Normalisation

Normalisation is an impact assessment step that can be used on its own to provide the relative contribution of impact categories to an overall reference system, usually a region of total world emissions. Normalisation is required before the weighting of impact categories so that the weighting of categories is undertaken against the total impacts for a region (for example, to determine the relative importance of all carcinogenic effects to all resource depletions.) Normalisation data for Australia are very scarce for most non-greenhouse related data. For normalisation across Europe, many of the missing data are proportioned either based on GDP or energy consumption from Dutch data. A similar approach could be used where required for Australian normalisation.

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