Although it could avoid some harmful effects of climate change, sulphate aerosol geoengineering (SAG), or injecting sulphate aerosols into the stratosphere in order to reflect incoming solar radiation, threatens substantial harm to humans and non-humans. I argue that SAG is prima facie ethically problematic from anthropocentric, animal liberationist, and biocentric perspectives. This might be taken to suggest that ethical evaluations of SAG can rely on Bryan Norton's convergence hypothesis, which predicts that anthropocentrists and non-anthropocentrists will agree to implement the same (...) or similar environmental policies. However, there are potential scenarios in which anthropocentrists and non-anthropocentrists would seem to diverge on whether a particular SAG policy ought to be implemented. This suggests that the convergence hypothesis should not be relied on in ethical evaluation of SAG. Instead, ethicists should consider the merits and deficiencies of both non-anthropocentric perspectives and the ethical evaluations of SAG such perspectives afford. (shrink)

Bryan Norton argues that my recent critique of anthropocentrism presupposes J. Baird Callicott's philosophically problematic distinction between intrinsic and instrumental value and that the problems that it raises for anthropocentrism in general are in fact only problems for strong anthropocentrism. I argue, first, that my own view does not presuppose Callicott's distinction, nor any claims about instrumental value, and second, that the problems it raises for anthropocentrism apply to weak and strong anthropocentrism alike.

This interdisciplinary volume consist of papers on various problems in contemporary ethics. It presents the following issues: equalizing the level of positive liberty, the phenomenon of human cooperation, ethical questions related to artificial intelligence, extending ethical obligations toward artifacts, and soteriological threads of alienation criticism of religion.

This paper enhances postnatural environmentalism (represented by Steven Vogel) by highlighting and incorporating selected concepts from Martin Heidegger's ontology. In particular, I examine Heidegger's detailed analysis of the affinity between phusis and techne, the critique of ‘replaceability’, the problem of ‘proper use’, and his earlier concept of a tool structure. This analysis is aimed at grounding the metaphysical and ethical significance of technical artefacts. It shows that Heidegger can support postnatural environmentalism's claim that artefacts should not be jettisoned by environmental (...) thinking because that leads to reckless treatment of them. Exploration of these issues also contributes to environmental interpretations of Heidegger's philosophical legacy, which were limited to natural beings. (shrink)

Ever since environmental ethics began to take form as an academic discipline in the early 1970s, the notion of intrinsic value has occupied a prominent position within the field. Recently, however, various types of critique have emerged within EE against invoking this notion. Contrary to these critiques, I argue that appeals to intrinsic value are not problematic, given the reason-implying sense of 'intrinsic value' that is most relevant to EE. I further argue that also those who criticise 'intrinsic-value-talk' in EE (...) actually need this reason-implying concept of intrinsic value. However, once we realise that this is the sense of 'intrinsic value' that is most relevant to EE, it also becomes clear that it is the concept of a reason, rather than that of intrinsic value, that is most important to EE. (shrink)

Cost-benefit analysis (CBA) evaluates actions in terms of negative consequences (costs) and positive consequences (benefits). Though much has been said on CBA, little attention has been paid to the types of values held by costs and benefits. This paper introduces a simple typology of values in CBA and applies it to three forms of CBA: the common, money-based CBA, CBA based in social welfare, and CBA based in intrinsic value. The latter extends CBA beyond its usual anthropocentric domain. Adequate handling (...) of value typology in CBA avoids analytical mistakes and connects CBA to its consequentialist roots. (shrink)