Toby Svoboda

According to the “Lesser of Two Evils Argument,” deployment of solar radiation management (SRM) geoengineering in a climate emergency would be morally justified because it likely would be the best option available. A prominent objection to this argument is that a climate emergency might constitute a genuine moral dilemma in which SRM would be impermissible even if it was the best option. However, while conceiving of a climate emergency as a moral dilemma accounts for some ethical concerns about SRM, it requires the controversial claim that there are genuine moral dilemmas, and it potentially undermines moral action guidance in emergency scenarios. Instead, it is better to conceive of climate emergencies as situations calling for agent-regret. This alternative allows us coherently to hold that SRM may be morally problematic even if it ought to be deployed in some scenario.

This book analyzes major ethical issues surrounding the use of climate engineering, particularly solar radiation management (SRM) techniques, which have the potential to reduce some risks of anthropogenic climate change but also carry their own risks of harm and injustice. The book argues that we should approach the ethics of climate engineering via "non-ideal theory," which investigates what justice requires given the fact that many parties have failed to comply with their duty to mitigate greenhouse gas emissions. Specifically, it argues that climate justice should be approached comparatively, evaluating the relative justice or injustice of feasible policies under conditions that are likely to hold within relevant timeframes. Likely near-future conditions include "pessimistic scenarios," in which no available option avoids serious ethical problems. The book contends that certain uses of SRM can be ethically defensible in some pessimistic scenarios. This is the first book devoted to the many ethical issues surrounding climate engineering.

According to indirect duty views, human beings lack direct moral duties to non-human organisms, but our direct duties to ourselves and other humans give rise to indirect duties regarding non-humans. On the orthodox interpretation of Kant’s account of indirect duties, one should abstain from treating organisms in ways that render one more likely to violate direct duties to humans. This indirect duty view is subject to several damaging objections, such as that it misidentifies the moral reasons we have to treat non-humans in certain ways and that it sanctions only weak obligations vis-à-vis organisms. I develop an alternative indirect duty view: given a direct duty to oneself to cultivate virtuous dispositions, one has an indirect duty to abstain from treating organisms in ways that erode one’s virtues or develop vices. I argue that this indirect duty view strictly proscribes knowingly causing unnecessary harm to organisms, and I show that it is not subject to the damaging objections directed against the indirect duty view attributed to Kant by the orthodox interpretation. This suggests that indirect duty views are more worthy of consideration than is often supposed.

Philosophers should consider a hybrid meta-ethical theory that includes elements of both moral expressivism and moral error theory. Proponents of such an expressivist-error theory hold that all moral utterances are either expressions of attitudes or expressions of false beliefs. Such a hybrid theory has two advantages over pure expressivism, because hybrid theorists can offer a more plausible account of the moral utterances that seem to be used to express beliefs, and hybrid theorists can provide a simpler solution to the Frege-Geach problem. The hybrid theory has three advantages over pure error theory, because hybrid theorists can offer a more plausible account of the moral utterances that seem to be used to express attitudes, hybrid theorists can more easily explain moral motivation, and hybrid theorists can avoid the implausible claim that all moral discourse is radically mistaken. Accordingly, such a hybrid theory should be more attractive than pure expressivism or pure error theory to philosophers who are skeptical about moral facts and truth.

Many philosophers have objected to Kant’s account of duties regarding non-human nature, arguing that it does not ground adequate moral concern for non-human natural entities. However, the traditional interpretation of Kant on this issue is mistaken, because it takes him to be arguing merely that humans should abstain from animal cruelty and wanton destruction of flora solely because such actions could make one more likely to violate one’s duties to human beings. Instead, I argue, Kant’s account of duties regarding nature grounds much stronger limitations on how humans may treat non-human animals and flora, since such duties are rooted in the imperfect duty to increase one’s own moral perfection. This duty proscribes actions affecting non-human nature that decrease one’s moral perfection, such as those that cause organisms unnecessary harm. Moreover, the duty to moral perfection prescribes (but does not strictly require) actions affecting non-human nature that increase one’s moral perfection, such as those that benefit organisms. Given this interpretation, I show that, contrary to a widely held view, Kant’s moral philosophy can ground a coherent and robust approach to environmental ethics.

Moral error theorists hold that morality is deeply mistaken, thus raising the question of whether and how moral judgments and utterances should continue to be employed. Proposals include simply abolishing morality, adopting some revisionary fictionalist stance toward morality, and conserving moral judgments and utterances unchanged. I defend a fourth proposal, namely revisionary moral expressivism, which recommends replacing cognitivist moral judgments and utterances with non-cognitivist ones. Given that non-cognitivist attitudes are not truth apt, revisionary expressivism does not involve moral error. Moreover, revisionary expressivism has the theoretical resources to retain many of the useful features of morality, such as moral motivation, moral disagreement, and moral reasoning. Revisionary expressivism fares better than the three major alternatives in both avoiding moral error and preserving these useful features of morality. I also show how this position differs from the “revolutionary expressivism” of Sebastian Köhler and Michael Ridge.

In this book, Toby Svoboda develops and defends a Kantian environmental virtue ethic, challenging the widely-held view that Kant's moral philosophy takes an instrumental view toward nature and animals and has little to offer environmental ethics. On the contrary, Svoboda posits that there is good moral reason to care about non-human organisms in their own right and to value their flourishing independently of human interests, since doing so is constitutive of certain virtues. Svoboda argues that Kant’s account of indirect duties regarding nature can ground a compelling environmental ethic: the Kantian duty to develop morally virtuous dispositions strictly proscribes unnecessarily harming organisms, and Svoboda argues that this duty compels us to act in ways that benefit non-human organisms, given that doing so can enhance one’s virtues. Svoboda’s argument engages the recent literature on environmental virtue and provides an original argument for an environmental virtue ethic firmly rooted in Kant’s moral philosophy