Consequentialism as an intergenerational ethic

Consequentialist morality is about making the world a better place—by promoting value and producing valuable outcomes. Consequentialist ethics competes with non-consequentialist alternatives where values are to be honored or instantiated rather than promoted and/or where morality is based on rules, virtues, or rights rather than values. Consequentialism’s main rivals in intergenerational ethics are contract-based theories. This chapter first argues that consequentialism has significant comparative advantages over its contract-based rivals, especially in relation to non-identity, the absence of reciprocity, and the need for flexibility and radical critique. These advantages outweigh the challenges facing any consequentialist intergenerational ethics—including cluelessness, counterintuitive demands, and puzzles of aggregation. The chapter then explores many varieties of contemporary consequentialism, arguing that the best consequentialist approach to intergenerational justice is agnostic, moderate, collective consequentialism. Different possible futures—including futures broken by climate change or transformed by new technologies—present new ethical challenges that consequentialism has the flexibility to address. Collective consequentialism can also resolve long-standing debates about the aggregation of well-being. The chapter ends by asking how consequentialist intergenerational ethics might evaluate threats of human extinction, incorporate the value of nonhuman nature, and motivate its potentially extreme demands.