It is already clear that climate engineering raises numerous troubling ethical issues. The pertinent question yet to be addressed is how the ethical issues raised by climate engineering compare to those raised by alternative proposals for tackling climate change. This volume is the first to put the ethical issues raised by climate engineering into a comprehensive, comparative context so that the key ethical challenges of these technologies can be better measured against those of alternative climate policies . Addressing the topic specifically through the lens of justice, contributors include both advocates of climate intervention research and its sceptics. The volume includes a helpful blend of the theoretical and the practical, with contributions from authors in philosophy, engineering, public policy, social science, geography, sustainable development studies, economics, and climate studies. This cross-disciplinary collection provides the start of an important and more contextualized "second generation" analysis of climate engineering and the difficult public policy decisions that lie ahead.