In this 24th edition of "State of the World" - long established as the most authoritative and accessible annual guide to our progress towards a sustainable future - the studies pay particular attention to cities. In 2007, world population will tip from mostly rural to mostly urban. Already, some 1 billion individuals, one in every three urbanites, live in "slums", some 90 per cent of which are found in Africa, Asia, and Latin America. Meanwhile, the world's most developed urban centres already stress finite resources. A city like London requires roughly 58 times its land area to supply its residents with food and timber.
Published annually in 28 languages, "State of the World" is relied upon by national governments, UN agencies, development workers and law-makers for its authoritative and up-to-the-minute analysis and information. It is essential for anyone concerned with building a positive, global future.