Source record
Aqueduct 4.0: Updated decision-relevant global water risk indicators
Samantha Kuzma, Marc F. P. Bierkens, Shivani Lakshman, Tianyi Luo, Liz Saccoccia, Edwin H. Sutanudjaja, Rens van Beek (2023). WRI Technical Note. World Resources Institute.
Key findings
- Baseline water stress is scored 0–5 by basin and aggregated to countries; a quarter of the world's population lives in extremely high water-stress countries.
- Water footprints are only meaningful for scarcity once weighted by where the water was withdrawn.
Record
- Source type
- Dataset
- Study type
- Modelling
- Topics
- Water
- Geography
- Global, by country and river basin
- Funding & conflicts
- Not recorded.
- Source quality
- Moderate evidenceWidely used reference dataset; weighting of food water use is a modelling step with its own assumptions.
Limitations
- Country averages hide large differences between basins within a country.
- Scarcity-weighted food footprints depend on assumptions about where each food is grown.
Cite this record
Aqueduct 4.0: Updated decision-relevant global water risk indicators. The Balance of Health. https://thebalanceofhealth.com/sources/wri-aqueduct-water-risk-atlas-2023