STELLA is an EU co-funded KA2 Erasmus+ project that empowers young people and youth organizations to tackle climate change by using sport as a tool for environmental education.To deepen the understanding of the intersection between sport and environmental sustainability, we engaged with a diverse group of stakeholders — including sportspersons, academics, environmental experts, and policymakers. Through these insightful interviews, we explore different perspectives, experiences, and ideas that can inspire young people to take action. These conversations highlight the vital role sport can play in promoting environmental awareness and offer valuable guidance for youth-driven sustainability efforts.