In particular the monitoring of sites involves the following levels of analysis: > mapping of production sites in potential water scarcity areas, in which the aver age value of renewable water resources per head is lower than the reference val ue set by the FAO, and identified also through use of specific software developed by the World Business Council for Sustainable Development; > identification of “critical” production sites, i.e. which use fresh water; > more efficient management through changes to plant or processes aimed at max imizing the supply from effluents and sea water; > monitoring of the climate and vegetation data for each site.