[IFPRI] World Food Day 2023 (October 16) focuses on the theme “Water is Life, Water is Food. Leave No One Behind.” While no one doubts that water of sufficient quantity and adequate quality is essential to sustaining all life on Earth, including us humans, water is often taken for granted. This is largely due to the fact that its role in food systems and many other vital processes—including ecosystem health, energy production, and manufacturing—remains, on the whole, invisible.