The successful governance of large-scale marine protected areas requires the implementation of complex multi-scale systems (international, national and local). Through his research, Dr Evan Hamman has advocated for a principled-approach to environmental governance highlighting the need for transparent, legitimate and inclusive decision-making. Dr Hamman’s PhD thesis sought to understand how multi-scale governance of the Great Barrier Reef operates, and, in turn, how it can be made more effective. In related work, Dr Hamman has examined regulatory arrangements relating to Queensland’s sugarcane industry, vegetation clearing, port development and access to justice. His research continues to explore the nexus between state and non-state actors, culture and nature, and the improved implementation of environmental law.