Safe water for drinking, bathing, farming and more: it's said to be Earth's most precious resource, but due to factors like climate change, it's under increasing threat. On this episode of Biz Buzz Japan, we take a look at how Japanese businesses are using innovative technologies, from advanced filtering membranes to high-pressure pumps to a "magic powder" made from a surprising source, to tackle the impending water crisis and bring clean, safe water to Japan and the world.