Abstract

Modern life is full of examples of environmentally-mediated “group harms” – what Derek Parfit describes as harms produced by “what we all do together.” Typically, the harms are unintended and arise from the uncoordinated actions of many individuals. Their actions ordinarily are not inherently wrong, no one’s action causes harm to an identifiable individual, and prevention of the expected harm is unlikely unless all, or nearly everyone, reduce or cease to engage in activities that collectively and cumulatively result in harm. Unless the individual’s action is likely to make a difference to the outcome, it is often argued that it is not clear what, if anything, makes it wrong or a breach of personal moral responsibility. Activities that result in climate change and agricultural practices commonly employed within the global system of food production are prominent examples. There are several well-known strategies for dealing with such cases, but often they rest on idealized assumptions regarding the impact that one individual can have, provide answers suitable only in counterfactual circumstances, or rely on the kinds of principles of justice that make it difficult to identify clearly and address directly many important moral problems. The task of this chapter is to examine these strategies and propose alternative freestanding practical principles that can guide our efforts to address the world as we find it and explain the sense of wrongness individuals often experience.