Tim Mulgan

What do we owe to our descendants? How do we balance their needs against our own? Tim Mulgan develops a new theory of our obligations to future generations, based on a new rule-consequentialist account of the morality of individual reproduction. He also brings together several different contemporary philosophical discussions, including the demands of morality and international justice. His aim is to produce a coherent, intuitively plausible moral theory that is not unreasonably demanding, even when extended to cover future people. While the book focuses on developing this new account, there are also substantial discussions of alternative views, especially contract-based accounts of intergenerational justice and competing forms of consequentialism.

Our everyday notions of responsibility are often driven by our need to justify ourselves to specific others – especially those we harm, wrong, or otherwise affect. One challenge for contemporary ethics is to extend this interpersonal urgency to our relations with those future people who are harmed or affected by our actions. In this article, I explore our responsibility for climate change by imagining a possible ‘broken future’, damaged by the carbon emissions of previous generations, and then asking what its inhabitants might think of our current behaviour, our moral thinking, and our excuses. In particular, I will focus on a simplified scenario where present people can only avoid a broken future by sacrificing Rawlsian favourable conditions. Suppose we refuse to avoid a broken future, on the grounds that we cannot be expected to make such great sacrifices. If the broken future lacks favourable conditions, will its inhabitants accept our excuses? Will they hold us responsible for things we regard as excusable? If so, should we be guided by their judgements or by our own?

An introductory ethics course serves many and often disparate ends, so much so that it may be difficult to find a theme or question that can tie these ends together in a coherent course narrative. This paper shares the author’s attempt to do so. In addition to high student interest in the subject, the topic of our obligation to future generations has the advantage of naturally leading a course through several systematic areas of philosophical importance. This topic lends itself not only to moral theory (e.g. the Nonidentity Problem), but also metaphysics (e.g. the metaphysics of personhood underpinning the Nonidentity Problem), political theory (e.g. utilitarian vs. Rawlsian answers to the question), and applied ethics (e.g. population policies). The author speaks to this topic’s adaptability to various levels of study (introductory, advanced, and graduate) and explains how the theme is taught at each level.

Il cambiamento climatico presenta caratteristiche inedite che mettono in di- scussione il pensiero morale cui siamo abituati. In questo saggio, si rico- struiscono le modifiche che sarebbero necessarie per pensare le questioni morali poste dalla prospettiva di un mondo che subisca gli effetti del cam- biamento climatico: si potrebbe trattare di un mondo in frantumi, dove non ci sono più le condizioni minime di benessere, e le nozioni cui siamo abi- tuati – come certi diritti o l'ideale dell'eguaglianza – non valgono più e debbono venire sostituite da una nuova etica, che non potrà più affidarsi a intuizioni morali, per quanto solide e radicate.Climate change has new features that challenge our standard ethical thought. In this paper, the changes that are needed to deal with the moral is- sues raised in a world affected by the consequences of climate change are outlined. A climate-change-affected world might be a broken world, where no favorable conditions hold and notions which we were used to – such as rights or the ideal of equality – are no longer valid and should be replaced with a new ethic. No appeal to entrenched moral intuitions will work in such a new world

Two familiar worldviews dominate Western philosophy: materialist atheism and the benevolent God of the Abrahamic faiths. Tim Mulgan explores a third way. Ananthropocentric Purposivism claims that there is a cosmic purpose, but human beings are irrelevant to it. Purpose in the Universe develops a philosophical case for Ananthropocentric Purposivism that it is at least as strong as the case for either theism or atheism. He draws on a range of secular and religious ethical traditions to conclude that a non-human-centred cosmic purpose can ground a distinctive human morality. Our moral practices, our view of the moral universe, and our moral theory are all transformed if we shift from the familiar choice between a universe without meaning and a universe where humans matter to the less self-aggrandising thought that, while it is about something, the universe is not about us.

Drawing on the author's recent bookEthics for a Broken World, this article explores the philosophical implications of the fact that climate change – or something like it – might lead to abroken worldwhere resources are insufficient to meet everyone's basic needs, and where our affluent way of life is no longer an option. It argues that the broken world has an impact, not only on applied ethics, but also on moral theory. It then explores that impact. The article first argues that the broken world creates severe difficulties for both libertarians and contractualists. It then explores the impact of the broken world on utilitarianism – and especially on reflective equilibrium arguments for rule-utilitarianism. The article concludes that, while such arguments may still be viable, the form of rule-utilitarianism that results will be less moderate and less liberal than contemporary rule-utilitarians might hope.

Traditional Consequentialism is based on a demanding principle of impartial maximization. Michael Slote's 'Satisficing Consequentialism' aims to reduce the demands of Consequentialism, by no longer requiring us to bring about the best possible outcome. This paper presents a new objection to Satisficing Consequentialism. We begin with a simple thought experiment, in which an agent must choose whether to save the lives of ten innocent people by using a sand bag or by killing an innocent person. The main aim of the paper is to demonstrate that, if it is to avoid making unreasonable demands, Satisficing Consequentialism must allow such an agent to kill. It is argued that this result is much more counter-intuitive than the fact that Maximizing Consequentialism permits agents to kill in order to produce the best consequences. The conclusion is that Satisficing Consequentialism is not an acceptable moral theory.

Climate change has obvious practical implications. It will kill millions of people, wipe out thousands of species, and so on. My question in this paper is much narrower. How might climate change impact on moral theory – and especially on the debate between utilitarians and their non-utilitarian rivals? I argue that climate change creates serious theoretical difficulties for non-utilitarian moral theories – especially those that based morality or justice on any contract or bargain for reciprocal advantage. Climate change thus tips the dialectical balance in favour of utilitarianism. However, I also argue that, because it upsets assumptions that lie behind the most plausible forms of modern utilitarianism, climate change may also push utilitarianism in a more austere and demanding direction.

The article discusses Michael Slote's Satisficing Consequentialism, which is the view that moral agents are not required to maximise the good, but merely to produce a sufficient amount of good. It is argued that Satisficing Consequentialism is not an acceptable alternative to Maximising Consequentialism. In particular, it is argued that Satisficing Consequentialism cannot be less demanding in practice than Maximising Consequentialism without also endorsing a wide range of clearly unacceptable actions. It is then argued that Slote's inability to provide adequate reasons for moral satisficing stems from a mistaken analogy between rationality and morals. The sense of 'good enough' which is relevant to morality is one which focusses on the effort an agent puts in, rather than on the outcome she produces. However, replacing outcomes with efforts would undermine Slote's Consequentialist project. Finally, it is suggested that similar problems will be faced by others who seek to construct essentially Consequentialist theories which are not unduly demanding.

A basic feature of liberal political philosophy is its commitment to religious neut‐rality. Contemporary philosophical discussion of intergenerational justice violates this com‐mitment, as it proceeds on the basis of controversial metaphysical assumptions. The Contractualist notion of a power imbalance between generations and Derek Parfit’s non‐identity claims both presuppose that humans are not reborn. Yet belief in rebirth underlies Hindu and Buddhist traditions espoused by millions throughout the world. These traditions clearly constitute what John Rawls dubs “reasonable comprehensive doctrines”, and therefore cannot be dismissed by political liberals. In many societies, including the USA, the UK, and India, belief in rebirth exists alongside other traditions, as well as modern Western views. A liberal theory for such societies must be impartial regarding rebirth, and the after‐life in general. Two alternatives forms of liberal neutrality are sketched, based on Contractualism and Consequentialism.

Imagine living in the future in a world already damaged by humankind, a world where resources are insufficient to meet everyone's basic needs and where a chaotic climate makes life precarious. Then imagine looking back into the past, back to our own time and assessing the ethics of the early twenty-first century. "Ethics for a Broken World" imagines how the future might judge us and how living in a time of global environmental degradation might utterly reshape the politics and ethics of the future. This book is presented as a series of history of philosophy lectures given in the future, studying the classic texts from a past age of affluence, our own time. The central ethical questions of our time are shown to look very different from the perspective of a ruined world. The aim of "Ethics for a Broken" World is to look at our present with the benefit of hindsight - to reimagine contemporary philosophy in an historical context - and to highlight the contingency of our own moral and political ideals.

Total utilitarianism implies Parfit's repugnant conclusion. For any world containing ten billion very happy people, there is a better world where a vast number of people have lives barely worth living. One common response is to claim that life in Parfit's Z is better than he suggests, and thus that his conclusion is not repugnant. This paper shows that this strategy cannot succeeed. Total utilitarianism also implies a reverse repugnant conclusion. For any world where ten billion people have lives of excruciating agony, there is a worse world where a vast number of people have lives almost worth living. This reverse repugnant conclusion is at least as repugnant as Parfit's original. If we avoid the latter by raising the zero level, then the former becomes more repugnant. We cannot save total utilitarianism by tinkering with the zero level