The aim of this proposal is to overcome the present, and prevent future, water competition between the vital economic sectors of agriculture and tourism in the Mediterranean area. The objective is to develop a trans boundary policy initiative and an integrated water-planning model based on the study of selected arid regions in the area. The current water supply and demand situation, available water saving, reuse, treatment and renewable energy supply options and the socio-economic, legal and administrative framework will be taken into account. The project will investigate policy options with regard to (1) water saving, (2) water reuse, (3) water treatment and desalination, (4) energy supply for the water sector from renewable sources,%l(5) legal and administrative measures, (6) Tran boundary co-operation and (7) an integrative and locally adaptable consideration of the entire water chain.