Our Voice for the Environment” is an eTwinning project for students aged 8–14 from Sicily, Spain, Poland, Georgia, and the Czech Republic. Inspired by the story of Siso the whale, pupils explore environmental challenges through storytelling, science, creative recycling, data analysis, and local actions. The project promotes collaboration, sustainability, and the development of key Skills for Life. Its final product will be a Story jumper books with SISO story and local strories, showcasing students’ shared outcomes.