Slums are on the rise around the world. Estimates suggest that by 2050 sixty-six per cent of the world's population will live in cities—and a large proportion will live in slums. Today, in Nairobi, slums occupy two per cent of the city's land but are home to over half its population.

Diverse individual voices are hidden within the statistics. Seeking to put a human face to the numbers, SDI collected stories from people living and working in informal settlements around the world, published in 2011 as Voices from the Slums. Below are a few of these stories, from two informal settlements in Nairobi.

Photo/text copyright: Leopold Nicolai Podlashuc and SDI