Domain: Water Stress and Scarcity
Global freshwater scarcity, agricultural water use, and the water-energy-food nexus with implications for conflict and development
Temporal scope: 1990-present | Population: Water-stressed regions worldwide
Key Findings
- Four billion people (two-thirds of the global population) experience severe water scarcity during at least one month of the year, with half a billion facing severe scarcity year-round (positive, strong)
- Agricultural irrigation accounts for approximately 70% of global freshwater withdrawals, making it by far the largest consumptive use of freshwater resources worldwide (positive, strong)
- Water stress levels are positively associated with localized conflict events, particularly in arid and semi-arid regions where competition for scarce water resources intensifies during drought periods (positive, moderate)
- Nearly 80% of the worlds population lives in areas where threats to human water security or biodiversity exceed critical thresholds, with developing countries facing greatest vulnerability (negative, strong)
- Higher water use efficiency (GDP per cubic meter) is associated with lower freshwater withdrawal intensity, but gains are often offset by population and economic growth (negative, moderate)