Water is the lifeblood of humanity; it turns out it is in short supply. Like any other commodity high in demand, you should keep an eye on it for investment purposes as we get closer and closer to “peak water.” Right now, the average American consumes about 100 gallons of water per day both directly and indirectly. This is a problem of conservation and efficiency as much as it is supply, as the aging water infrastructure had its last upgrade during the Reagan era.