As a child growing up in the rural outskirts of Hong Kong, "wash your hands" was a frequent -- and wise -- admonition. The simple act of eating a piece of fruit or a chocolate bar with soiled fingers and licking those delicious flavors off already dirty hands may have resulted in a stomachache, or so much worse. I was lucky. Even today, intestinal worms caused by lack of access to water for handwashing affects nearly a quarter of the people on this planet.
In a small, workshop off the main road leading to Masaya, Nicaragua, Francis Cano Gutierrez sits behind a bench and every few seconds, she kicks the flywheel with her bare feet to keep the clay spinning as she shapes it with her hands. It's hard not to break a sweat; it's August and the heat and humidity are in the 90s.