https://www.unwater.org/publications/progress-change-water-use-efficiency-2024-update
Progress on Change in Water-Use Efficiency – 2024 Update | UN-Water
Dec 15, 2025 - Target 6.4 is: “By 2030, substantially increase water-use efficiency across all sectors and ensure sustainable withdrawals and supply of freshwater to address...
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https://www.unwater.org/our-work/sdg-6-integrated-monitoring-initiative/indicator-641-change-water-use-efficiency-over-time
Indicator 6.4.1 “Change in water use efficiency over time” | UN-Water
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