This volume of Managing Forest Ecosystems addresses the urgent challenge of managing temperate forests under accelerating climate change. It adopts a comparative, transhemispheric perspective by examining forest ecosystems in both the Southern and Northern Hemispheres, with a particular focus on the trans-Andean gradient in Northern Patagonian Nothofagus forests and Central European Fagus (beech) forests. Through an interdisciplinary and evidence-based approach, the volume examines ecological adaptations, species responses, and disturbance dynamics under accelerating global change. It emphasizes strategies for climate-adapted forestry, the integration of ecological and technological knowledge, and the importance of long-term monitoring and international collaboration. By linking scientific insights with global policy frameworks such as the UN 2030 Agenda and the Decade on Ecosystem Restoration, this book offers a foundation for nature-based solutions and knowledge transfer. It is an essential resource for researchers, practitioners, and policymakers in forestry, ecology, and environmental sciences, as well as graduate students seeking a comprehensive understanding of climate-adapted forest management.