March 22nd marks the twenty-third annual observance of World Water Day, an initiative overseen by U.N.-Water, which bills itself as “the United Nations inter-agency mechanism on all freshwater related issues.” It also marks the first anniversary of an ambitious international collaboration between Dar Si Hmad, a Moroccan N.G.O., and several German partner organizations to bring potable water to the Aït Baâmrane tribal region of southwest Morocco using a technology called CloudFisher. Aït Baâmrane borders the Western Sahara; like the Atacama, it is an area marked by centuries of desertification.