Ramsar see Wetlands
RG Rio Group
S
SAARC South Asian Association for Regional Cooperation
SACU Southern African Customs Union
SADC Southern African Development Community
SADCC Southern African Development Coordination Conference; see Southern African Development Community (SADC)
SELA Sistema Economico Latinoamericana; see Latin American Economic
System (LAES)
SFRY Socialist Federal Republic of Yugoslavia; dissolved 5 December 1991
SHF super-high-frequency