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jordens bylys data courtesy marc imhoff of nasa gsfc and christopher elvidge of noaa ngdc. image by craig mayhew and robert simmon, nasa gsfc.
earth's city lights data courtesy marc imhoff of nasa gsfc and christopher elvidge of noaa ngdc. image by craig mayhew and robert simmon, nasa gsfc.
metodens validitet anerkendes nu bredt (se de konklusioner, som et ekspertpanel bestående af fremtrædende økonomer har draget. panelet blev for nylig nedsat af us national oceanic and atmospheric administration, noaa), og retningslinjer for metodens anven delse er blevet opstillet.
in such comprehensive willingness-to-pay (wtp) studies, individuals would be asked how much they would be willing to pay in order to no longer be the victim of a certain level of externality (e.g. traffic noise).
