Global ethics addresses some of the most pressing ethical concerns today, including rogue states, torture, scarce resources, poverty, migration, consumption, global trade, medical tourism, and humanitarian intervention. It is both topical and important. How we resolve (or fail to resolve) the dilemmas of global ethics shapes how we understand ourselves, our relationships with each other and the social and political frameworks of governance now and into the future. This is seen most clearly in the case of climate change, where our actions now determine the environment our grandchildren will...