This study analyses the Montreal Protocol as a potential instrument and forum for the global governance of solar radiation management (SRM) research. It creates an analytical framework to examine the objectives, institutional capacity, and jurisdiction of the Montreal Protocol to determine the extent to which it can govern SRM research. The study also puts forth the latest science on the potential impacts of SRM and studies previous attempts at geoengineering governance under different international fora. It recommends certain principles of governance and international law that must underline any proposed framework. Further, it introduces the possibility of an overarching global institution for the complete governance of geoengineering.