The United Nations Food and Agriculture Organization (FAO) will elect a new director-general in June. The FAO is a central plank of the UN system. Its leader frames the thinking on food and agriculture globally and influences policy on almost any issue to do with what food we produce and eat. This week Ben and Agnes meet up with Tim Benton, Distinguished Visiting Fellow in the Energy, Environment and Resources Department at Chatham House, to discuss the future of the global food system. Tim explains the challenges involved in providing sufficient and sustainable food in a globalised world, and why the new director-general of the FAO will have such a pivotal role to play.  Read the Expert Comment: A Better UK Food Policy Requires Better Government