1. In the cities of the South, at least one inhabitant in four, according to the statistics of the World Bank, scarcely likely to adopt an unduly pessimistic view, already lives in poverty and by the year 2000 this proportion will have doubled. World Bank. Livable cities for the 21st century, 1996. In some regions such as Latin America, the number of poor in urban areas exceeds that of the poor in rural areas. World Resources. A guide to the global environment: the urban environment, 1996–1997. Habitat II official publication. Oxford University Press, 1996:12.
2. OECD. Urban transport and sustainable development. Paris: OECD, 1995:16.
3. Paternai, P. Les bâtisseurs du Caire. Le nouvel observateur, collection dossiers, no. 11 (Demain la terre), 1992.
4. In the year 2000, the urban population will be almost 0.9 billion people in the industrialized countries (ie 75 per cent of their population), and 2.3 billion in the developing countries (ie 45 per cent), with variable rates of urbanization according to the regions of the world (in 2025, the rate of urbanization will reach 83 per cent in Latin America, 52 per cent in Africa and `only' 49 per cent in Asia.
5. Factor Four. Weizsäcker Report (provisional version), p. 257.