Source record
Aqueduct 4.0: Updated decision-relevant global water risk indicators
Samantha Kuzma, Marlena Chertock Bierkens, Liz Saccoccia, Tianyi Luo (2023). WRI Technical Note. World Resources Institute.
- Last reviewed
- Reviewer
- Editorial placeholder
- Status
- sample
Sample data. The figures and sources on this page are demonstration records showing how evidence will be presented. They are approximate and have not yet been through our review process. Read about how we will verify evidence.
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- Water footprints are only meaningful for scarcity once weighted by where the water was withdrawn.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.