Description: The Alliance for Sustainable Schools (TASS) is a non-profit network of schools working together to accelerate the transition to a sustainable future. TASS is a vibrant community of practice for sustainability in schools, bringing together sustainability practitioners, students, and school leaders in schools all around the world to share best practise and tackle the most important sustainability challenges all schools face. TASS is also an influential agent of change. By harnessing the collective influence of its members, engaging with their students and partnering with innovate local organisations, it is catalysing systems change in five key areas – school buses, school food, school buildings and school uniforms. Anthony will present TASS’s approach and share case studies that illustrate the impact this approach is having.