Ministry of Foreign Affairs’ Department of Information chief Sek Wannamethee yesterday said Norachit Singhaseni, the Thai ambassador to the United Nations, had reported that the UN had decided on Friday to observe December 5 as World Soil Day. Following the 17th World Congress of Soil Science hosted in Bangkok in 2002, where some 60,000 members worldwide learned about the King’s soil development projects, the ministry had worked with the Agriculture Ministry to push for a World Soil Day and an International Year of Soils, he said.