Today, 2.2 billion people lack access to safely managed drinking water. And waterborne diseases claim 830,000 lives a year, most of them children. Nearly half the globe already experiences water scarcity at least one month per year. And by 2050, according to the UN, this number could reach up to 5.7 billion people. Yet climate change, our rapidly ballooning population, and consistently poor resource management aren’t helping matters. The annual…