This eTwinning project, “Carbon Detectives” aims to raise students’ awareness of their environmental impact and promote sustainable habits to reduce carbon emissions. Partner schools from different countries will collaborate to explore what a carbon footprint is, calculate their own footprints, and share ideas for greener living. Through digital collaboration, creative tasks, and scientific research, students will learn how everyday choices influence the planet and how small changes can make a big difference. As a final product, an e-book will be created about the main components of the carbon footprint and how to reduce it.