Abstract
Resilience is replacing sustainability as the buzzword for developing better solutions to our current environmental issues. But resilience is a multifaceted concept which cannot be reduced to single dimensions as it is usually done in engineering or ecology. This book, edited and written by professionals of different backgrounds but with expertise on Water and Sanitation Systems (WSS), seeks precisely to offer a renewed and much more ambitious conceptualization o resilience able to confront the enormous challenges faced by WSS in the world today, especially the sheer injustice of billions of humans without safe and reliable water and sanitation. As professor Tapio Katko states in the preface, if the problem is not the resource or the technology but lies in faulty and unjust governance and institutions, then the concept of resilience needs to expand its horizons and move from the relatively well known and safe world of technology and management to the much more difficult and uncertain social and political arenas.