(k) It is hoped that the relaxing of military tensions in Europe will provide conditions for expanded expenditures in waste cleanups and investment in sustainable development. (1) Governments and non-governmental agencies should increase their efforts to act as "green consumers" by seeking to purchase more recycling and environmentally friendly products in the market place. (m) ECE Governments and non-governmental organizations should agree to maintain and expand support for studies into the science and economics of global change and environmental sustainability. SUSTAINABLE ENERGY USE 7, The World Commission on Environment and Development conc1uded that energy conservation and increased use of renewable energy is the only viable way forward. A low energy path would help conserve the traditional fuels needed for the developing countries. However, these countries should be assisted gradually to use new technologies and renewable energies as a substitute for traditional ones. To quote the WCED report: "A safe, environmentally sound, and economically viable energy pathway that will sustain human progress into the distant future is clearly imperative. It is also possible." The WCED report concluded: "Within the next 50 years, nations have the opportunity to produce the same levels of energy services with as little as half the primary supply currently consumed," I• • • A/CONF.151/PC/10 English Page 36 (a) Energy efficiency and conservation must lie at the heart of a sustainab le energy strategy. ~11 sectors of society are encouraged to play their part in developing and using energy efficient, environmentally sound techniques and management practices, and in strengthening programmes for energy conservation. Taking into account that substantial savings can be achieved in the residential and commercial sectors, high energy efficiency standards of buildings, including energy utilizing equipment and systems should be achieved by public and private entitie s alike. (b) The United Nations ECE should be invited to prepare an Environmental 
**Analysis**
The text primarily discusses the importance of sustainable development, energy conservation, and environmental sustainability, with a focus on reducing waste and increasing the use of renewable energy sources. It also mentions the need for governments and organizations to support studies on global change and environmental sustainability. The text's emphasis on economic viability and the potential for energy savings suggests that economic development is a key consideration.

**Category**
Natural resources and environment, Economic development