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Furthermore, as part of the Blue2 project, several scenarios were developed for potential water saving measures for irrigated areas in southern European countries (Benitez Sanz et al., 2018). The main outcomes were that up to 5 % of the annual renewable freshwater resources in each river basin could be saved, if all planned irrigation efficiency measures from the RBMPs are implemented. In comparison, 10 % of the annual renewable freshwater resources could be saved if all feasible technical measures are implemented, regardless of their total cost (e.g. upgrade of conveyance systems to reduce leakages, seepage and evapotranspiration losses; application of the most efficient irrigation technology per case). Although these gains are considerable, taking into account the significant water stress levels in many southern river basins (often exceeding 30 % of the annual renewable freshwater resources), they are not sufficient to reverse the water scarcity conditions only on their own. In addition, in order to capitalize the aforementioned potential water savings, which are feasible by improved irrigation systems and equipment, both investments and supporting actions are required (e.g. adjustment of end-users’ management practices).