The argument in this paper is that although rationality and morality are distinguishable concepts, there is nevertheless a rational morality, a set of principles, namely, which it is rational of all to require of all. The argument of this paper is that such a morality would certainly issue in a general condemnation of aggressive war. (Whether this also makes it irrational for States to engage in such activities is another, and not entirely settled, matter). Correlatively, it would issue in a (...) strong right of defense. Would this right be sufficient to include resort to nuclear deterrence, if need be? It is argued that the answer must be in the affirmative - although the question of ‘need’ is by no means settled in current circumstances. (shrink)

Ultimately this book provides a theory of intergenerational justice that is both intellectually robust and practical with wide applicability to law and policy.

The aim of the paper is to confront some challenges raised by intergenerational justice from the perspective of Martha Nussbaum’s capabilities approach. After having sketched her account, the essay deals with some objections to it from an environmental perspective, arguing that, contrary to some critics, it can be a valuable basis for reflecting on our duties towards future generations. More precisely, I focus on how the CA provides promising insights to address two central problems of intergenerational ethics: 1) the so-called (...) ‘circumstances of justice;’ 2) the problem of the asymmetry between present and future generations. In both cases, I argue that the philosophical anthropology underlying the CA is better suited than the contractualist one to include future generations into the realm of justice and ground our motivation to care for them. After underlining the potential of the CA, in the concluding remarks I will underline a potential flaw of this theory, i.e. the lack of guidance when it comes to the trade-offs between our rights and well-being and those of the unborn. (shrink)

This paper develops a form of moral actualism that can explain the procreative asymmetry. Along the way, it defends and explains the attractive asymmetry: the claim that although an impermissible option can be self-conditionally permissible, a permissible option cannot be self-conditionally impermissible.

The aim of this investigation is to answer the question of why it is prima facie morally wrong to cause or contribute to the extinction of species. The first potential answer investigated in the book is that other species are instrumentally valuable for human beings. The results of this part of the investigation are that many species are instrumentally valuable for human beings but that not all species are equally valuable in all cases. The instrumental values of different species also (...) have to compete with other human values. Sometimes these other values probably outweigh the value of the continued existence of the species. In general the degree of uncertainty is very high and the precautionaty principle is recommended to deal with these uncertainties. We also found that we have a duty to consider the interests of future generations of human beings and that these duties, in general, speak in favour of preservation. Anthropocentric instrumentalism therefore provides us with rather strong reasons to consider many cases of human caused extinction as prima facie morally wrong. Even so, anthropocentric instrumentalism does not fully account for the moral intuition we set out to investigate. The next potential answer that is investigated in the book is that species have a moral standing in their own right. The result of this part of the investigation is that this idea is highly unlikely, in particular because species cannot have any interests to consider. Anotgher potential answer is that species have intrinsic value in some other meaning that does not imply moral standing. We concluded that it is possible to be subjectively valued as an end and that many species have properties that make them highly suitable for being valued as ends by human beings. Finally, we found that our contributions to the extinction of species in most cases frustrate the interests of many non-human sentient beings. This is true if the species in question is made up of sentient individuals, and it is also true when the species in question is made up of non-sentient individuals that have instrumental value for sentient individuals of other species. There are exceptions to this rule, but all in all it seems that the inclusion of non-human sentient individuals together with us humans as moral objects, in most cases, tip the scale drastically in favour of preservation. The main result of the investigation is that there is not one but several explanations to why it is prima facie morally wrong to contribute to the extinction of species – and all of them are about duties to respect the interests of individual sentient animals, including human beings. (shrink)

The book contains the first part of an investigation aimed at finding out why it is morally wrong to cause species to go extinct. That it is morally wrong seems to be a very basic and widely held intuition. It seems reasonable that a moral theory worth taking seriously ought to be able to account for that intuition. The most common attempt to answer our question is to refer to the instrumental value of the species for human beings – the (...) anthropocentric instrumental approach as I have chosen to call it. This is the answer that is discussed in this book. We have found many ways in which different species have instrumental value for human beings – both individually and as a part of ecosystems and of biodiversity in general. We could not guarantee however that this includes all species. In some cases, it also turned out that the instrumental value of the species in fact favours exploitation maybe even as far to the extinction of the species. We also noticed that there is no guarantee that the instrumental value of the species can always outweigh the competing values that we would gain by different encroachments that contribute to the extinction of the species. We found however that there are some special circumstances that help push the scale in the direction of preservation. I am thinking of some particular types of value such as choice value and transformation value – values that in general seem to favour preservation of species. This principle shows us that it would be rational from an anthropocentric instrumental vantage point to rule in favour of preservation in many of the cases where we are uncertain about the value of the species, about the best way of utilising the value, or about the connection between the species and other species or biodiversity in general. I am finally thinking of the moral principle that we have duties to consider the future interests of generations to come. We found that with a few exceptions it is justified to adopt such a principle. This in combination with the principles of precaution ought in general to urge us not to cause the extinction of species unless we have very trustworthy evidence that they will not turn out to be more valuable alive to future generations in comparison to what we can get from driving them to extinction. In relation to the discussion about the value of other species for human beings, it is worth noticing that all the arguments we have found in favour of preservation would be even stronger – and therefore account even better for the intuition that it is at least prima facie wrong to cause extinction – if we also accepted that other entities than human beings can have moral standing. Finally, we noticed that our moral intuitions strongly indicate that even in the cases where the instrumental value of other species for human beings talks in favour of preservation, there is still something lacking. Something we have to account for in order to totally account for our moral intuition against extinction. The conclusion will have to be that anthropocentric instrumentalism is in favour of preservation in many cases – probably in more cases than is generally acknowledged – but that it is not enough to give a complete account of the intuition that it is prima facie morally wrong to contribute to the extinction of species. We therefore have to continue our search for such an account. (shrink)

In Derek Parfit's original formulation the Repugnant Conclusion is characterized as follows: “For any possible population of at least ten billion people, all with a very high quality of life, there must be some much larger imaginable population whose existence, if other things are equal, would be better even though its members have lives that are barely worth living” (Parfit 1984). The Repugnant Conclusion highlights a problem in an area of ethics which has become known as population ethics . The (...) last three decades have witnessed an increasing philosophical interest in questions such as “Is it possible to make the world a better place by creating additional happy creatures?” and “Is there a moral obligation to have children?” The main problem has been to find an adequate theory about the moral value of states of affairs where the number of people, the quality of their lives, and their identities may vary. Since, arguably, any reasonable moral theory has to take these aspects of possible states of affairs into account when determining the normative status of actions, the study of population ethics is of general import for moral theory. As the name indicates, Parfit finds the Repugnant Conclusion unacceptable and many philosophers agree. However, it has been surprisingly difficult to find a theory that avoids the Repugnant Conclusion without implying other equally counterintuitive conclusions. Thus, the question as to how the Repugnant Conclusion should be dealt with and, more generally, what it shows about the nature of ethics has turned the conclusion into one of the cardinal challenges of modern ethics. (shrink)

According to the Asymmetry, it is wrong to bring a miserable child into existence but permissible not to bring a happy child into existence. When it comes to procreation, we don’t have complete procreative liberty. But we do have some discretion. The Asymmetry seems highly intuitive. But a plausible account of the Asymmetry has been surprisingly difficult to provide, and it may well be that most moral philosophers – or at least most consequentialists – think that all reasonable efforts to (...) provide such an account have by now been exhausted. In this paper, I argue that, despite the difficulties, the Asymmetry is too important to be set aside. I also note a handful of accounts of the Asymmetry that have been proposed and why they fail. It seems, for example, that it will not do to say that some people matter morally and others don’t, or that a person matters morally in some worlds but not others. My own conclusion is that, while we are bound to say all people matter morally – you, me and the merely possible – we are not bound to say that all their losses– or all ours– matter morally. We can instead distinguish between morally significant and insignificant losses, with the distinction between the two being a matter of where the loss is incurred in relation to the person who incurs it. This way of looking at things – which I call Variabilism– provides the basis for a plausible account of the Asymmetry. The availability of such an account suggests, I think, that our prospects for rescuing the Asymmetry are bright. (shrink)

According to typical ought-implies-can principles, if you have an obligation to vaccinate me tomorrow, then you can vaccinate me tomorrow. Such principles are uninformative about conditional obligations: what if you only have an obligation to vaccinate me tomorrow if you synthesize a vaccine today? Then maybe you cannot vaccinate me tomorrow ; what you can do instead, I propose, is make it the case that the conditional obligation is not violated. More generally, I propose the ought-implies-can-obey principle: an agent has (...) an obligation only at times at which the agent can obey the obligation. I also propose another principle, which captures the idea that ‘ought’ implies ‘can avoid’. I defend both principles mainly by arguing that they help explain why agents lose obligations, including conditional ones. (shrink)

This paper argues that we can benefit or harm people by creating them, but only in the sense that we can create things that are good or bad for them. What we cannot do is to confer comparative benefits and harms to people by creating them or failing to create them. You are not better off (or worse off) created than you would have been had you not been created, for nothing has value for you if you do not exist, (...) not even neutral value. (shrink)

The way our decisions and actions can affect future generations is surrounded by uncertainty. This is evident in current discussions of environmental risks related to global climate change, biotechnology and the use and storage of nuclear energy. The aim of this paper is to consider more closely how uncertainty affects our moral responsibility to future generations, and to what extent moral agents can be held responsible for activities that inflict risks on future people. It is argued that our moral responsibility (...) to posterity is limited because our ability to foresee how present decisions and activities will affect future people is limited. The reason for this is primarily that we are in a situation of ignorance regarding the pace and direction of future scientific and technological development. This ignorance reduces our responsibility in a temporal dimension because in most areas it is impossible to predict the interests and resource needs of future generations. In one area, however, we have fairly reliable knowledge about future people. It is reasonable to assume that future human beings will have the same basic physiological (physical and biological) needs as we have. On this basis, it is argued that we can be held responsible for activities causing avoidable damage to critical resources that are necessary to provide for future physiological needs. Furthermore, it is suggested that it is prima facie immoral to impose risks upon future generations in cases where the following conditions are fulfilled: (1) the risk poses a threat to the ability of future generations to meet their physiological needs, and (2) the risk assessment is supported by scientifically based harm scenarios. (shrink)

The purpose of this paper is to propose and consider a new constitutional provision that can contribute to the protection of the vital needs of future generations. The proposal I wish to elaborate can be termed the posterity provision, and it has both substantive and procedural elements. The aim of this constitutional provision is twofold. The first is to encourage state authorities to make more future‐oriented deliberations and decisions. The second is to create more public awareness and improve the process (...) of public deliberation about issues affecting near and remote future generations. It is argued that a good case can be made for the proposed reforms compared with alternative substantive constitutional environmental provisions found in existing constitutions and in the literature on legal and political theory. The main reason for this is that the proposed law constitutes a better and more adequate basis for judicial enforcement than the alternatives, which tend to be very vague or unclear. In this connection, I contend that there are both epistemological and moral reasons for introducing constitutional provisions that focus on the protection of critical natural resources essential for meeting the basic physiological needs of future people. It is also argued that the posterity provision can be defended on the basis of central ideas and ideals in recent theory of deliberative democracy. (shrink)

Este artículo realiza una defensa de las axiologías centradas en el sufrimiento, que sostienen la prioridad de evitar el sufrimiento frente a la promoción de otros valores. Para ello, explica en primer lugar cómo ciertas cuestiones relativas a la creación de individuos sugieren la existencia de una asimetría entre el sufrimiento y la felicidad. Continúa describiendo un conjunto de argumentos a favor de la prioridad del sufrimiento relativos a individuos ya existentes. Asimismo, señala y responde a distintas objeciones que podrían (...) ser dirigidas contra estas axiologías. Finalmente, concluye que las posiciones centradas en el sufrimiento no están todavía lo bastante exploradas y pueden tener un gran potencial. (shrink)

This paper aims to state the obvious – the commonsense, rational approach to child-producing. We have no general obligation to promote either the “general happiness” or the equalization of this and that. We have children if we want them, if their life prospects are decent – and if we can afford them, which is a considerable part of their life prospects being OK – and provided that in doing so we do not inflict injury on others. It’s extremely difficult to (...) do this latter, but affording them, in rich countries, is another matter. With that qualification, by and large people should just go ahead and have (or not have) children – as many as they think they want and can handle – as it suits them. (shrink)

The purpose of this paper is to propose and consider a new constitutional provision that can contribute to the protection of the vital needs of future generations. The proposal I wish to elaborate can be termed the posterity provision, and it has both substantive and procedural elements. The aim of this constitutional provision is twofold. The first is to encourage state authorities to make more future‐oriented deliberations and decisions. The second is to create more public awareness and improve the process (...) of public deliberation about issues affecting near and remote future generations. It is argued that a good case can be made for the proposed reforms compared with alternative substantive constitutional environmental provisions found in existing constitutions and in the literature on legal and political theory. The main reason for this is that the proposed law constitutes a better and more adequate basis for judicial enforcement than the alternatives, which tend to be very vague or unclear. In this connection, I contend that there are both epistemological and moral reasons for introducing constitutional provisions that focus on the protection of critical natural resources essential for meeting the basic physiological needs of future people. It is also argued that the posterity provision can be defended on the basis of central ideas and ideals in recent theory of deliberative democracy. (shrink)

Two related asymmetries have been discussed in relation to the ethics of creating new lives: First, we seem to have strong moral reason to avoid creating lives that are not worth living, but no moral reason to create lives that are worth living. Second, we seem to have strong moral reason to improve the wellbeing of existing lives, but, again, no moral reason to create lives that are worth living. Both asymmetries have proven very difficult to account for in any (...) coherent moral framework. I propose an impersonal population axiology to underpin the asymmetries, which sidesteps the problematic issue of whether or not people can be harmed or benefited by creation or non-creation. This axiology yields perfect asymmetry from a deliberative perspective, in terms of expected value. The axiology also yields substantial asymmetry for large and realistic populations in terms of their actual value, beyond deliberative relevance. (shrink)