In our generation of new technologies and high civilization it is difficult to believe that our world is in a water crisis. This crisis affects not only low-developed parts of the world, but also affects highly developed countries, approximately one third of humanity suffers from water scarcity (Molden 2010). One of the main causes is overpopulation. With the growing demand for water, the water sources we have now are unable to renew themselves. Another factor of water scarcity is uneconomical consumption. Nowadays, most countries are starting to realize that solving the problem of water scarcity is crucial. One of these is Mexico, where water scarcity is a national problem. Water Scarcity in Mexico The total surface area of ​​Mexico is slightly less than 2 million km2 (UNESCO 2006). The population is approximately 103 million people (Castro and Heller 2009). Over the past two decades, as the country's population has grown intensively, the demand for water has also increased significantly. According to Armentia and Cisneros, the number of people without access to water is approximately 11 million, almost 11% of the Mexican population (Castro and Heller 2009). But many more people do not have access to drinking water. Furthermore, this situation of lack of water is aggravated by the malfunctioning of the sewage systems. But to understand the causes of water scarcity in Mexico and evaluate government policy in this area, we need to look at it carefully. Mexico is a highly urbanized country. Nearly 78% of its citizens live in cities (Castro and Heller 2009). This is why citizens of urban areas suffer most from significant water shortages. The water supply situation in urban areas is critical. For example, Mexico City, with a population of around 20 million people, faces severe water shortages. It draws water from 3 main basins, all of which are overexploited (UNESCO 2006). The government's solution to this problem was to pump water from the aquifers. However, these palliative actions by the government have not solved the problem, three aquifers from which the city gets its water are overused (UNESCO 2006). Another measure adopted by the government of Mexico is charging money for water consumption (Castro and Heller 2009). This fact encourages Mexican citizens to save water because the more water they waste the more money they pay.