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Solutions for water and air pollution challenges

he concept of sustainable use of earth’s resource is an ancient one. Without the principles of sustainability as a way of life, humans would not have survived in the 20th century. The principle of sustainable development received impetus with the adoption of Stockholm Declaration in 1972, World Conservation Strategy prepared in 1980 by the World Conservation Union (IUCN) with the advice and assistance of the United Nations Environment Programme (UNEP), World Charter for Nature of 1982, Report of the World Commission on Environment and Development under the chairmanship of Geo Harlem Brundtland (Brundtland Report), Our Common Future of 1987, the document Caring for the Earth; A Strategy for the Sustainable Living developed by the second world conservation project comprised of the representatives of the IUCN, UNEP and the Worldwide Fund for the Nature. The concept of sustainable development is the foundation stone of the Montreal Protocol for the Protection of Ozone Layer of 1987 and the instruments adopted at the UN Conference on Environment and Development (World Summit) held at Rio in 1992.