This book challenges the dominant narrative of migration as the default response to climate change, introducing the concept of Environmental Non-Migration (ENM). It provides insights into why communities choose to remain in specific locations despite environmental risks and how staying can be an active adaptation strategy. It integrates theoretical frameworks, historical contexts, and global case studies, highlighting cognitive, cultural, and socio-economic influences on mobility decisions. By offering policy recommendations and real-world examples, the book equips researchers and policymakers with a new perspective on climate adaptation, fostering resilience, community empowerment, and sustainable development while preserving cultural heritage and strengthening local adaptation efforts. This book will be of interest to researchers, policymakers, and practitioners interested in climate adaptation, environmental studies, migration studies, development, urban planning, and those who are exploring resilience strategies, community-based adaptation, sustainability, and socio-environmental decision-making.