Book excerpt: The 1992 Rio Summit and subsequent literature and debate has focused on 'green' issues such as biodiversity, climate change and marine pollution. Much less has been written concerning the 'brown' agenda: factors such as poor sanitation and water quality, air pollution and housing problems which are particularly prevalent in Third World cities. Sustainability, the Environment and Urbanisation provides a comprehensive overview of the brown agenda, with case studies and examples from a number of Southern countries. It looks at the broad economic context behind the problems and covers the conceptual issues of sustainability, infrastructure and health programmes, as well as assessing environmental appraisal methods. Clearly written, with contributions from some of the leading experts in the field, the book will appeal to students on environmental and developmental courses, researchers, and all those concerned with the 'healthy cities' movement.