The environmental crisis challenges the adequacy of traditional moral theories, particularly in the case of act consequentialism – the view that an act is morally right if and only if it brings about the best available outcome. Although anthropogenic climate change threatens the well-being of billions of humans and trillions of non-human animals, it is difficult for an act consequentialist to condemn actions that contribute to it, as each individual action makes no difference to the probability of whether climate change (...) will occur. Or so one argument goes. This chapter examines the limits and possibilities of a consequentialist approach to climate ethics. It discusses various types of consequentialist theories applicable to the current environmental situation. It outlines outcome-based strategies to address the no-difference problem and to promote individual climate action. Finally, it considers environmental cases of evaluative uncertainty and how a consequentialist could deal with them. (shrink)

The biosphere represents the global sum of all ecosystems. According to a prominent view in environmental ethics, ecocentrism, these ecosystems matter for their own sake, and not only because they contribute to human ends. As such, some ecocentrists are critical of the modern industrial civilization, and a few even argue that an irreversible collapse of the modern industrial civilization would be a good thing. However, taking a longer view and considering the eventual destruction of the biosphere by astronomical processes, we (...) argue that humans, a species with considerable technological know-how and industrial capacity could intervene to extend the lifespan of Earth’s biosphere, perhaps by several billion years. We argue that human civilization, despite its flaws and harmful impacts on many ecosystems, is the biosphere’s best hope of avoiding premature destruction. We argue that proponents of ecocentrism, even those who wholly disregard anthropocentric values, have a strong moral reason preserve the modern industrial civilization, for as long as needed to ensure biosphere survival. (shrink)

The focus of this chapter is public policy and consequentialism, especially issues that arise in connection with the environment – i.e. the natural world, including non-human animals. We integrate some of the existing literature on environmental economics, welfare economics, and policy with the literature on environmental values and philosophy. The emphasis on environmental policy is motivated by the fact that it is arguably the most philosophically interesting and challenging application of consequentialism to policy, as it includes all the challenges of (...) valuing the distribution of human wealth and power, and has the further challenge of putting these consequences on the same scale as consequences for human health, non-human animals, and nature. We suggest that standard methods of (economic) policy analysis provide a good approximation of correct welfarist analysis, except that they must be supplemented with methods for valuing animal wellbeing and tradeoffs with human wellbeing. We then provide the needed methods. (shrink)