At a planetary scale, Earth can’t run out  of freshwater thanks to the water cycle, a system that continuously produces  and recycles water, morphing it from vapour, to liquid,  to ice as it circulates around the globe.
A escala global, es imposible que la Tierra se quede sin agua potable, gracias al ciclo del agua, un sistema que continuamente produce y recicla agua, transformándola en vapor, líquido, hielo a medida que circula por el planeta.