Agenda 21 indicates that necessary support implies:< (a) encouraging dissemination of existing environmentally sound technologies;< (b) developing and applying environmentally sound technology relevant to specific activities, [eg] less-polluting technology for forest utilization;< (c) promoting development and use of sources of energy which lessen pressure on ligneous resources, including alternative sources of energy and improved stoves;< (d) promoting national policies to provide incentives to local people for the use and transfer of environment-friendly technologies and farming and conservation practices;< (e) initiating and maintaining farm surveys, on-farm testing of appropriate technologies and dialogue with rural communities to identify constraints and bottlenecks and to find solutions.