Quantify the scale and regional distribution of water stress, assess the health and economic consequences of inadequate sanitation, and evaluate the feasibility of meeting SDG 6 (clean water and sanitation) by 2030.

UNICEF/WHO Joint Monitoring Programme (JMP) database analysis across 189 countries (2000–2026). Cross-referenced with World Bank water scarcity indices and Lancet Commission on Water, Sanitation, Hygiene (WASH) health impact studies. Regional water availability modeling using AQUASTAT.

6 billion lack safely managed sanitation. In Sub-Saharan Africa, 401 million people practice open defecation. Water-related diseases (diarrhea, typhoid, cholera) kill 829,000 people annually — more than malaria, TB, and HIV combined.

Climate change is exacerbating stress: 4 billion people experience severe water scarcity for at least one month per year, projected to rise to 6 billion by 2050 under current warming trajectories. The health burden of inadequate WASH is estimated at 260 million disability-adjusted life years (DALYs) annually.

Meeting SDG 6 would require $114B annual investment globally — current funding is $28B, a gap that is widening.