This strategy features in the framework of Agenda 21 as formulated at UNCED (Rio de Janeiro, 1992), now coordinated by the United Nations Commission on Sustainable Development and implemented through national and local authorities. Agenda 21 recommends: generating discussion at all levels on policy, development and environmental issues related to agricultural land use and management, through media programmes, conferences and seminars; encouraging people's participation on farm technology development and transfer, incorporating indigenous ecological knowledge and practices.