Discussed is the recycling of agricultural residues, either through fermentation or bioconversion processes, to help meet the energy requirements of the developing countries. (BT)

Reviewed, in this editorial, are the present world energy situation and estimates of the prospects of supplying mankind with the amount of energy necessary for future socioeconomic development. Stressed is the role of different energy sources in the present and future energy balance of the world. (BT)

Discussed are the potential application of solar energy and its possible benefits to developing countries. Various energy needs, including domestic, agricultural, and household, that could be met by using solar energy are discussed. (BT)

Discusses how biomass in the form of fuelwood, crop residues, and animal dung can be converted into fuels such as biogas and ethanol to replace or supplement fossil fuels. Argues for future decentralized, integrated biomass energy development. (TW)