eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater and substantially increasing recycling and safe reuse globally 6.4 Substantially increase water-use efficiency across all sectors and ensure sustainable withdrawals and supply of freshwater to address water scarcity and substantially reduce the number of people suffering from water scarcity 6.5 Implement integrated water resources management at all levels 6.6 By 2020, protect and restore water-related ecosystems, including mountains, forests, wetlands, rivers, aquifers and lakes Goal: In its position as one of the utilities with the best water productivity (water utilised/revenue), Iberdrola commits to maintaining this indicator 50 % below the European average for the sector in the coming 5 years.