The International Conference on Environmental Psychology: “Theories of change and social innovation in transitions towards sustainability” was held in A Coruña (Spain), August 30-31 and September 1, 2017. This international symposium was organized by the International Association of Applied Psychology, Division of Environmental Psychology, to promote the science and practice of applied psychology and to facilitate scientific exchange and communication on Environmental Psychology topics. Lisanne van Geffen has shared REFRESH’s recent insights on consumer-related food waste with this international community. The findings were well received, which indicates that insights on consumer-related food waste does not only benefit society as a whole, but also the scientific community in particular.