However far we are from either in practice, basic global and intergenerational justice, including climate change mitigation, are taken to be theoretically compatible. If population grows as predicted, this could cease to be the case. This paper asks whether that tragic legacy can now be averted without hard or even tragic choices on population policy. Current generations must navigate between: a high-stakes gamble on undeveloped technology; violating human rights; demanding unbearable sacrifices of the already badly off; institutional unfairness across adults; (...) institutional unfairness across children; failing to protect children’s basic interests; and threatening the autonomy of the family. We are not yet forced to choose between bequeathing a tragic choice and making one, by adopting basically unjust measures. However, even the remaining options present a morally hard choice. The fact we face it is yet another damning indictment on the combined actions and collective failures of the global elite. (shrink)

However far we are from either in practice, basic global and intergenerational justice, including climate change mitigation, are taken to be theoretically compatible. If population grows as predicted, this could cease to be the case. This paper asks whether that tragic legacy can now be averted without hard or even tragic choices on population policy. Current generations must navigate between: a high-stakes gamble on undeveloped technology; violating human rights; demanding unbearable sacrifices of the already badly off; institutional unfairness across adults; (...) institutional unfairness across children; failing to protect children’s basic interests; and threatening the autonomy of the family. We are not yet forced to choose between bequeathing a tragic choice and making one, by adopting basically unjust measures. However, even the remaining options present a morally hard choice. The fact we face it is yet another damning indictment on the combined actions and collective failures of the global elite. (shrink)

Individual decisions about how to exercise the legal right to procreative liberty may generate either positive or negative externalities. From within a resource egalitarian perspective, such as that of Ronald Dworkin, it can be argued that procreative justice is asymmetric in the following respect. Justice need not require that parents be subsidised if they produce a public good, yet its ideal achievement may require their activities be taxed if they threaten to produce a public bad.

Peter Singer has argued that the affluent have very extensive duties to the world’s poor. His argument has some important implications for procreation, most of which have not yet been acknowledged. These implications are explicated in this paper. First, the rich should desist from procreation and instead divert to the poor those resources that would have been used to rear the children that would otherwise have been produced. Second, the poor should desist from procreation because doing so can prevent the (...) very bad things that would otherwise have befallen the children they would have brought into existence. Third, the rich sometimes have a duty to prevent the poor from procreating. Fourth, the rich sometimes have a right to prevent the poor from reproducing. Although these implications may not amount to a categorical prohibition on all procreation, they do significantly restrict the permissibility of procreation. They are, in that sense, anti-natalist. (shrink)

This fully updated and expanded textbook looks at issues including climate change, sustainable development and biodiversity preservation, and sensitively addresses global developments such as the Summits at Durban on climate and at Nagoya on biodiversity.

I argue it is inconsistent to believe that overconsumption is wrong or bad yet believe that having children is morally permissible, insofar as they produce comparable environmental impacts, are voluntary choices, and arise from similar desires. This presents a dilemma for "mainstream environmentalists": they do not want to abandon either of those fundamental beliefs, yet must give up one of them. I present an analogical argument supporting that conclusion. After examining four attempts to undermine the analogy, I conclude that none (...) of them successfully locates a significant, relevant difference between procreation and eco-gluttony (roughly, consumption exceeding that of the average American). Thus, in order to be consistent, one must be in favour of both or opposed to both. Mainstream environmentalism, then, is not an option, and should be replaced by radical environmentalism, the view that both overconsumption and (in most cases) having children are morally problematic in an overcrowded world. (shrink)

I formulate and defend a theory of special procreative duties in the context of a liberal egalitarian theory of justice. I argue that (1) the only special duty that procreators owe their offspring is that of ensuring that their life prospects are non-negative (worth living), and (2) the only special duty that procreators owe others is that of ensuring that they are not disadvantaged by the procreators’ offspring (a) violating their rights or (b) adversely affecting their equality rights and duties.

Several climate ethicists have recently argued that having children is morally equivalent to over-consumption, and contributes greatly to parents’ personal carbon footprints. We show that these claims are mistaken, for two reasons. First, including procreation in parents’ carbon footprints double-counts children’s consumption emissions, once towards their own, and once towards their parents’ footprints. We show that such double-counting defeats the chief purpose of the concept of carbon footprint, namely to measure the sustainability and equitability of one’s activities and choices. Furthermore, (...) we show that proposals to avoid double-counting have other unacceptable implications. Second, we show that the key arguments for a supposed moral equivalence of procreation and consumption overgenerate and lead to unacceptable consequences in many cases, such as for the work of doctors who save lives or enable procreation. Finally, we propose that rather than counting children’s emissions towards their parents’ carbon footprints, we should consider these emissions as part of the parents’ carbon impact, i.e. the difference that their choices make to the overall global carbon emissions. It is from the perspective of impact that we should think about the ethics of procreation in an age of climate change. (shrink)

Egalitarian theories assume, without defending it, the view that the costs of children should be shared between non-parents and parents. This standard position is called into question by the Parental Provision view. Drawing on the familiar idea that people should be held responsible for the consequences of their choices, the Parental Provision view holds that under certain conditions egalitarian justice requires parents to pay for the full costs of their children, as it would be unfair for non-parents to bear the (...) negative externalities of others’ choices to have children. This article examines closely the Parental Provision view and argues that various possible justifications for it are unsuccessful. In so doing, it brings to light respects in which the choice to have and rear children is special and may not be treated as being on a par with other choices for which we think people should be held responsible. (shrink)

I shall briefly evaluate the common claim that ethically acceptable population policies must let individuals to decide freely on the number of their children. I shall ask, first, what exactly is the relation between population policies that we find intuitively appealing, on the one hand, and population policies that maximize procreative freedom, on the other, and second, what is the relation between population policies that we tend to reject on moral grounds, on the one hand, and population policies that use (...) coercive methods such as laws or economic incentives and deterrents, on the other. I shall argue that when changing a population policy, it may be morally desirable to affect people's procreative decisions more rather than less, and that sometimes it may be morally desirable to prefer a population policy that does not maximize procreative freedom to a population policy that does maximize it. I shall also point out that indirect population policies that use incentives and deterrents are not necessarily incompatible with liberal principles. Finally, I try to show what is assumed by those who defend the view that coercive population policies are morally wrong in all circumstances. (shrink)

Contrary to political and philosophical consensus, we argue that the threats posed by climate change justify population engineering, the intentional manipulation of the size and structure of human populations. Specifically, we defend three types of policies aimed at reducing fertility rates: choice enhancement, preference adjustment, and incentivization. While few object to the first type of policy, the latter two are generally rejected because of their potential for coercion or morally objectionable manipulation. We argue that forms of each policy type are (...) pragmatically and morally justified tools for preventing the harms of global climate change. (shrink)

Environmental ethicists have not reached a consensus about whether or not individuals who contribute to climate change have a moral obligation to reduce their personal greenhouse gas emissions. In this paper, I side with those who think that such individuals do have such an obligation by appealing to the concept of integrity. I argue that adopting a political commitment to work toward a collective solution to climate change—a commitment we all ought to share—requires also adopting a personal commitment to reduce (...) one’s emissions. On these grounds, individuals who contribute to climate change have a prima facie moral duty to lower their personal greenhouse gas emissions. After presenting this argument and supporting each of its premises, I defend it from two major lines of objection: skepticism about integrity’s status as a virtue and concerns that the resulting moral duty would be too demanding to be morally required. I then consider the role that an appeal to integrity could play in galvanizing the American public to take personal and political action regarding climate change. (shrink)

At the end of a thoughtful article on the future of nuclear war, Wiesner and York concluded that: "Both sides in the arms race are... confronted by the dilemma of steadily increasing military power and steadily decreasing national security. It is our considered professional judgment that this dilemma has no technical solution. If the great powers continue to look for solutions in the area of science and technology only, the result will be to worsen the situation.".

It is often claimed that reducing population size would be advantageous for climate change mitigation, on the grounds that lower population would naturally correspond to lower emissions. This apparently obvious claim is in fact seriously misleading. Reducing population size would indeed, other suitable things being equal, reduce the emissions rate. But it is well recognised that the primary determinant of the eventual amount of climate change is not the emissions rate, but rather cumulative emissions. It is far less clear whether (...) reducing population size would reduce cumulative emissions, or would in any other way prove an advantage for reasons related to climate change. This paper identifies and briefly discusses the issues relevant to assessing that less clear question. (shrink)

Wynes and Nicholas (2017) argue that the most effective action to reduce individual greenhouse gas (GHG) emissions is to have one fewer child. We raise methodological concerns about the way in which the authors attribute responsibility for emissions: they rely on multiple counting when calculating the emissions of future generations, and they exclude scenarios in which global emission trajectories become net-zero or negative. This may distort recommendations from policy makers and educators who rely on their study. We propose an alternative (...) way of attributing responsibility that avoids multiple counting. Investigating the implications of having children under this proposal with regards to the full range of different scenarios, including likelihood analyses, calls for further studies. (shrink)