Pakistan's water scarcity is a multi-causal crisis: (1) Governance and infrastructure failures — the Indus Basin irrigation system loses an estimated 40% of water to seepage and evaporation; (2) Demand pressure — Pakistan's population growth (one of the highest in Asia) and urban expansion continuously expand water demand; (3) Climate change — accelerating glacial melt (short-term flood risk), long-term reduction in glacier-fed river flows, and shifting monsoon patterns all exacerbate supply-side constraints.