Western modernity is characterized by instrumental relations between humans and nature, as well as between humans themselves, that have caused irreversible environmental and social exploitation and degradation. Many policy documents, such as those by the United Nations Environment Programme, warn of the uncertainty and unpredictability of our precarious conditions due to our social and ecological interrelations and interdependencies.

Accepting that our position in the world does not allow us secure knowledge of the consequences of politics, Reversibility – Politics under Conditions of Uncertainty asks how we can act politically in a responsible way when we cannot predict the outcomes of our decisions. Hartmut Behr diagnoses Western modernity and its manifold crises as dominated by the view that fellow humans and natural environments are merely means to our individual ends. Behr introduces a novel ethics of self-restraint and the principle of reversibility – a commitment to political actions whose effects shall not be indefinite or immutable – to build a policy framework that demands both ethical and practical reflection on the conditions of action and that accounts for the limitations under which we act and live.

Identifying an urgent need for re-thinking political progress and for policy reform, Reversibility – Politics under Conditions of Uncertainty presents a new understanding of the self and of political responsibility centred in a genuine acknowledgment of the human condition.

Hartmut Behr is professor of international politics at Newcastle University (UK).

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“As we live in a world of increasing precariousness, a study on the kind of politics to respond to it is necessary if we, humans of the Anthropocene, have any intention to survive. In Hartmut Behr’s book we are not disappointed. We receive guidance through a masterpiece of practical wisdom. This book addresses the fundamental experience everyone in this world has: It is a world of uncertainties. And this is a book for political practice in the sophisticated way it develops the concept of reversibility – responsible political actions should be taken in such a way that their consequences are reversible. Behr has nourished his study with an impressive number of theoretical reflections, for which he has drawn on a wide array of literature and, in particular, a well-chosen set of philosophical and literary authorities. It is in our common interest that this book should receive far-reaching attention.” Tilo Schabert, University of Erlangen-Nuremberg

“Behr tackles a fundamental dilemma of human existence: we must act but we cannot know the future and therefore the consequences of our actions. How ought we to respond to this troubling uncertainty in an ethical and politically efficacious way? We must do our best to avoid actions whose consequences are likely to be irreversible. This ethical commitment is defended in a convincing manner and its implications for policy explored in a sophisticated and imaginative way.” Ned Lebow, Dartmouth College and King’s College, London

“This book is an impressive achievement. It guides the reader with clarity and confidence in outlining a concept of reversibility that skilfully combines theoretical nuance with policy relevance.” Magdalena Zolkos, University of Jyväskylä

“Policymakers and scholars alike are having to come to grips with the condition of uncertainty and unpredictability. When climate change and other complex challenges render the world around us seemingly uncontrollable, how should we respond politically and ethically? Behr’s timely intervention tackles this question head on, suggesting a new set of ethical principles around reversibility for policy and political action. This book is essential reading for all seeking to develop policy and politics in an uncertain world.” Milja Kurki, Aberystwyth University

“Against the deterministic assumptions of rationalism, Reversibility – Politics under Conditions of Uncertainty presents a groundbreaking argument that takes us from the characteristics of the human condition through to their implications for thinking and acting in a non-linear, contingent world. The book is a tour de force of passionate philosophical thinking, but more importantly a deeply persuasive account of how we need to think, judge and act beyond and through the human in the Anthropocene.” Kimberly Hutchings, Queen Mary University of London