The world needs housing

摘要

International development charity Habitat for Humanity estimates that nearly one out of every four people in the world live in substandard housing. Homelessness affects 100m people, it said. The United Nations says 1bn people - almost a third of the global urban population live in slums, and that could double by 2045, it said. Meanwhile, over a million people are born to, or choose, city living in the developing world each week, the organisation said.