The Sahara and Sahel Observatory (OSS) is an international (intergovernmental) organization with an African vocation, created in 1992 and established in Tunis (Tunisia) since 2000. Its action is in arid, semi-arid and dry sub-humid areas. of the Sahelo-Saharan region.
The OSS has among its members 22 African countries, 5 non-African countries, 4 sub-regional organizations representing West, East and North Africa and one non-governmental organization.
OSS works with its member countries and organizations in subsidiarity and complementarity. It acts as an initiator and facilitator of partnerships around common challenges related to the management of shared water resources and the implementation of Multilateral Environmental Agreements, in particular those relating to desertification, biodiversity and climate change. climatic.