03 June 2015, Milan - All food systems are sustainable - The Biodiversity Park hosts the UN space dedicated to the third element of the Zero Hunger Challenge: All food systems are sustainable. Visiting it you can discover that every step of food systems has effects on the availability and access to diverse and nutritious food. The UN is present with 18 multimedia installations, easily recognizable by their giant blue spoons. These UN Spaces are located in various areas of the site along the itinerary dedicated to the theme "The Zero Hunger Challenge ?United for a sustainable world". You can join our challenge and make the UN itinerary interactive and educational by playing "Get to Zero", which is available for free for Android and iOS. Find the QRCode on the UN spaces to play, FAO Milano Expo.