The World’s Most Valuable Resource Could be Sand
Humans use more sand than any other natural resources besides water and air. Almost every building is made at least partly with concrete, asphalt roads connect everything, and windows are everywhere, all of which use sand. The problem is, we’re running out of sand. Desert sand doesn’t generally work for construction and therefore we need sand from riverbeds, floodplains, and beaches.
Photo Credit: NOAA