The United Nations Conference on Environment and Development (UNCED), held in Rio de Janeiro in 1992, is popularly known as the Earth Summit. One of the key outcomes of this summit was the adoption of Agenda 21. Agenda 21 is a comprehensive, non-binding action plan of the United Nations, the multilateral system, and other global organizations with regard to sustainable development. It is a product of the Earth Summit and outlines actions to be taken globally, nationally, and locally by organizations of the UN, governments, and major groups in every area where human impacts on the environment.