The number of people living in the world's urban slums is rising — but the number of city dwellers who don't live in slums is rising even faster.
Check out this graphic from the Economist. It shows how, in many developing countries, the percentage of urban dwellers who live in slums fell significantly between 1990 and 2007. Worldwide, the percentage of the percentage of the world's urban population fell from 40% to 33% during that time.
In the past decade, 200 million people have moved out of slum conditions, the the UN said in a report released last week. During the same time, though, the total number of people living in slums rose to more than 800 million.