Understanding Ethics introduces the framework of moral philosophy to analyse contemporary moral issues and perennial human dilemmas. The book has been expanded from ten chapters to fourteen. A new chapter on War, Terrorism and Violence has been provided. In addition, Noel Preston has undertaken a complete revision, updating his work to reflect developments in bioethics (e.g. stell cem research, cloning, and genetic patents, genetically modified cropping, biodiversity, impact on developing countries), education and the workplace (e.g. ethics for teachers and schools, ethics of disciplinary processes), global issues (e.g. ethics of population and poverty, global governance and global citizenship), war, terrorism, and violence (e.g. capital punishment, war, including "just war theory, " and torture), the environment (e.g. Earth Charter and eco justice, animal rights, ethics, global warming, and energy policy), and sexuality (e.g. same sex marriage, human rights).