Thanks,
Population was/is/would be, never the problem. As I mentioned previously, mismanagement, or better to say loss of an expert managing system is the problem. For your knowledge, 92 percent of Iran's water usage is in agricultural section, and just 6 percent is used in residential sector. For a brief glimpse of the mismanagement you should consider that the number of wells have been increased by 11000% in the past 10 years while the average raining has reduced in the same period. What we need after a specialized managing stuff is a fundamental restructuring in agricultural section.