Environmental education is an increasingly important concern for policymakers and universities, as it is critical to the success of the broader agenda represented by the 2015 Sustainable Development Goals. Achieving this within the higher education sector has proven difficult, however. This article examines how an interdisciplinary, extra-curricular course on the justice implications of climate change, delivered as part of University College London's Global Citizenship Programme, combined a range of practical and theoretical methodologies to deliver environmental education and the related concept of education for global citizenship. Evidence indicates that courses such as this could be a powerful means of overcoming the shortcomings in mainstream higher education and equipping students with the skills necessary for them to assist society, at global, national and subnational levels, in transitioning towards more sustainable behaviours.