<P> Internationally, environmental education gained recognition when the UN Conference on the Human Environment held in Stockholm, Sweden, in 1972, declared environmental education must be used as a tool to address global environmental problems . The United Nations Education Scientific and Cultural Organization (UNESCO) and United Nations Environment Program (UNEP) created three major declarations that have guided the course of environmental education . </P> <P> June 5--16, 1972 - The Declaration of the United Nations Conference on the Human Environment . The document was made up of 7 proclamations and 26 principles "to inspire and guide the peoples of the world in the preservation and enhancement of the human environment ." </P> <P> October 13--22, 1975 - The Belgrade Charter was the outcome of the International Workshop on Environmental Education held in Belgrade, Jugoslavia (now Serbia). The Belgrade Charter was built upon the Stockholm Declaration and adds goals, objectives, and guiding principles of environmental education programs . It defines an audience for environmental education, which includes the general public . </P> <P> October 14--26, 1977 - The Tbilisi Declaration "noted the unanimous accord in the important role of environmental education in the preservation and improvement of the world's environment, as well as in the sound and balanced development of the world's communities ." The Tbilisi Declaration updated and clarified The Stockholm Declaration and The Belgrade Charter by including new goals, objectives, characteristics, and guiding principles of environmental education . </P>

Use of media and technology in environmental education in hindi