Either there is too much, or too little.
Water offers sound investment opportunities for knowledgeable investors.
There are newsletters devoted to describing the woes of countries and municipalities over water. Unfortunately, simply reporting on water problems does not help the investor because water is a Byzantine subject. Knowing who needs water is just the beginning. To make sound investments, one must understand the legal framework that controls the use of the physical supply. One must know who has the water and one must know how to get it to market.