africa/global: one in three in slums in thirty years

One in every three people in the world will live in slums within 30 years unless governments control unprecedented urban growth, according to a UN report. Africa now has 20% of the world's slum dwellers and Latin America 14%, but the worst urban conditions are in Asia, where more than 550 million people live in what the UN calls unacceptable conditions. The world's 30 richest countries are home to just 2% of slum dwellers; in contrast, 80% of the urban population of the world's 30 least developed countries live in slums.