The case studies in this document reflect individual and institutional efforts to reorient curriculum, programs, practices, and policies to address sustainability at institutions of teacher education. The studies come from Africa, Asia, the Caribbean, Europe, and North America. The case studies deal with professional development for in-service teachers, curriculum revision at the pre-service level, research with students in a local school, greening of a building and its garden, creating a network of universities, starting a journal, and creating new undergraduate and graduate programs. The diversity of efforts is broad; the impact is deep. The dedication of teacher educators around the world is evident on every page of this document.