population is increasingly urban, with 54 per cent now living in cities, a proportion expected to increase to 66 per cent by 2050. Accommodating all the new city-dwellers is an issue. In Lagos, the world’s fastest-growing city, residents of the Makoko neighbourhood have built makeshift houses on stilts and live without plumbing, running water or electricity.