It is sometimes claimed that as members of the species Homo sapiens we have a responsibility to promote the good of Homo sapiens itself (distinct from the good of its individual members). Lawrence Johnson has recently defended this claim as part of his approach to resolving the problem of future generations. We show that there are several difficulties with Johnson's argument, many of which are likely to attend any attempt to establish the moral considerability of Homo sapiens or species generally. (...) Further, even if Homo sapiens were morally considerable, this would not ground an adequate response to the problem of future generations. The sort of moral considerability that would be appropriate to Homo sapiens, or species generally, would not be as robust nor have the implications that many have supposed. (shrink)

This article addresses the implications of rapid and uncertain ecological change, and global climate change in particular, for reserve oriented and restoration oriented ecosystem management. I argue for the following conclusions: (1) rapid and uncertain ecological change undermines traditional justifications for reserve oriented and restoration oriented ecosystem management strategies; (2) it requires rethinking ecosystem management goals, not just developing novel strategies (such as assisted colonization) to accomplish traditional goals; (3) species preservation ought to be deemphasized as an ecosystem management goal; (...) (4) reserve oriented ecosystem management remains well justified, but the goals for it must be revised. (shrink)

I offer myself as a nature guide, exploring for values. Many before us have got lost and we must look the world over. The unexamined life is not worth living; life in an unexamined world is not worthy living either. We miss too much of value.

I offer myself as a nature guide, exploring for values. Many before us have got lost and we must look the world over. The unexamined life is not worth living; life in an unexamined world is not worthy living either. We miss too much of value.

Some species face extinction if they are unable to keep pace with climate change. Yet proposals to assist threatened species’ poleward or uphill migration (‘assisted migration’) have caused significant controversy among conservationists, not least because assisted migration seems to threaten some values, even as it protects others. To date, however, analysis of ethical and value questions about assisted migration has largely remained abstract, removed from the ultimately pragmatic decision about whether or not to move a particular species. This paper uses (...) the case study of the whitebark pine, a keystone species of sub-alpine habitats in western North America, to consider how particular cases of assisted migration may be ethically approached. After taking into account the value of species, wildness, place, ecosystems, culture and sentient animals, we conclude that, on balance, there appear to be good reasons to move the whitebark pine. (shrink)

Recent critics (Andrew Light, Bryan Norton, Anthony Weston, and Bruce Morito, among others) have argued that we should give up talk of intrinsic value in general and that of nature in particular. While earlier theorists might have overestimated the importance of intrinsic value, these recent critics underestimate its importance. Claims about a thing’s intrinsic value are claims about the distinctive way in which we have reason to care about that thing. If we understand intrinsic value in this manner, we can (...) capture the core claims that environmentalists want to make about nature while avoiding the worries raised by contemporary critics. Since the distinction between intrinsic and extrinsic value plays a critical role in our understanding of the different ways that we do and should care about things, moral psychology, ethical theory in general, and environmental ethics in particular shouldn’t give up on the concept of intrinsic value. (shrink)

Recently two developments have had a major impact on the field of ancient DNA (aDNA). First, new advances in DNA sequencing, in combination with improved capture/enrichment methods, have resulted in the recovery of orders of magnitude more DNA sequence data from ancient animals. Second, there has been an increase in the range of tissue types employed in aDNA. Hair in particular has proven to be very successful as a source of DNA because of its low levels of contamination and high (...) level of ancient endogenous DNA. These developments have resulted in significant advances in our understanding of recently extinct animals: namely their evolutionary relationships, physiology, and even behaviour. Hair has been used to recover the first complete ancient nuclear genome, that of the extinct woolly mammoth, which then facilitated the expression and functional analysis of haemoglobins. Finally, we speculate on the consequences of these developments for the possibility of recreating extinct animals. (shrink)

Existence Value has become an increasingly important concept as the use of cost benefit analysis has spread from traditional applications to attempts to place monetary value on, for instance, a rare wetland habitat. Environmental economists have generally accepted the tensions arising in the existence value concept from the range of recent applications, but it is argued here that their various attempts to resolve the difficulties have largely failed. Critics from outside economics, on the other hand, typically claim that the very (...) notion of existence value as understood in economics is flawed, and urge its abandonment altogether. This paper suggests instead a fundamental redefinition of existence value, which, it is argued, (i) explains a number of diverse problems posed by the usual meaning of the term in economics; (ii) does not strain the intentions of respondents to ' willingness-to-pay' surveys; (iii) is consistent with a more realistic model of rational choice in environmental decision-making; and (iv) is sensitive to criticisms from environmental ethics.2. (shrink)

We live in a world confronted by mounting environmental problems; increasing global deforestation and desertification, loss of species diversity, pollution and global warming. In everyday life people mourn the loss of valued landscapes and urban spaces. Underlying these problems are conflicting priorities and values. Yet dominant approaches to policy-making seem ill-equipped to capture the various ways in which the environment matters to us. Environmental Values introduces readers to these issues by presenting, and then challenging, two dominant approaches to environmental decision-making, (...) one from environmental economics, the other from environmental philosophy. The authors present a sustained case for questioning the underlying ethical theories of both of these traditions. They defend a pluralistic alternative rooted in the rich everyday relations of humans to the environments they inhabit, providing a path for integrating human needs with environmental protection through an understanding of the narrative and history of particular places. The book examines the implications of this approach for policy issues such as biodiversity conservation and sustainability. Written in a clear and accessible style for an interdisciplinary audience, this volume will be ideal for student use in environmental courses in geography, economics, philosophy, politics and sociology. (shrink)

Discourse around assisted colonization focuses on the ecological risks, costs, and uncertainties associated with the practice, as well as on its technical feasibility and alternative approaches to it. Nevertheless, the ethical underpinnings of the case for assisted colonization are claims about the value of species. A complete discussion of assisted colonization needs to include assessment of these claims. For each type of value that species are thought to possess it is necessary to determine whether it is plausible that species possess (...) the type of value and, if so, to what extent their possessing it justifies assisted colonization. I conducted such an assessment for each of the predominant types of value ascribed to species: ecological, instrumental (including option value), existence, and intrinsic value (including interest‐based, objective, and valuer‐dependent intrinsic value). The vast majority of species, including several that have been proposed as candidates for assisted colonization, have much less value than is often presumed. Moreover, with respect to some types of value, assisted colonization would not fully preserve the value of the target species even if it were to keep the target species in existence. Therefore, the case for assisted colonization is significantly weaker and more qualified than its advocates often suppose. There may be exceptional species for which assisted colonization is well justified—and for this reason, case‐by‐case assessment is necessary—but in general the burden of justification generated by the ecological risks associated with assisted colonization is not met by the value potentially preserved by assisted colonization. This suggests that assisted colonization ought to have, at most, a very minor role in the portfolio of ecosystem management practices, even as it pertains to species conservation under conditions of rapid climate change. (shrink)