Food production will need to significantly increase in order to feed the growing global population. However, the current mainly linear food production and consumption model has had significant deleterious effects on the environment, including land degradation, climate change, biodiversity loss, deforestation, chemical pollution, freshwater abstraction, and fresh and marine water pollution. This STAP paper presents solutions that can help improve the sustainability of current agri-food system in both the short and long terms. It highlights the role of a circular economy approach in tackling the problem and concludes with a set of advice to the Global Environment Facility on its possible role in improving the sustainability of current agri-food sector through its programmes and investments.