Solving the water crisis is central to our future on a livable planet. Whether it is too much, too little, or too polluted water, this triple threat, exacerbated by climate change, denies billions of people reliable access to safe water and sanitation.  It threatens economies, fuels migration, and can ignite conflict. We need global action to establish water security for green, resilient, and inclusive growth, and to tackle the water-climate-conflict nexus.