This is the official webpage of UN-Water, containing information about freshwater, summaries on water-related UN projects, and links to UN water programs and departments. In 2003, UN-Water was endorsed as the new official United Nations mechanism for follow-up of the water-related decisions reached at the 2002 World Summit on Sustainable Development and the Millennium Development Goals. It will support Member States in their efforts to achieve water and sanitation goals and targets.

UN Water's work encompasses all aspects of freshwater, including surface and groundwater resources and the interface between fresh and sea water. It includes freshwater resources, both in terms of their quality and quantity, their development, assessment, management, monitoring and use (including, for example, domestic uses, agriculture and ecosystems requirements).

The scope of the work of UN-Water also includes sanitation - encompassing both access to and use of sanitation by populations and the interactions between sanitation and freshwater. It further includes water-related disasters, emergencies and other extreme events and their impact on human security. UN-Water acts at global, regional and country level. It adds value to the work and expertise of separate UN agencies and programs. It brings coherence and integration among them, and serves as the common voice of the UN system on water and sanitation. It will improve cooperation with external partners, and provide timely information on status and trends of the world's freshwater resources.

UN-Water is responsible for organizing the annual United Nations World Water Day (22 March) and the up-coming United Nations Decade on Water 2005 - 2015.