In this paper, we argue that our moral concern for future well-being should reduce over time due to important practical considerations about how humans interact with spacetime. After surveying several of these considerations (around equality, special duties, existential contingency, and overlapping moral concern) we develop a set of core principles that can both explain their moral significance and highlight why this is inherently bound up with our relationship with spacetime. These relate to the equitable distribution of (1) moral concern in (...) a universe that we can only causally affect in one temporal direction; (2) access to the benefits from using spacetime as a resource; and (3) the burdens of care given (1) and (2). We conclude by considering the practical implications of our argument and find that, while it is often assumed that a preference for present over future well-being weakens the case for existential risk mitigation, this likely is not the case. (shrink)

Ideal carbon tax policy is internationally coordinated, fully internalizes externalities, redistributes revenues to those harmed, and is politically acceptable, generating predictable market signals. Since nonideal circumstances rarely allow all these conditions to be met, moral issues arise. This paper surveys some of the work in moral philosophy responding to several of these issues. First, it discusses the moral drivers for estimates of the social cost of carbon. Second, it explains how national self-interest can block climate action and suggests international policies—carbon (...) border tax adjustments and carbon clubs—that can help address these concerns. Third, it introduces some of the social science literature about the political acceptability of carbon taxes before addressing a couple common public concerns about carbon taxes. Finally, it introduces four carbon revenue usage options, arguing that redistributive and climate compensation measures are most morally justified. [Open access]. (shrink)

Climate justice demands polluters to take responsibility for both present and future harm caused by past GHG emissions and for future harm caused by future GHG emissions. One problem with this is double climate taxation: people living in historical polluting countries must both shoulder the burden of an effective and inclusive climate transition and repay the climate debt incurred by their predecessors. Although double climate taxation might be defensible on normative grounds, it risks making climate justice politically infeasible. I therefore (...) maintain that global climate justice should focus on future, rather than past, climate harms. The forward-looking polluter pays principle (FL-PPP) can ensure both a cost-effective climate transition and a fair distribution of the climate burden, provided it is applied as follows: i) each country must introduce a carbon price calibrated to the global social cost of carbon; ii) each country must transfer part of carbon revenues collected at the country level to an international fund; iii) global carbon revenues must be redistributed on the basis of the country-level social cost of carbon. The FL-PPP burden can be made more progressive, moreover, if the formula for allocating global carbon revenues is adjusted through two coefficients, one consumption-based and one priority-sensitive. (shrink)

Climate change can be construed as a question of collective responsibility from two different viewpoints: climate change being inherently a collective problem, or collective entities bearing responsibility for climate change. When discussing collective responsibility for climate change, “collective” can thus refer to the problem of climate change itself, or to the entity causing the harm and/or bearing responsibility for it. The first viewpoint focuses on how climate change is a harm that has been caused collectively. Collective action problem refers to (...) an aggregation of individual actions which together produce an outcome that is not intended at the level of an individual action. It cannot be solved by any one agent acting unilaterally. Instead, climate change action must be enacted and supported by numerous agents. The second way to conceptualize climate change as a question of collective responsibility focuses on the collective entities that bear responsibility for climate change. As a global problem, climate change is linked to the realm of international politics, where states, governments, and intergovernmental organizations are the main collective entities. Other important agential collectives in terms of climate responsibility are corporations, including carbon majors who have produced the bulk of emissions. Climate change has also been theorized as a structural injustice, which combines elements from both the viewpoints on what is collective about responsibility for climate change. (shrink)

One topic of growing interest in the debate on intergenerational justice is the duty to respect the freedom of future generations. One consideration in favor of such a duty is that the decisions of present generations will affect the range of decisions that will be available to future people. As a consequence, future generations’ freedom to direct their lives may be importantly restricted such that present generations can be seen as taking future people’s lives into their hands and disempowering them. (...) This article defends the idea that present generations have an obligation to sustain a certain threshold of freedom for members of present and future generations alike. It argues that we should regard sustainability policies as a way to redistribute freedom across members of different generations. It starts by explaining the centrality of social freedom to the way we conceive of moral persons, then explains how freedom can be understood as an object of redistribution. It then argues that by imposing some risks—such as that of resource depletion or destruction of the ecosystem—on future generations, present generations push future generations’ freedom below an acceptable threshold. The paper concludes with examples of how this focus on freedom can offer guidance in selecting and justifying sustainability policies—for example, measures for conserving biodiverse environments—even when it is not clear how they will directly contribute to the well-being of future persons. (shrink)

A uniform carbon tax with equal per capita dividends is usually advocated as a cost-effective way of reducing greenhouse gas (GHG) emissions without increasing, and in many cases even reducing, economic inequality, in particular because of the positive balance between the carbon taxes paid by the worse off and the carbon dividends they receive back. In this article, I argue that a uniform carbon tax reform is unjust regardless of how the revenue is used, because it does not discourage the (...) rich from indulging in wasteful emissions. This is at odds with a normative account of the distribution of the GHG budget that I define as emissions limitarianism, which is a climate derivative of economic limitarianism. Emissions limitarianism holds that, under low GHG budget conditions, emissions permits should not be used to achieve functionings that over-consume the GHG budget without producing significant welfare gains relative to the achievement of alternative functionings. Accordingly, I argue that a uniform carbon tax should be complemented by a limitarian carbon tax, which restricts the capabilities of the rich to achieve wasteful emission-generating functionings. The article adopts a methodological multi-level perspective on capabilities as a measure of welfare, distinguishing between basic, secondary and tertiary capabilities. (shrink)

We discuss how transgenerational communitarianism deals with public decisions involving tradeoffs between different generations’ wellbeing and having global consequences. Policies for tackling climate change are an example. Although there is a natural, evolutionary, basis for intergenerational altruism, most people lack the competencies for constituting a transgenerational community. Moreover, greater attention to future generations’ wellbeing need not substitute for collective action: a lower discount rate reflecting a stronger concern for future generations may even worsen their wellbeing. Finally, in a world of (...) irreducible value pluralism, there is no community of persons sharing moral values that can legitimize common policies for addressing global problems: only the common interest of avoiding destructive consequences may motivate collective action to face problems like climate change. (shrink)