Recent advances in synthetic biology have made it possible to revive extinct species of animals, a process known as ‘de-extinction’. This paper examines two reasons for supporting de-extinction: the potential for de-extinct species to play useful roles in ecosystems; and human valuing of certain de-extinct species. I focus on the particular case of passenger pigeons to argue that the most critical challenge for de-extinction is that it entails significant suffering for sentient individual animals. I also provide reasons to take existence (...) value, or valuing the mere the fact that a species exists, into consideration in debates over de-extinction. (shrink)

One major question in climate justice is whether developed countries’ historical emissions are relevant to distributing the burdens of mitigating climate change. To argue that developed countries should bear a greater share of the burdens of mitigation because of their past emissions is to advocate ‘historical accountability.’ Standard arguments for historical accountability rely on corrective justice. These arguments face important objections. By using the notion of a global emissions budget, however, we can reframe the debate over historical accountability in terms (...) of distributive justice. This paper argues that, given two defensible assumptions, distributive justice requires historical accountability. These assumptions are that the proper claimants on the emissions budgets are societies or states, not individuals, and that we should be allocating the entirety of the original, pre-industrial budget, rather than just the remainder. (shrink)

“Resilience” is booming. No longer a mere metaphor or abstract reference to dispositional properties, the resilience of communities or social-ecological systems is increasingly grounded in specific first-order properties. Consequently, resilience now constitutes a contentful and achievable partial conception of a good society. Yet political philosophers have taken little notice. The current article first discerns within recent social-scientific literature a set of attainable and measurable first-order properties that constitute “community resilience” or “ecological resilience.” Then, specifying “resilience” as the resilience of high-HDI (...) democratic societies to environmental disasters, infrastructure failures, and economic collapse, the current article argues from within a liberal framework that both “classical” and “egalitarian” liberals must treat resilience so understood as a necessary condition of legitimacy and justice; and this conclusion forces an overhaul of these liber... (shrink)

Theories of intergenerational justice are a very common and popular way to conceptualise the obligations currently living people may have to future generations. After briefly pointing out that these theories presuppose certain views about the existence, number and identity of future people, I argue that the presuppositions must themselves be ethically investigated, and that theories of intergenerational justice lack the theoretical resources to be able to do this. On that basis, I claim it is necessary to do the ‘ethics of (...) metaphysics’ in order to fully comprehend what, if anything, we may owe future generations. I defend these claims against some important objections. (shrink)

A number of philosophers have resisted impersonal explanations of our obligation to mitigate climate change, and have developed accounts according to which these obligations are explained by human rights or harm-based considerations. In this paper I argue that several of these attempts to explain our mitigation obligations without appealing to impersonal factors fail, since they either cannot account for a plausibly robust obligation to mitigate, or have implausible implications in other cases. I conclude that despite the appeal of the motivations (...) for rejecting the appeal to impersonal factors, such factors must play a prominent role in explaining our mitigation obligations. (shrink)

While states have agreed to substantial reduction of emissions in the Paris Agreement, the success of the Agreement strongly depends on the cooperation of large Multinational Corporations. Short of legal obligations, we discuss the effectiveness and moral legitimacy of voluntary approaches based on naming and shaming. We argue that effectiveness and legitimacy are closely tied together; as voluntary approaches are the only alternative to legally imposed duties, they are most morally defensible particularly if they would be the most effective in (...) reducing the harmful greenhouse gases. Shaming could be made effective if states could prompt more corporations to accept voluntary cuts with high gains—such as public acknowledgements—and high losses, such as reporting on noncompliance and public exposure, along with some kind of condemnation. An important challenge of such voluntary approaches is how to ensure compliance with the agreed upon commitments, while avoiding greenwashing or selective disclosure. Certain institutional arrangements are inevitable, including an independent measurement, monitoring and verification mechanism. In this paper, we discuss the potentials and ethical pitfalls of shaming as a strategy when corporations have a direct relationship with consumers, but also when they are in a relationship with governments and other corporations. (shrink)