Aqueduct 3.0: Updated Decision-Relevant Global Water Risk Indicators

The document introduces Aqueduct 3.0, a framework that translates complex hydrological data into intuitive water-related risk indicators. It combines 13 indicators covering quantity, quality, and reputational risks into a composite score to help decision-makers identify high-risk regions or assets. The updated version features a new hydrological model with integrated supply and demand, surface and groundwater modeling, higher spatial resolution, and monthly time series data.

• Aqueduct 3.0 utilizes a composite index approach to combine 13 distinct water risk indicators—specifically addressing quantity, quality, and reputational risks—into a single overall water risk score.
• The framework incorporates a new hydrological model characterized by four primary improvements: integrated water supply and demand, combined surface and groundwater modeling, increased spatial resolution, and the use of a monthly time series for selected indicators.
• Because key elements like overall water risk cannot be directly measured or validated, the tool is intended for prioritization and should be supplemented with local and regional detailed analyses.

APA

World Resources Institute (2019). Aqueduct 3.0: Updated Decision-Relevant Global Water Risk Indicators. https://www.wri.org/research/aqueduct-30-updated-decision-relevant-global-water-risk-indicators

Chicago

World Resources Institute. Aqueduct 3.0: Updated Decision-Relevant Global Water Risk Indicators. 2019. https://www.wri.org/research/aqueduct-30-updated-decision-relevant-global-water-risk-indicators.

Wikipedia

{{cite report |author=World Resources Institute |title=Aqueduct 3.0: Updated Decision-Relevant Global Water Risk Indicators |date=8 November 2019 |url=https://www.wri.org/research/aqueduct-30-updated-decision-relevant-global-water-risk-indicators |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{worldresourcesinstitute2019aqueduct, author = {{World Resources Institute}}, title = {{Aqueduct 3.0: Updated Decision-Relevant Global Water Risk Indicators}}, institution = {World Resources Institute}, year = {2019}, month = nov, url = {https://www.wri.org/research/aqueduct-30-updated-decision-relevant-global-water-risk-indicators}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }