From the first vague idea to use Konrad Hagedorn's 60th birthday as an inspi- tion for taking stock of his vibrant academic contributions, this joint book project has been a great pleasure for us in many ways. Pursuing Hagedorn's intellectual development, we have tried to reflect on the core questions of humanity according to Ernst Bloch "Who are we?," "Where do we come from?" and "Where are we heading?" In this way, and without knowing it, Konrad Hagedorn initiated a c- lective action process he would have very much enjoyed ... if he had been allowed to take part in it. But it was our aim and constant motivation to surprise him with this collection of essays in his honour. Konrad Hagedorn was reared as the youngest child of a peasant family on a small farm in the remote moorland of East Frisia, Germany. During his childhood in the poverty-ridden years after the Second World War, he faced a life where humans were heavily dependent on using nature around them for their livelihoods; meanwhile, he learned about the fragility of the environment. As a boy, he - tended a one-room schoolhouse, where his great intellectual talents were first r- ognised and used for co-teaching his schoolmates. These early teaching expe- ences might have laid the foundations for his later becoming a dedicated lecturer and mentor.

Transdisciplinarity is a new way of scientifically meeting the challenges of sustainability. Indeed, interdisciplinary collaboration and co-operation with non-academic 'practice partners' is at the core of this; creating contextualised, socially relevant knowledge about complex real-world problems. Transdisciplinary Research and Sustainability breaks new ground by presenting transdisciplinary research in practice, drawing on recent advances by the vibrant transdisciplinary research communities in the German-speaking world. It describes methodological innovations developed to address wide-ranging contemporary issues including climate change adaptation, energy policy, sustainable agriculture and soil conservation. Furthermore, the authors reflect on the challenges involved in integrating non-academic actors in scientific research, on the tensions that arise in the encounter of theory and praxis, and on the inherently normative, political nature of sustainability research. Highlighting the need for academic institutions to be transformed to reflect transdisciplinarity, this timely volume will appeal to postgraduate students and postdoctoral researchers interested in fields such as Sustainability Science, Transdisciplinary Studies and Philosophy of Science.

Transdisciplinarity is a new way of scientifically meeting the challenges of sustainability. Indeed, interdisciplinary collaboration and co-operation with non-academic 'practice partners' is at the core of this; creating contextualised, socially relevant knowledge about complex real-world problems. Transdisciplinary Research and Sustainability breaks new ground by presenting transdisciplinary research in practice, drawing on recent advances by the vibrant transdisciplinary research communities in the German-speaking world. It describes methodological innovations developed to address wide-ranging contemporary issues including climate change adaptation, energy policy, sustainable agriculture and soil conservation. Furthermore, the authors reflect on the challenges involved in integrating non-academic actors in scientific research, on the tensions that arise in the encounter of theory and praxis, and on the inherently normative, political nature of sustainability research. Highlighting the need for academic institutions to be transformed to reflect transdisciplinarity, this timely volume will appeal to postgraduate students and postdoctoral researchers interested in fields such as Sustainability Science, Transdisciplinary Studies and Philosophy of Science.

From the first vague idea to use Konrad Hagedorn's 60th birthday as an inspi- tion for taking stock of his vibrant academic contributions, this joint book project has been a great pleasure for us in many ways. Pursuing Hagedorn's intellectual development, we have tried to reflect on the core questions of humanity according to Ernst Bloch "Who are we?," "Where do we come from?" and "Where are we heading?" In this way, and without knowing it, Konrad Hagedorn initiated a c- lective action process he would have very much enjoyed ... if he had been allowed to take part in it. But it was our aim and constant motivation to surprise him with this collection of essays in his honour. Konrad Hagedorn was reared as the youngest child of a peasant family on a small farm in the remote moorland of East Frisia, Germany. During his childhood in the poverty-ridden years after the Second World War, he faced a life where humans were heavily dependent on using nature around them for their livelihoods; meanwhile, he learned about the fragility of the environment. As a boy, he - tended a one-room schoolhouse, where his great intellectual talents were first r- ognised and used for co-teaching his schoolmates. These early teaching expe- ences might have laid the foundations for his later becoming a dedicated lecturer and mentor.