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.
Economist article states:
"THE proportion of the world’s urban population living in slums has fallen from nearly 40% a decade ago to less than a third today. China and India have together lifted 125m people out of slum conditions in recent years. North Africa’s slum population has shrunk by a fifth. But the absolute number of slum dwellers around the world, estimated to be some 830m, is still rising. And in a few countries the share of the urban population in slums has also grown. In Zimbabwe, economic collapse and the forced relocation of urban dwellers have lifted the urban slum population. In Iraq, as a result of conflict, the number of people living in slums tripled in ten years."
