ABSTRACT
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N INVESTMENTINTHEPRESENTREQUIREDTOPREVENTHARMINTHEFUTUREFROMSTOCKSOF RESIDUALSDEPOSITEDINTHEENVIRONMENTINTHEPASTSUCHASBURIEDTOXINSTHAT COULDCONTAMINATEGROUNDWATERIFUNTREATEDAND
N THECOSTOFRESTRICTINGTHEUSEOFRENEWABLENATURALRESOURCESTOTHELEVELATWHICH THEYWILLBEREPLACEDNATURALLY
)NPRACTICEITWOULDBEDIFlCULTTOKNOWWHATTHESEABATEMENTCOSTSWOULDREALLY BE)TWOULDREQUIREALEVELOFSCIENTIlCKNOWLEDGEABOUTCURRENTENVIRONMENTAL QUALITYANDPROCESSESTHATWEDONOTUSUALLYHAVEATOURDISPOSALWHENBUILDING ENVIRONMENTALACCOUNTS#ONSEQUENTLYCOUNTRIESHAVETYPICALLYESTIMATEDMAIN TENANCECOSTBASEDONHOWMUCHITWOULDCOSTTOREDUCEPOLLUTIONEITHERTOZEROOR TOSOMESTANDARDCONSIDEREDTOBEWITHINTHECARRYINGCAPACITYOFTHEENVIRONMENT 5SUALLYTHEYDONOTINCLUDETHEINCREASEDHARMTHATMIGHTBECAUSEDBYSTOCKSOF POLLUTANTALREADYINTHEENVIRONMENTBECAUSETHISISTOODIFlCULTTOMEASURE4HE COSTOFFURTHERPOLLUTIONREDUCTIONISESTIMATEDFOREACHINDUSTRYBASEDONKNOWL EDGEOFTHETECHNOLOGYTHATWOULDBEREQUIRED4HOSEVALUESARETHENSUMMEDTO ARRIVEATACOSTFORTHEECONOMYASAWHOLE -AINTENANCECOSTHASBEENESTIMATEDBYANUMBEROFCOUNTRIESTESTINGTHE
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