This encyclopaedia provides a comprehensive and interdisciplinary examination of droughts, famines, deserts, and desertification, addressing their causes, impacts, and management within a global framework. It explores how climatic variability, environmental degradation, and socio-economic vulnerability interact to produce prolonged water stress, food insecurity, and land degradation across different regions of the world. The book analyses historical and contemporary experiences to highlight patterns of risk, resilience, and response.

The discussion focuses on mitigation, preparedness, and management strategies, emphasising early warning systems, water governance, land-use planning, and sustainable livelihoods. Attention is given to the links between climate change, dryland ecosystems, forest resources, and human survival, alongside the cascading effects of drought on health, migration, and subsequent disasters. The book also considers policy responses, international cooperation, and humanitarian interventions aimed at reducing hunger and preventing future crises. By integrating environmental science, development studies, and resource management perspectives, this encyclopaedia offers a balanced and practical understanding of some of the most pressing global challenges. It is an essential reference for students, researchers, policymakers, and practitioners engaged in environmental management, disaster studies, and sustainable development.