Parfit's requirements for an ideal Theory X cannot be fully met since the Mere Addition Principle and Non-Antiegalitarianism imply the Repugnant Conclusion: Theory X does not exist. However, since the Repugnant Conclusion is really compelling, the Impersonal Total Principle should be adopted for impartial comparisons concerning future generations. Nevertheless, where our own interests are affected, we may yet choose to be partial, trading off our concern for future goodness with our self-interests. Theory X' meets all Parfit's requirements except the Mere (...) Addition Principle in less compelling cases. (shrink)

We are often faced with choices that involve the weighing of people's lives against each other, or the weighing of lives against other good things. These are choices both for individuals and for societies. A person who is terminally ill may have to choose between palliative care and more aggressive treatment, which will give her a longer life but at some cost in suffering. We have to choose between the convenience to ourselves of road and air travel, and the lives (...) of the future people who will be killed by the global warming we cause, through violent weather, tropical disease, and heat waves. We also make choices that affect how many lives there will be in the future: as individuals we choose how many children to have, and societies choose tax policies that influence people's choices about having children. These are all problems of weighing lives. How should we weigh lives? Weighing Lives develops a theoretical basis for answering this practical question. It extends the work and methods of Broome's earlier book Weighing Goods to cover the questions of life and death. Difficult problems come up in the process. In particular, Weighing Lives tackles the well-recognized, awkward problems of the ethics of population. It carefully examines the common intuition that adding people to the population is ethically neutral - neither a good nor a bad thing - but eventually concludes this intuition cannot be fitted into a coherent theory of value. In the course of its argument, Weighing Lives examines many of the issues of contemporary moral theory: the nature of consequentialism and teleology; the transitivity, continuity, and vagueness of betterness; the quantitative conception of wellbeing; the notion of a life worth living; the badness of death; and others. This is a work of philosophy, but one of its distinctive features is that it adopts some of the precise methods of economic theory (without introducing complex mathematics). Not only philosophers, but also economists and political theorists concerned with the practical question of valuing life, should find the book's conclusions highly significant to their work. (shrink)

By contributing a few hundred dollars to a charity like UNICEF, a prosperous person can ensure that fewer poor children die, and that more will live reasonably long, worthwhile lives. Even when knowing this, however, most people send nothing, and almost all of the rest send little. What is the moral status of this behavior? To such common cases of letting die, our untutored response is that, while it is not very good, neither is the conduct wrong. What is the (...) source of this lenient assessment? In this contentious new book, one of our leading philosophers argues that our intuitions about ethical cases are generated not by basic moral values, but by certain distracting psychological dispositions that all too often prevent us from reacting in accord with our commitments. Through a detailed look at how these tendencies operate, Unger shows that, on the good morality that we already accept, the fatally unhelpful behavior is monstrously wrong. By uncovering the eminently sensible ethics that we've already embraced fully, and by confronting us with empirical facts and with easily followed instructions for lessening serious suffering appropriately and effectively, Unger's book points the way to a compassionate new moral philosophy. (shrink)

This reprint of a collection of essays on problems concerning future generations examines questions such as whether intrinsic value should be placed on the preservation of mankind, what are our obligations to posterity, and whether potential people have moral rights.

Welfare biology is the study of living things and their environment with respect to their welfare. Despite difficulties of ascertaining and measuring welfare and relevancy to normative issues, welfare biology is a positive science. Evolutionary economics and population dynamics are used to help answer basic questions in welfare biology : Which species are affective sentients capable of welfare? Do they enjoy positive or negative welfare? Can their welfare be dramatically increased? Under plausible axioms, all conscious species are plastic and all (...) plastic species are conscious. More complex niches favour the evolution of more rational species. Evolutionary economics also supports the common-sense view that individual sentients failing to survive to mate suffer negative welfare. A kind of God-made fairness between species is also unexpectedly found. The contrast between growth maximization, average welfare, and total welfare maximization is discussed. It is shown that welfare could be increased without even sacrificing numbers. Since the long-term reduction in animal suffering depends on scientific advances, strict restrictions on animal experimentation may be counter-productive to animal welfare. (shrink)

As I write this, in November 1971, people are dying in East Bengal from lack of food, shelter, and medical caxc. The suffering and death that are occurring there now axe not inevitable, 1101; unavoidable in any fatalistic sense of the term. Constant poverty, a cyclone, and a civil war have turned at least nine million people into destitute refugees; nevertheless, it is not beyond Lhe capacity of the richer nations to give enough assistance to reduce any further suffering to (...) very small proportions. The decisions arid actions of human beings can prevent this kind of suffering. Unfortunately, human beings have not made the necessary decisions. At the individual level, people have, with very few exceptions, not responded to the situation in any signihczmt way. Generally speaking, people have not given large sums to relief funds; they have not written t0 their parliamentaxy representatives demanding increased government assistance; they have not demonstrated in the streets, held symbolic fasts, or done anything else directed toward providing thc refugees with the means to satisfy their essential needs. At thc government level, no govcrmmcnt has given the sort of massive aid that would enable the refugees to survive fm: more than a few days. Britain, for instance, has given rather more than most countries. It has, to date, given £14,750,000. For comparative purposes, B1~itain’s share of thc nonreccverabla development costs of the Anglo-French Concorde project is already in excess of £275,000,000, and on present estimates will reach £440,000,¤00. The implication is that the British government values a supersonic transport more than thirty times as.. (shrink)

Challenging, with several powerful arguments, some of our deepest beliefs about rationality, morality, and personal identity, Parfit claims that we have a false view about our own nature. It is often rational to act against our own best interersts, he argues, and most of us have moral views that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions (...) that most of us will find very disturbing. (shrink)

For thirty years, Peter Singer's Practical Ethics has been the classic introduction to applied ethics. For this third edition, the author has revised and updated all the chapters and added a new chapter addressing climate change, one of the most important ethical challenges of our generation. Some of the questions discussed in this book concern our daily lives. Is it ethical to buy luxuries when others do not have enough to eat? Should we buy meat from intensively reared animals? Am (...) I doing something wrong if my carbon footprint is above the global average? Other questions confront us as concerned citizens: equality and discrimination on the grounds of race or sex; abortion, the use of embryos for research and euthanasia; political violence and terrorism; and the preservation of our planet's environment. This book's lucid style and provocative arguments make it an ideal text for university courses and for anyone willing to think about how she or he ought to live. (shrink)

AN ARDENT ENVIRONMENTALIST AND HUNTER SEEKS OUR PROPER RELATIONSHIP TO THE ANIMAL WORLD For all readers who are perplexed over humanity's proper relationship to animals, Ted Kerasote's provocative exploration of the ancient human urge to hunt will dramatize the issues that fuel this controversial debate. In his opening section, "Food" the author travels to the frozen shores of coastal Greenland, living and hunting with Inuit villagers-true hunter-gatherers-who are utterly dependent for sustenance on the seals, polar bears, and narwhal that they (...) can wrest from their punishing environment. In "Trophies," Kerasote accompanies the first Western sportsmen permitted into a remote stretch of Siberian wilderness, one of whom uses unethical stratagems to bag the worlds most coveted hunting trophy. In "Webs," we meet a hunter caught between these two extremes-the writer himself. Stalking elk near his home in Wyoming, seeking a winter's worth of meat, Kerasote encounters the pall of himself that yearns to make the kill and take the wild creature's life force into his own body. Nearing the end of his odyssey, the author attends meetings of the Fund for Animals with the organization's director, a vehement opponent of hunting. Kerasote also examines the ecological consequences of eating food produced by our agri-business system and transported in fossil fuel-consuming refrigerator trucks; next he considers the environmental impact of the death of the prey that has given its life to the hunter. Scrupulously balanced, Bloodties is a memorable book for all lovers of the outdoors-both hunters and nonhunters-and a landmark in the evolving discussion of our proper relationship to the animal world. (shrink)

Animal welfare is an issue that concerns us all. Recent advances in scientific understanding of welfare and proposals for ways of keeping animals have not fully reached the public domain. This book takes an informative approach aimed at raising the level of public debate and emphasising even though decisions are complex and compromise may sometimes be necessary, action can and should be taken now to improve animal welfare. Michael Appleby has been awarded the Universities Federation of Animal Welfare (UFAW) Hulme (...) Fellowship to write this book. (shrink)

Gentle handling of mammals , and lizards , but not of frogs and fish elevated the set-point for body temperature, i.e., produced an emotional fever, achieved only behaviourally in lizards. Heart rate, another detector of emotion in mammals, was also accelerated by gentle handling, from ca. 70 b/min to ca. 110 b/min in lizards. This tachycardia faded in about 10 min. The same handling did not significantly modify the frogs’ heart rates. The absence of emotional tachycardia in frogs and its (...) presence in lizards , together with the emotional fever exhibited by mammals and reptiles, but not by frogs or fish, would suggest that emotion emerged in the evolutionary lineage between amphibians and reptiles. Such a conclusion would imply that reptiles possess consciousness with its characteristic hedonic dimension, pleasure. The role of sensory pleasure in decision making was therefore verified in iguanas placed in a motivational conflict. To be able to reach a bait , the iguanas had to leave a warm refuge, provided with standard food, and had to venture into a cold environment. The results showed that lettuce was not necessary to the iguanas and that they traded off the palatability of the bait against the disadvantage of the cold. Thus, the behaviour of the iguanas was possibly produced, as it is in humans, through the maximization of sensory pleasure. Altogether, these results may indicate that the first elements of mental experience emerged between amphibians and reptiles. (shrink)

Advances in technology have made it possible for us to take actions that affect the numbers and identities of humans and other animals that will live in the future. Effective and inexpensive birth control, child allowances, genetic screening, safe abortion, in vitro fertilization, the education of young women, sterilization programs, environmental degradation and war all have these effects. Although it is true that a good deal of effort has been devoted to the practical side of population policy, moral theory has (...) not dealt adequately with the new possibilities. The dilemma faced by moral theory is that traditional theories cannot answer moral questions involving the creation of people. Two related problems arise. The first concerns numbers: how many people should there be? The second asks what sort of people should live and what their levels of well-being should be. Conventional social-contract theories, including the work of Rawls (1971), are restricted to situations with a fixed number of individuals. Sumner (1978) attempts to extend a Rawlsian veil-of-ignorance approach to possible people but is aware of the difficulties involved. The main problem is that possible people must be thought to benefit when they move from non-existence to existence, a view that we reject (see Section 1, Heyd, 1992, Chapter 1; McMahan, 1996a; Parfit, 1984, Appendix G). Rights-based and duty-based theories suffer from a similar problem; there must be a person who has the right or a person to whom the duty is owed (see McMahan, 1981). (shrink)

Sir Leslie Stephen (1832–1904), the founding editor of the Dictionary of National Biography, and a writer on philosophy, ethics, and literature, was educated at Eton, King's College London and Trinity College, Cambridge, where he remained as a fellow and a tutor for a number of years. Though a sickly child, he later became a keen and successful mountaineer, taking part in first ascents of nine peaks in the Alps. In 1871 he became editor of the Cornhill Magazine. During his eleven-year (...) tenure, he wrote two successful books on ethics, including The Science of Ethics in 1892, which was widely adopted as a standard textbook. This two-volume work, which was first published in 1896, brings together the lectures he gave to various ethical societies, mostly in London. Both volumes examine the ethical issues surrounding a range of topics including politics, morality, duty, and crime and punishment. (shrink)