Sustainable development and water At the United Nations Conference on Environment and Development, held in 1992 in Rio de Janeiro, a plan was adopted to achieve sustainable development in the 21st century.
Trajnostni razvoj in voda Leta 1992 je bil na konferenci Združenih narodov o okolju in razvoju v Riu de Janeiru sprejet načrt za doseganje trajnostnega razvoja v 21. stoletju.