The Handbook on Climate Change and Human Security is a landmark publication which links the complexities of climate change to the wellbeing and resilience of human populations. It is written in an engaging and accessible way but also conveys the state of the art on both climate change research and work into human security, utilizing both disciplinary and interdisciplinary approaches. Organized around thematic sections, each chapter is written by an acknowledged expert in the field, and discusses the key concepts and evidence base for our current policy choices, and the dilemmas of international policy in the field. The Handbook is unique in containing sophisticated ethical and moral questions as well as new information and data from different geographical regions. It is a timely volume that makes the case for acting wisely now to avert impending crises and global environmental problems.