The 1972 Stockholm Conference on Human Environment Principle 2 states that; The natural resources of the earth, including the air, water, land, flora and fauna and especially representative samples of natural ecosystems, must be safeguarded for the benefit of present and future generations through careful planning or management, as appropriate. The 1992 Rio Declaration Principle 3 states that; The right to development must be fulfilled so as to equitably meet developmental and environmental needs of present and future generations.