Joerg Chet Tremmel is Fellow at the London School of Economics and Political Science. He is Editor-in-chief of the Intergenerational Justice Review and a visiting lecturer at the Johann-Wolfgang-Goethe-University Frankfurt, the University of Stuttgart and the Heinrich-Heine-University in Dusseldorf, Germany.

• 1. Introduction2. Criteria-Based Definitions of Scientific Terms3. Comparisons between Generations4. Objections to Theories of Generational Justice5. What to Sustain? Capital or Wellbeing as an Axiological Goal?6. How Much to Sustain? The Demands of Justice in the Intergenerational Context7. Conclusion

'Finally, a comprehensive work on justice between generations ... Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has provided us with the most comprehensive map available of theno-man's land of ethical thought: our obligations to future generations. As humans embark on more and more unprecedentedexperiments with the future of life on earth, this area of ethics becomes ever more urgent. If the human species someday accepts the obvious burdens owed to posterity, they may point back to this extended treatment as the beginning of a new age of morality.' Prof. Dr. Bryan Norton, distinguished professor of philosophy, Georgia Tech University, USA'Provides an extensive and comprehensive overview of current research and theory about why and how we should protect future generations ... An interdisciplinary masterpiece artfully combining practical philosophy, law, economics and social sciences. A 'must-read' for anyone interested in the topic!' Prof. Dr. Ernst von Weizsäcker, Dean, Donald Bren School of Environmental Science & Management, University of California, Santa Barbara 'Tremmel's landmark book presents both a comprehensive survey of the issue of justice to future generations and a meticulously argued original theory of duties to posterity which, he concludes, 'are stronger than is often supposed.' The book thus serves as an essential introduction to the posterity issue and as an indispensable addition to the growing library of philosophical studies in intergenerational justice.' Prof. Dr. Ernest Partridge, University of Colorado, editor of Responsibilities to Future Generations'Without question indispensable reading for anyone who laments nuclear proliferation, widening rich-poor disparities, soaring national debts, or catastrophic climate change harms-to name a few of the military, economic, environmental and other legacies that we, the living, appear destined to leave to succeeding generations' Prof. Dr. Burns H. Weston, Bessie Dutton Murray Distinguished Professor of Law Emeritus and Director, Climate Legacy Initiative, University of Iowa, USA'Finally, a comprehensive work on justice between generations! Long delegated to the margins of economic, political, and philosophical debate, Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has written a book that enables us to understand both why and how we can exercise responsibility towards the unborn whose lives we impact simply by the way we live today' Prof. Dr. Jim Dator, Director, Hawaii Research Center for Futures Studies, University of Hawaii, USA 'A theory of intergenerational justice one can actually work with. The questions Tremmel addresses will after all rise in any political context' Prof. Dr. Marcel Wissenburg, Professor of Political Theory, Radboud University and Socrates Professor of Humanist Philosophy, Wageningen University, The Netherlands'A comprehensive, solid, even superior work' Prof. Dr. Dr. h.c. Otfried H�ffe, Research Center on Political Philosophy, University of T�bingen, Germany

Joerg Chet Tremmel is Fellow at the London School of Economics and Political Science. He is Editor-in-chief of the Intergenerational Justice Review and a visiting lecturer at the Johann-Wolfgang-Goethe-University Frankfurt, the University of Stuttgart and the Heinrich-Heine-University in Dusseldorf, Germany.

• 1. Introduction2. Criteria-Based Definitions of Scientific Terms3. Comparisons between Generations4. Objections to Theories of Generational Justice5. What to Sustain? Capital or Wellbeing as an Axiological Goal?6. How Much to Sustain? The Demands of Justice in the Intergenerational Context7. Conclusion

'Finally, a comprehensive work on justice between generations ... Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has provided us with the most comprehensive map available of theno-man's land of ethical thought: our obligations to future generations. As humans embark on more and more unprecedentedexperiments with the future of life on earth, this area of ethics becomes ever more urgent. If the human species someday accepts the obvious burdens owed to posterity, they may point back to this extended treatment as the beginning of a new age of morality.' Prof. Dr. Bryan Norton, distinguished professor of philosophy, Georgia Tech University, USA'Provides an extensive and comprehensive overview of current research and theory about why and how we should protect future generations ... An interdisciplinary masterpiece artfully combining practical philosophy, law, economics and social sciences. A 'must-read' for anyone interested in the topic!' Prof. Dr. Ernst von Weizsäcker, Dean, Donald Bren School of Environmental Science & Management, University of California, Santa Barbara 'Tremmel's landmark book presents both a comprehensive survey of the issue of justice to future generations and a meticulously argued original theory of duties to posterity which, he concludes, 'are stronger than is often supposed.' The book thus serves as an essential introduction to the posterity issue and as an indispensable addition to the growing library of philosophical studies in intergenerational justice.' Prof. Dr. Ernest Partridge, University of Colorado, editor of Responsibilities to Future Generations'Without question indispensable reading for anyone who laments nuclear proliferation, widening rich-poor disparities, soaring national debts, or catastrophic climate change harms-to name a few of the military, economic, environmental and other legacies that we, the living, appear destined to leave to succeeding generations' Prof. Dr. Burns H. Weston, Bessie Dutton Murray Distinguished Professor of Law Emeritus and Director, Climate Legacy Initiative, University of Iowa, USA'Finally, a comprehensive work on justice between generations! Long delegated to the margins of economic, political, and philosophical debate, Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has written a book that enables us to understand both why and how we can exercise responsibility towards the unborn whose lives we impact simply by the way we live today' Prof. Dr. Jim Dator, Director, Hawaii Research Center for Futures Studies, University of Hawaii, USA 'A theory of intergenerational justice one can actually work with. The questions Tremmel addresses will after all rise in any political context' Prof. Dr. Marcel Wissenburg, Professor of Political Theory, Radboud University and Socrates Professor of Humanist Philosophy, Wageningen University, The Netherlands'A comprehensive, solid, even superior work' Prof. Dr. Dr. h.c. Otfried H�ffe, Research Center on Political Philosophy, University of T�bingen, Germany

Joerg Chet Tremmel is Fellow at the London School of Economics and Political Science. He is Editor-in-chief of the Intergenerational Justice Review and a visiting lecturer at the Johann-Wolfgang-Goethe-University Frankfurt, the University of Stuttgart and the Heinrich-Heine-University in Dusseldorf, Germany.

• 1. Introduction2. Criteria-Based Definitions of Scientific Terms3. Comparisons between Generations4. Objections to Theories of Generational Justice5. What to Sustain? Capital or Wellbeing as an Axiological Goal?6. How Much to Sustain? The Demands of Justice in the Intergenerational Context7. Conclusion

'Finally, a comprehensive work on justice between generations ... Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has provided us with the most comprehensive map available of theno-man's land of ethical thought: our obligations to future generations. As humans embark on more and more unprecedentedexperiments with the future of life on earth, this area of ethics becomes ever more urgent. If the human species someday accepts the obvious burdens owed to posterity, they may point back to this extended treatment as the beginning of a new age of morality.' Prof. Dr. Bryan Norton, distinguished professor of philosophy, Georgia Tech University, USA'Provides an extensive and comprehensive overview of current research and theory about why and how we should protect future generations ... An interdisciplinary masterpiece artfully combining practical philosophy, law, economics and social sciences. A 'must-read' for anyone interested in the topic!' Prof. Dr. Ernst von Weizsäcker, Dean, Donald Bren School of Environmental Science & Management, University of California, Santa Barbara 'Tremmel's landmark book presents both a comprehensive survey of the issue of justice to future generations and a meticulously argued original theory of duties to posterity which, he concludes, 'are stronger than is often supposed.' The book thus serves as an essential introduction to the posterity issue and as an indispensable addition to the growing library of philosophical studies in intergenerational justice.' Prof. Dr. Ernest Partridge, University of Colorado, editor of Responsibilities to Future Generations'Without question indispensable reading for anyone who laments nuclear proliferation, widening rich-poor disparities, soaring national debts, or catastrophic climate change harms-to name a few of the military, economic, environmental and other legacies that we, the living, appear destined to leave to succeeding generations' Prof. Dr. Burns H. Weston, Bessie Dutton Murray Distinguished Professor of Law Emeritus and Director, Climate Legacy Initiative, University of Iowa, USA'Finally, a comprehensive work on justice between generations! Long delegated to the margins of economic, political, and philosophical debate, Tremmel puts the subject of 'intergenerational justice' where it belongs: at the very center of our ethical concerns today' Prof. Dr. Claus Dierksmeier, Stonehill College, Easton, USA 'Tremmel has written a book that enables us to understand both why and how we can exercise responsibility towards the unborn whose lives we impact simply by the way we live today' Prof. Dr. Jim Dator, Director, Hawaii Research Center for Futures Studies, University of Hawaii, USA 'A theory of intergenerational justice one can actually work with. The questions Tremmel addresses will after all rise in any political context' Prof. Dr. Marcel Wissenburg, Professor of Political Theory, Radboud University and Socrates Professor of Humanist Philosophy, Wageningen University, The Netherlands'A comprehensive, solid, even superior work' Prof. Dr. Dr. h.c. Otfried H�ffe, Research Center on Political Philosophy, University of T�bingen, Germany