Academic disciplines have a critical role to play in higher education's response to the planetary challenges of the 21st century. Many academics have embraced the call for a fundamental reorientation of higher education around the goal of education for sustainable development. Individual faculty members who prioritize such a pedagogical goal, however, may find themselves caught between claims of social responsibility on the one hand and traditional norms of their disciplines on the other. This predicament, I suggest, does not require resolution of theoretical debates over interdisciplinarity, but does require concrete practical action on the part of academics for institutional change in the disciplines. I highlight strategies currently being adopted by academic disciplinary associations to advance the mission of the UN Decade on Education for Sustainable Development.