The calls for action are numerous: at the United Nations Rio+20 Conference on Sustainable Development in September 2012, governments reaffirmed the fundamental right of everyone to be free from hunger. The same year, the UN Secretary General launched the “Zero Hunger Challenge” campaign to end hunger globally. The United Nations 2030 Agenda for Sustainable Development, endorsed in September 2015, confirms the importance of achieving food security, and eradicating hunger is the second Sustainable Development Goal (SDG 2). Since 1990, much progress has been made in reducing hunger.