’Cities have now begun to receive the attention they deserve as frontline actors in the struggle for environmental sustainability and this book makes an important contribution to our knowledge of why and how these efforts are unfolding. Those who seek a better understanding of the uses of sustainability indicators in urban environmental governance will do well to read this volume.’ Frank Fischer, Rutgers University, USA ’As the world’s states and global institutions struggle to make meaningful progress toward solutions to the central environmental and sustainability challenges of our age, attention increasingly turns to cities. Pettibone’s in-depth research focuses on 6 urban sustainability leaders in the United States and Germany, yielding insights about governance, sustainability indicators, strategic planning and civil society involvement. Urban sustainability governance is rich, interesting and dynamic, but it also faces a host of challenges with which urban activists and researchers must grapple.’ Stacy VanDeveer, University of New Hampshire, USA