UN Secretary General Ban Ki-moon (centre) with Mr. Martínez, as the Secretary-General's wife, Yoo Soon-taek, looks on. Two of Peru's most-famous chefs, Gastón Acurio and Virgilio Martínez, were at the 2014 UN Climate Change Conference (COP20//CMP10) in Lima to give lessons in sustainable cooking to Secretary-General Ban Ki-moon, COP President Pulgar-Vidal and Christiana Figueres, Executive Secretary of the UN Framework Convention on Climate Change (UNFCCC). The chefs helped the three officials prepare vegetarian ceviche, using cleaner, wood-fired cook stoves and locally sourced ingredients. [Photo/UN]