The first edition of Life and Death Matters was a breakthrough text, centralizing the experiences of those on the front lines of environmental crises and forging new paradigms for understanding how crises emerge and how different groups of actors respond to them. This second edition, fully updated with both expanded and new chapters, once again provides a benchmark for the field and opens important pathways for further research. Authors reassess the state of scholarship and grassroots activism in a new century when social and environmental systems are being reconceptualised within post-9/11 security and biosecurity frameworks, when global warming and resource scarcity are not fears but realities, when global power and politics are being realigned, and when ecocide, ethnocide, and genocide are daily tragedies. This bold new edition of Life and Death Matters will be a widely used textbook and essential reading for students, scholars, and policy makers.