The document discusses challenges and opportunities for developing a sustainable global food system in the 21st century. It argues that while responses are emerging, change is not happening quickly or deeply enough. Barriers include complex policy landscapes, ideological challenges around prices and consumer choice, and fragmented food culture. Looking ahead, it suggests consumers will need to change diets and production methods, sharing lessons between regions and projects can help, and governments must use a range of policy tools to support new business models and cultural directions that prioritize health, environment and social needs.