This article introduces Sustainability Frontiers, a newly formed, international, not-for-profit alliance of sustainability and global educators dedicated to challenging and laying bare the assumptions, exposing the blind spots, and transgressing the boundaries of mainstream understandings of sustainability-related education. Among the orthodoxies it challenges are the myth of unending progress built on economic growth, the notion of human separateness from nature, and the predominant knee-jerk over-reliance on policy, technical, and market solutions to global problems. Its members are committed to envisioning, theorising, researching, and putting into practice sustainability learning that seeks transformation and healing of the human condition through a repaired and restored earth connection. This article presents seven key themes that are being addressed by Sustainability Frontiers (the range of themes being subject to periodic review): (1) Climate change education; (2) Emergency education; (3) The education for sustainability--education for all interface; (4) Widening the scope of sustainability education; (5) Biocentric education; (6) Bioregional education; and (7) A multidimensional epistemology for sustainability education.