21 . At the United Nations Conference on Sustainable Development in June 2012 , the IATF helped organize the side event titled , ` Re-greening for Resilient Landscapes : pastoralists and farmers stewarding ecosystems and economic returns in drylands ' . It was co-hosted by the Governments of Algeria and Niger , and organized in partnership with World Vision International , International Partners for Sustainable Agriculture ( IPSA ) /Citizens Network for Sustainable Development , Savory Institute ( SI ) , UNCCD and World Agroforestry Centre ( ICRAF ) .