RESUMO Em geral, podemos encontrar na literatura (tanto na popular quanto na acadêmica) atribuições de deveres coletivos complexos a coletivos não estruturados extensos de indivíduos. Por “deveres coletivos complexos”, quero dizer deveres coletivos que, de maneira plausível, exigem que os membros individuais de um coletivo não estruturado extenso empreguem tipos diferentes de ações contributivas para alcançarem um objetivo coletivo - por exemplo, o suposto dever coletivo universal de acabar com a pobreza mundial. Neste artigo, defendo que esses deveres não orientam (...) a ação. O motivo é por que eles não passam no que chamo de “teste de orientação de ação”. Esse teste pressupõe a crença intuitiva de que um dever moral orienta a ação apenas se, para o portador do dever, estiver claro o tipo de ação que ele deve praticar após a atribuição do dever. Deveres coletivos complexos atribuídos a coletivos não estruturados extensos não passam nesse teste porque, embora cada portador do dever (ou seja, cada membro do coletivo) receba orientação sobre o fim que se deve atingir em conjunto, não está claro para esses agentes o tipo de ação que cada um deles deve por em prática. (shrink)

What are the main conditions that any theory of human rights should satisfy to guide action? If agents must take action for a fairer world as human rights discourse suggests, this is a crucial question to reflect upon. In this paper, I make a proposal. I argue that any theory of (moral) human rights that guides action on the basis of correlative duties must satisfy three key conditions. The first condition is focused on the specification of act-types, the second concerns (...) the distribution of correlative duties, and the third is focused on the resolution of (resolvable) conflicts of human rights. I show that this proposal has substantive implications because it implies to reject, challenge and, in some cases, resist ideas that are commonly accepted in the literature on human rights. (shrink)

There are countless circumstances under which random individuals COULD act together to prevent something morally bad from happening or to remedy a morally bad situation. But when OUGHT individuals to act together in order to bring about a morally important outcome? Building on Philip Pettit’s and David Schweikard’s account of joint action, I will put forward the notion of joint duties: duties to perform an action together that individuals in so-called random or unstructured groups can jointly hold. I will show (...) how this account of joint duties is preferable to one which defends individual duties to cooperate. I then discuss the limits of joint duties and the ways in which one can fail to comply with them. It will become apparent that the circumstances under which individuals in random collectives acquire such joint duties are rare. (shrink)

Our moral obligations can sometimes be collective in nature: They can jointly attach to two or more agents in that neither agent has that obligation on their own, but they – in some sense – share it or have it in common. In order for two or more agents to jointly hold an obligation to address some joint necessity problem they must have joint ability to address that problem. Joint ability is highly context-dependent and particularly sensitive to shared (or even (...) common) beliefs. As such, joint ability can be deliberately generated in a given collection of agents by providing information related to collective goals and contributory actions. As moral agents, we regularly face problems wherein the outcome of our actions depends on how others choose. There are two ways of deliberating about our own choices in such cases. We can either think of our choices as best responses to others’ choices (I-mode reasoning). Or we can think of our own choices as contributions to the collectively best option (even when we do not know how others are (likely) to choose) (we-mode reasoning). In deliberating about the right (individual) course of action vis-à-vis collective action problems, agents regularly we-frame the case at hand, that is, they include options in their deliberation that are only collectively available, and they we-reason with regard to their individual contributory actions. It is a necessary condition for collective obligations that potential collaborators facing a joint necessity case have grounds to privilege we-reasoning over reasoning in I-mode. (shrink)

It is sometimes argued that non-agent collectives, including what one might call the ‘global collective’ consisting of the world’s population taken as a whole, cannot be the bearers of non-distributive moral obligations on pain of violating the principle that ‘ought implies can’. I argue that one prominent line of argument for this conclusion fails because it illicitly relies on a formulation of the ‘ought implies can’ principle which is inapt for contexts which allow for the possibility of non-distributive plural predications (...) of agency, which are precisely the contexts in which we might expect non-agents to be obligation-bearers. (shrink)

Thomas Pogge has argued, famously, that ‘we’ are violating the rights of the global poor insofar as we uphold an unjust international order which provides a legal and economic framework within which individuals and groups can and do deprive such individuals of their lives, liberty and property. I argue here that Pogge’s claim that we are violating a negative duty can only be made good on the basis of a substantive theory of collective action; and that it can only provide (...) substantive ethical guidance when combined with an account of how collective action gives rise to forward-looking responsibility and/or accountability on an individual level. I consider accounts of these two topics given in work by Peter French and Christopher Kutz; and I argue that neither of them give Pogge what he needs. Although there is a sense in which 'we' can be said to be violating the rights of the worst off, the sense in which this is true does not generate any plausible action-guiding claims for individuals. (shrink)

The use of artificial intelligence (AI) to make high-stakes decisions is sometimes thought to create a troubling responsibility gap – that is, a situation where nobody can be held morally responsible for the outcomes that are brought about. However, philosophers and practitioners have recently claimed that, even though no individual can be held morally responsible, groups of individuals might be. Consequently, they think, we have less to fear from the use of AI than might appear to be the case. This (...) paper assesses this claim. Drawing on existing philosophical models of collective responsibility, I consider whether changing focus from the individual to the collective level can help us identify a locus of responsibility in a greater range of cases of AI deployment. I find that appeal to collective responsibility will be of limited use in filling the responsibility gap: the models considered either do not apply to the case at hand or else the relevant sort of collective responsibility, even if present, will not be sufficient to remove the costs that are often associated with an absence of responsibility. (shrink)

In Group Duties, Stephanie Collins proposes a ‘tripartite’ social ontology of groups as obligation-bearers. Producing a unified theory of group obligations that reflects our messy social reality is challenging and this ‘three-sizes-fit-all’ approach promises clarity but does not always keep that promise. I suggest considering the epistemic level as primary in determining collective obligations, allowing for more fluidity than the proposed tripartite ontology of collectives, coalitions and combinations.

BackgroundPatient advocacy organizations (PAOs) have an increasing influence on health policy and biomedical research, therefore, questions about the specific character of their responsibility arise: Can PAOs bear moral responsibility and, if so, to whom are they responsible, for what and on which normative basis? Although the concept of responsibility in healthcare is strongly discussed, PAOs particularly have rarely been systematically analyzed as morally responsible agents. The aim of the current paper is to analyze the character of PAOs’ responsibility to provide (...) guidance to themselves and to other stakeholders in healthcare.MethodsResponsibility is presented as a concept with four reference points: (1) The subject, (2) the object, (3) the addressee and (4) the underlying normative standard. This four-point relationship is applied to PAOs and the dimensions of collectivity and prospectivity are analyzed in each reference point.ResultsUnderstood as collectives, PAOs are, in principle, capable of intentionality and able to act and, thus, fulfill one prerequisite for the attribution of moral responsibility. Given their common mission to represent those affected, PAOs can be seen as responsible for patients’ representation and advocacy, primarily towards a certain group but secondarily in a broader social context. Various legal and political statements and the bioethical principles of justice, beneficence and empowerment can be used as a normative basis for attributing responsibility to PAOs.ConclusionsThe understanding of responsibility as a four-point relation incorporating collective and forward-looking dimensions helps one to understand the PAOs’ roles and responsibilities better. The analysis, thus, provides a basis for the debate about PAOs’ contribution and cooperation in the healthcare sector. (shrink)

What are the main conditions that any theory of human rights should satisfy to guide action? If agents must take action for a fairer world as human rights discourse suggests, this is a crucial question to reflect upon. In this paper, I make a proposal. I argue that any theory of (moral) human rights that guides action on the basis of correlative duties must satisfy three key conditions. The first condition is focused on the specification of act-types, the second concerns (...) the distribution of correlative duties, and the third is focused on the resolution of (resolvable) conflicts of human rights. I show that this proposal has substantive implications because it implies to reject, challenge and, in some cases, resist ideas that are commonly accepted in the literature on human rights. (shrink)

Journal of Social Philosophy, EarlyView.

Many corporations are large, powerful, and wealthy. There are massive shortfalls of global justice, with hundreds of millions of people in the world living below the threshold of extreme poverty, and billions more living not far above that threshold. Where injustice and needs shortfalls must be remediated, we often look towards agents’ capabilities to determine who ought to bear the costs of rectifying the situation. The combination of these three claims grounds what I call a ‘linkage-based’ account of why corporations (...) have demanding positive duties to the global poor. In this paper, I put forward a distinctive linkage-based account of corporations’ positive duties centred on the idea of dependence and the importance of meeting agents’ core needs. In addition to outlining and defending this account, I will show that we can utilise its basic conceptual components to make headway on questions that have received insufficient attention in the business ethics literature; specifically, we can say something substantive about the weighting of needy agents’ competing claims to assistance, and about the limits to the demands that can be lodged against corporations on the basis of others' unmet needs. Having integrated considerations of duties' grounding, their comparative weight, and the limits of their demandingness into a single account of corporate positive duty, I conclude by discussing a challenge to attributing to corporations duties owed to the worst-off amongst the global poor. (shrink)

Some harms are such that they cannot be prevented by a single individual because she lacks the requisite control. Because of this, no individual has the obligation to do so. It may be, however, that the harm can be prevented when several individuals combine their efforts. I argue that in many such situations each individual has a duty to join forces: to approach others, convince them to contribute, and subsequently make a coordinated effort to prevent the harm. A distinctive feature (...) of this proposal is that, in the first instance, it focuses on mobilizing others rather than on preventing the outcome. As it ultimately concerns a collective harm, the duty to join forces is irreducibly collective. Furthermore, once enough people have been mobilized, they have a collective obligation to prevent the harm that is irreducibly collective also because it applies to the collective as such. (shrink)

We argue that individuals who have access to vaccines and for whom vaccination is not medically contraindicated have a moral obligation to contribute to the realisation of herd immunity by being vaccinated. Contrary to what some have claimed, we argue that this individual moral obligation exists in spite of the fact that each individual vaccination does not significantly affect vaccination coverage rates and therefore does not significantly contribute to herd immunity. Establishing the existence of a moral obligation to be vaccinated (...) despite the negligible contribution each vaccination can make to the realisation of herd immunity is important because such moral obligation would strengthen the justification for coercive vaccination policies. We show that two types of arguments—namely a utilitarian argument based on Parfit’s Principle of Group Beneficence and a contractualist argument—can ground an individual moral obligation to be vaccinated, in spite of the imperceptible contribution that any single vaccination makes to vaccine coverage rates. We add a further argument for a moral obligation to be vaccinated that does not require embracing problematic comprehensive moral theories such as utilitarianism or contractualism. The argument is based on a “duty of easy rescue” applied to collectives, which grounds a collective moral obligation to realise herd immunity, and on a principle of fairness in the distribution of the burdens that must be borne to realise herd immunity. (shrink)

Discussion of epistemic responsibility typically focuses on belief formation and actions leading to it. Similarly, accounts of collective epistemic responsibility have addressed the issue of collective belief formation and associated actions. However, there has been little discussion of collective responsibility for preventing epistemic harms, particularly those preventable only by the collective action of an unorganized group. We propose an account of collective epistemic responsibility which fills this gap. Building on Hindriks' (2019) account of collective moral responsibility, we introduce the Epistemic (...) Duty to Join Forces. Our theory provides an account of the responsibilities of scientists to prevent epistemic harms during inquiry. (shrink)

Some of the most invidious injustices are seemingly the results of impersonal workings of rigged social structures. Who bears responsibility for the injustices perpetrated through them? Iris Marion...

When we think about ethics, we normally focus on a particular sort of agent: the individual person. Some philosophers have argued that we should rethink the limits of what counts as an ethically relevant unit of agency by expanding outward, and claiming that groups of people can have normative reasons for action. In this paper, I explore whether we can go in the other direction. Are there sub‐personal beings who count as agents with their own reasons for action? In particular, (...) might the temporal parts of persons, beings like “me‐in‐my‐twenties,” be thought of as normative agents? This idea, I argue, has deep attractions, and deep, but surmountable, challenges. And if we do accept this idea, I argue, this can indirectly help to support the case for thinking that groups can have reasons for action. (shrink)

There is good reason to think that moral responsibility as accountability is tied to the violation of moral demands. This lends intuitive support to Type-Symmetry in the collective realm: A type of responsibility entails the violation or unfulfillment of the same type of all-things-considered duty. For example, collective responsibility necessarily entails the violation of a collective duty. But Type-Symmetry is false. In this paper I argue that a non-agential group can be collectively responsible without thereby violating a collective duty. To (...) show this I distinguish between four types of responsibility and duty in collective contexts: corporate, distributed, collective, shared. I set out two cases: one involves a non-reductive collective action that constitutes irreducible wrongdoing, the other involves a non-divisible consequence. I show that the violation of individual or shared duties both can lead to irreducible wrongdoing for which only the group is responsible. Finally, I explain why this conclusion does not upset any work on individual responsibility. (shrink)

According to some collectivists, purposive groups that lack decision-making procedures such as riot mobs, friends walking together, or the pro-life lobby can be morally responsible and have moral duties. I focus on plural subject- and we-mode-collectivism. I argue that purposive groups do not qualify as duty-bearers even if they qualify as agents on either view. To qualify as a duty-bearer, an agent must be morally competent. I develop the Update Argument. An agent is morally competent only if the agent has (...) sufficient positive and negative control over updating their goal-seeking states. Positive control involves the general ability to update one’s goal-seeking states, whereas negative control involves the absence of other agents with the capacity to arbitrarily interfere with updating one’s goal-seeking states. I argue that even if purposive groups qualify as plural subjects or we-mode group agents, these groups necessarily lack negative control over updating their goal-seeking states. This creates a cut-off point for groups as duty-bearers: Organized groups may qualify as duty-bearers, whereas purposive groups cannot qualify as duty-bearers. (shrink)

A standard objection to socioeconomic human rights is that they are not claimable as human rights: their correlative duties are not owed to each human, independently of specific institutional arrangements, in an enforceable manner. I consider recent responses to this ‘claimability objection,’ and argue that none succeeds. There are no human rights to socioeconomic goods. But all is not lost: there are, I suggest, human rights to ‘socioeconomic consideration’. I propose a detailed structure for these rights and their correlative duties, (...) while remaining neutral on substantive moral debates. I argue that socioeconomic-consideration human rights are satisfactorily claimable and sufficiently practical. (shrink)

This is a response to the critial comments by Anne Schwenkenbecher, Olle Blomberg, Bill Wringe and Gunnar Björnsson.

Individuals have various kinds of obligations: keep promises, don’t cause harm, return benefits received from injustices, be partial to loved ones, help the needy and so on. How does this work for group agents? There are two questions here. The first is whether groups can bear the same kinds of obligations as individuals. The second is whether groups’ pro tanto obligations plug into what they all-things-considered ought to do to the same degree that individuals’ pro tanto obligations plug into what (...) they all-things-considered ought to do. We argue for parity on both counts. (shrink)

Philosophers often talk as though each ability is held by exactly one agent. This paper begins by arguing that abilities can be held by groups of agents, where the group is not an agent. I provide a new argument for—and a new analysis of—non-agentive groups’ abilities. I then provide a new argument that, surprisingly, obligations are different: non-agentive groups cannot bear obligations, at least not if those groups are large-scale such as ‘humanity’ or ‘carbon emitters.’ This pair of conclusions is (...) important, since philosophers who endorse large-scale non-agentive groups’ abilities almost universally endorse their obligations. More importantly, the twin arguments (one for abilities, one against obligations) make the following novel contribution: abilities imply agency-involving explanations, while obligations imply action-guidance. This general conclusion should be of interest beyond social ontology. (shrink)

Philosophers often talk as though each ability is held by exactly one agent. This paper begins by arguing that abilities can be held by groups of agents, where the group is not an agent. I provide a new argument for—and a new analysis of—non-agentive groups’ abilities. I then provide a new argument that, surprisingly, obligations are different: non-agentive groups cannot bear obligations, at least not if those groups are large-scale such as ‘humanity’ or ‘carbon emitters.’ This pair of conclusions is (...) important, since philosophers who endorse large-scale non-agentive groups’ abilities almost universally endorse their obligations. More importantly, the twin arguments (one for abilities, one against obligations) make the following novel contribution: abilities imply agency-involving explanations, while obligations imply action-guidance. This general conclusion should be of interest beyond social ontology. (shrink)

Knowledge-how often appears to be more difficult to transmit by testimony than knowledge-that and knowledge-wh. Some philosophers have argued that this difference provides us with an important objection to intellectualism—the view that knowledge-how is a species of knowledge-that. This article defends intellectualism against these testimony-based objections.

In ordinary discourse, a single duty is often attributed to a plurality of agents. In "Group Duties: Their Existence and Their Implications for Individuals", Stephanie Collins claims that such attributions involve a “category error”. I critically discuss Collins’ argument for this claim and argue that there is a substantive sense in which non-agential groups can have moral duties. A plurality of agents can have a single duty to bring about an outcome by virtue of a capacity of each to practically (...) reason about what they ought to do together. I also argue that Collins’ attempt to give a reductive account of such “we-reasoning” fails. (shrink)

It has been suggested that understanding our obligations to address large-scale moral problems such as global poverty and the threat of severe climate change as fundamentally collective can allow us to insist that a great deal must be done about these problems while denying that there are very demanding obligations, applying to either individuals or collectives, to contribute to addressing them. I argue that this strategy for limiting demandingness fails because those who endorse collective obligations to address large-scale moral problems (...) have no grounds for denying that the relevant collectives are obligated to do what is impartially best. Specifically, I argue that appeals to the claim that collective obligations to do what is impartially best would be objectionably demanding cannot succeed, for two reasons. The first is that demandingness complaints cannot be aggregated across the individual members of a collective. And the second is that demandingness complaints cannot plausibly be asserted on behalf of collectives themselves. I conclude by suggesting some reasons to think that collective obligations to address large-scale problems will tend to imply demanding individual obligations. (shrink)

In recent years, collective agency and responsibility have received a great deal of attention. One exciting development concerns whether collective, non-distributive responsibility can be assigned to collective non-agents, such as crowds and nation-states. I focus on an underappreciated aspect of these arguments—namely, that they sometimes derive substantive ontological conclusions about the nature of collective agents from these responsibility attributions. I argue that this order of inference, whose form I represent in what I call the Spaghetti Western Argument, largely fails, even (...) if the cases described are all too common. I show that it does not generate a generalizable, reliable conclusion about the kind of entity that is the plausibly responsible party. In particular, a group may lack agency in a given instance, be non-distributively responsible in that same instance and yet be a collective agent across time. (shrink)

This paper explores the implications of Zeynep Tufekci’s capacities approach to social movements, which explains the strength of social movements in terms of their capacities. Tufekci emphasises that the capacities of contemporary social movements largely depend upon their uses of new digital technologies, and of social media in particular. We show that Tufekci’s approach has important implications for the structure of social movements, whether and what obligations they can have, and for how these obligations distribute to their members. In exploring (...) these implications, we develop a tripartite taxonomy of social movements. Each type of social movement in the taxonomy corresponds to a different type of group: social campaigns, social struggles, and social agitations. We show that all three types of social movement can bear obligations in virtue of their capacities. Finally, we argue that a surprising upshot of the obligations of social movements is that members of oppressed groups can have obligations to resist their own oppression in virtue of being members of social movements. (shrink)

The topic of my thesis is individual and collective responsibility for collectively caused systemic harms, with climate change as the case study. Can an individual be responsible for these harms, and if so, how? Furthermore, what does it mean to say that a collective is responsible? A related question, and the second main theme, is how ignorance and knowledge affect our responsibility. -/- My aim is to show that despite the various complexities involved, an individual can have responsibility to address (...) climate change. I argue that climate change is not a problem just for states and international bodies, but also for individuals. There are three possible sources of moral responsibility for individuals in relation to climate change harms: direct responsibility (individuals qua individuals), shared responsibility as members (individuals qua members of collective agents), and shared responsibility as constituents (individuals qua constituents of unorganised collectives). -/- Accounts that deny individual responsibility fail to either take our interdependent reality seriously or fail to understand marginal participation (or in the case direct responsibility, fail to appreciate the nature of the climate change phenomenon). Individuals can be complicit in climate change harms, either as members of collective agents (e.g. as citizens of states or employees of a corporation) or as constituents of unorganised collectives (e.g. as consumers or polluters). -/- Although I focus on individual complicity, I do not deny the obligations of collective agents. However, nation-states, governments, and international bodies are not the only relevant collective agents in climate ethics: other collective agents, such as corporations, matter also and can have obligations concerning making sure that their activities are as carbon-neutral as possible. In addition, those corporations that have engaged in lobbying against climate regulation through creating and disseminating misleading information have acquired themselves additional obligations to mitigate climate change and compensate for the harm they have caused. Even so, the ethical claims can only be understood by individual members of these collective agents because only they can feel the pull of moral claims. I suggest that we could distinguish between what one must possess in order to be capable of making moral claims (i.e. moral agency conditions), and what it means to have the ability to exhibit such claims through one’s conduct. -/- Individual direct responsibility is to not to increase the probable risk of serious harm to other people, at least as long as we can do so at a less than significant cost to ourselves. It is limited to relatively wealthy individuals. Offsetting is not a reliable way to meet this duty; we need to look at the emissions from our lifestyle choices (within the available infrastructure). Shared responsibility qua members of collective agents is the key individual responsibility, and it presses especially on those occupying key positions within key collective agents. Saying that, our shared responsibility qua constituents of unorganised collectives has the potential to be decisive in whether some action is taken or not, either through a set of actions that can signal certain acceptance or support, or as a form of political support from the grass roots. (shrink)

Problems in normative ethics paradigmatically concern what it is obligatory or permissible for an individual to do. Yet sometimes, each of us ought to do something individually in virtue of what we ought to do together. Unfortunately, traversing these two different levels at which a moral obligation can arise – individual and collective – is fraught with difficulties that easily lure us into conclusions muddying our understanding of collective obligations. This paper seeks to clearly lay out a systematic problem central (...) to the relation between collective and individual duties in view of alleviating some such confusion and facilitating more concerted attempts at resolving it: Collective duties require individuals to act in order for the collective duty to be fulfilled. Yet typically, a collective duty does not entail any one set of individual duties that would prescribe such contributory actions: The work we need to do in order to fulfil a duty can be allocated differently to the individuals collectively bearing it. Much like in matters of distributive justice, then, deriving individual duties from a collective one requires us to employ a distributive scheme, which raises separate normative concerns that have rarely taken centre stage in the debate so far. (shrink)

Group-based reasons are reasons to play one’s part in some pattern of action that the members of some group could perform, because of the good features of the pattern. This paper discusses three broad conceptions of such reasons. According to the agency-first conception, there are no group-based reasons in cases where the relevant group is not or would not be itself an agent. According to the behaviour-first conception, what matters is that the other members of the group would play their (...) parts in the relevant pattern, not whether they would have the cooperative intentional states constitutive of group agency in doing so. This paper argues against these conceptions and in favour of the powers-first conception, according to which what matters is that the members of the group have practically relevant powers. (shrink)

Jag argumenterar för att oorganiserade kollektiv, såsom kollektivet av alla människor, kan handla moraliskt rätt och fel. Storskaliga problem likt den globala uppvärmningen är till exempel resultatet av en sådan kollektiv handling, nämligen hela mänsklighetens utsläpp av växthusgaser. Denna kollektiva handling är dessutom moraliskt fel, på grund av dess dåliga konsekvenser. Jag bemöter också en invändning mot denna uppfattning om kollektivt handlande, enligt vilken det är intuitivt orimligt att oorganiserade kollektiv såsom ”hela mänskligheten” kan handla.

It is commonplace to attribute obligations to φ or blameworthiness for φ-ing to groups even when no member has an obligation to φ or is individually blameworthy for not φ-ing. Such non-distributive attributions can seem problematic in cases where the group is not a moral agent in its own right. In response, it has been argued both that non-agential groups can have the capabilities requisite to have obligations of their own, and that group obligations can be understood in terms of (...) moral demands on individual group members. It has also been suggested that members of groups can share responsibility for an outcome in virtue of being causally or socially connected to that outcome. This paper discusses the agency problem and argues that the most promising attempts at solutions understand group obligations and blameworthiness as grounded in demands on individual agents. (shrink)

We naturally attribute obligations to groups, and take such obligations to have consequences for the obligations of group members. The threat posed by anthropogenic climate change provides an urgent case. It seems that we, together, have an obligation to prevent climate catastrophe, and that we, as individuals, have an obligation to contribute. However, understood strictly, attributions of obligations to groups might seem illegitimate. On the one hand, the groups in question—the people alive today, say—are rarely fully-fledged moral agents, making it (...) unclear how they can be subjects of obligations. On the other, the attributions can rarely be understood distributively, as concerned with members’ obligations, because obligations to do something require a capacity to do it, and individual members often lack the relevant capacities. Moreover, even if groups can have obligations, it is unclear why that would be relevant for members, exactly because members often lack control over whether group obligations are fulfilled. In previous work, I have argued that a general understanding of individual obligations extends non-mysteriously to irreducibly shared obligations, rendering attributions of obligations to groups legitimate. In this paper, I spell out how the proposed account also helps us understand the relation between individual and shared obligations. Even though few individual human agents have any significant control over whether we will be successful in preventing climate catastrophe, our collective capacity to prevent catastrophe and shared preventative obligation to do so can give rise to significant individual obligations to contribute to its fulfillment. (shrink)