The water crisis and prolonged droughts caused by global warming have become critically challenging all over the world. This crisis has gained more complex dimensions in Iran with two main components that have not been considered in many international evaluation indexes. The first problem is the unbalanced distribution of water in the country. The second problem is the disproportionate pattern of water consumption in different sectors. According to the latest evaluations, the water consumption of agriculture, industry, and drinking sectors account for 92%, 1.5%, and 6.5 % of the total consumption in the country, respectively. While this pattern in the world is 70%, 22%, and 8% respectively. Therefore, it is obvious that water consumption in the agricultural sector is higher than the actual needs. This shortage in our agricultural sector should be compensated by underground resources.