This book offers a comprehensive and forward‑looking examination of how global warming is reshaping the world’s river deltas, among the most vulnerable yet vital landscapes on Earth. It provides critical insights into the environmental, social, and political challenges faced by deltaic regions as intensifying climate pressures converge on low‑lying coastal areas.The volume emphasizes the central importance of delta resilience for global climate adaptation and human security, particularly in the context of rising sea levels, extreme weather events, altered hydrological cycles, accelerated land loss, saltwater intrusion, biodiversity decline, and disruptions to food systems.It covers key thematic areas including deltaic geomorphology, sea‑level rise, salinization, land subsidence, food security, climate‑induced migration, urban infrastructure risk, and the role of traditional knowledge in adaptation. In‑depth case studies from major delta systems, such as the Mekong, Nile, Ganges‑Brahmaputra, and Mississippi, highlight both shared vulnerabilities and region‑specific dynamics. It also examines governance challenges, financing mechanisms, and international cooperation in managing transboundary river systems, while assessing nature‑based solutions, managed retreat, and emerging adaptation technologies. By bringing together expert perspectives and evidence‑based research, it fills critical knowledge gaps and offers a clear roadmap for policy and future action.The volume serves both as a scholarly contribution and a practical guide for policymakers, planners, environmental NGOs, climate professionals, and graduate students concerned with the future of deltaic environments under climate change.