The GeoUnions (GUs) is a network of representatives of the international scientific unions of the International Science Council (ISC) dealing with Earth and space sciences. The GUs established a Steering Committee in 2004 (in Paris, France) to promote the sciences worldwide, to communicate and to coordinates scientific activities of individual unions, and to speak on behalf of GUs members to ISC Governing Board, ISC Members and its interdisciplinary bodies and at international level, especially to the United Nations organizations and other global stakeholders. The current Members of the GUs are:

The Steering Committee of GUs meets normally a day before of the ISC General Assemblies and Scientific Unions Meetings of ISC. The GeoUnions Procedures can be found here