The human body is 70% water. The surface of the earth is 70% water. It is THE most important substance for making life possible. Learn about insightful ideas for using water, keeping it clean and getting it where people need it.
(Terry Goss/Wikimedia Commons https://commons.wikimedia.org/wiki/File:White_shark.jpg)
When people walk down the street, rarely do they ponder the subsurface infrastructure beneath their feet — including hidden waterways. (Yeshi Kangrang/Unsplash)
(Photo by Viktoriia Ponomarenko)