Environmentally sound technologies, as defined in Agenda 21 of the Rio Declaration, should protect the environment, are less polluting, use all resources in a more sustainable manner, recycle more of their wastes and products and handle residual wastes in a more acceptable manner than the technologies for which they were substitutes. They include a variety of cleaner production processes and pollution prevention technologies as well as end-of-pipe and monitoring technologies. Moreover, they include know-how, procedures, goods and services and equipment as well as organizational and managerial procedures. Where production processes that do not use resources efficiently generate residues and discharge wastes, environmentally sound technologies can be applied to reduce day-to-day operating inefficiencies, emissions of environmental contaminants, worker exposure to hazardous materials and risks of environmental
disasters.
The key benefits of environmentally friendly technologies include:
At the basic factory site or unit level, improving technology may be achieved by:
Strategic level approaches to improving technology include: