The investment case for water is simple: water is one of the most important resources, and it is likely to become a lot scarcer. About 70% of the earth’s surface is covered in water, but over 97% is saltwater. Rapid industrialization and increasing agricultural use have contributed to worldwide water shortages.

Firms seeking to profit from water-related businesses include beverage providers, utilities, water treatment/purification firms, and equipment makers, such as those that provide pumps, valves, and desalination units.