How can water reuse help solve the global water crisis?

Today, 26% of the global population - about 2 billion people - live without reliable access to safe drinking water. And, as climate change worsens, the availability of fresh water will only decrease. By 2050, as many as 3.2 billion people could live in severely water-scarce regions of the world. More than half the global population will experience water scarcity for at least one month a year.Options for mitigating this crisis are limited: we can use less water, discourage po...