The Climate Anxiety Handbook will be developed as a comprehensive collection of essential information, resources, and strategies to understand and identify climate anxiety in young individuals while providing effective support to manage and alleviate its impact. The handbook explores relevant terminology, the various emotions, and the physical experiences that climate anxiety can provoke. It also includes suggestions and practical exercises on how to support young people in moving from anxiety or other intense feelings toward coping, action, and joy. This resource is specifically tailored for professionals working with youth and youth workers who engage with young people affected by climate anxiety.