Presentation of actual global water situation and the increasing demand of water in particularly in defined areas of the World. Description of technologies utilized to produce fresh – water for human use and their utilization and introduction of foot – print concept in order to understand how water is used for the production and consumption choices. An area with an high need of water compared to existing resources is the North – Africa. To understand better the water needs in Northern – Africa countries (Algeria, Egypt, Libya, Morocco, Sudan, Tunisia) it was made an analysis on their past and actual water uses, in particular for their typical local crops.