In a context of global climate change and growing concern surrounding water stress, the Arab region is among the most water-scarce regions of the world. Nineteen out of twenty-two States can count on less than 1,000 m3 of renewable water resources per capita annually, the water scarcity threshold. Thirteen States have less than 500 m3 per capita annually.1 This reality makes Sustainable Development Goal (SDG) 6, clean water and sanitation for all, an important priority for the Arab world, and comprises the motivation for launching a FAO-ESCWA collaboration.