A study by the Laboratorio de Climatología de la Universidad Jaume I de Castellón shows that the effect of climatic change in this region will reduce the amount of water in both the Júcar and Segura rivers by between 25 and 40%.
By 2050, the study calculates an average temperature rise of 1 degree Celsius resulting in 5% less rainfall. The Ebro, on the other hand is expected to see increased rainfall. In order to prevent the desertification of this area, the study therefore concludes that it is necessary to create the means to transfer water from the Ebro to the Júcar and Segura rivers.
Transferring water from one region to another is more than an engineering challenge; it is a matter of politics. Although Spain is one country, each region safely guards its resources and is reluctant to share them with others.