... transfers of land to agriculture, soil ero-sion, the degradation of land by solidwastes, net groundwater extraction, waterpollution, and air pollution (15). Valuation of oil and timber is based on ... Degrad.Land Use Changes, Inputs for EDPContaminants, Demand for Fish as FoodIntensity of UseExtraction Rate(s)Extraction Rate(s)Extraction Rate(s)Emissions of CO2Apparent Consumption of CFCsEmissions ... Environ-mental Economics and Management: Princi-ples and Practice (Bellhaven Press, London,1993)."transparency" of the information system on which they rest.The construction and...