One in 10 people in the world lack access to safe water. That’s almost one billion people who are without something safe to drink every day. Every 19 seconds, a child dies of a water-related disease....

MeYou wake up. You take a shower. Brush your teeth. Flush the toilet. Wash your hands. Get a glass of water. Water the lawn. Start the dishwasher. Do a load of laundry. The average American uses about...