In exceptional<br>circumstances (either because c<br>ef < cact or because Ef < Abstr), one could<br>calculate a negative load, which has to be neglected for water footprint accounts<br>(so one should account for a zero water footprint in such a case). Te positive<br>contribution made to the environment in the exceptional case of a ‘negative load’<br>is to be appreciated but should not be counted in the water footprint accounts, in<br>order to separate the discussion of possible water footprint compensation from<br>existing positive water footprints.
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