Today, cities are looking farther beyond their limits for clean water. Some cities involve desalinization procedures, investing billions of dollars to partially supply clean water. This kind of process in energy intensive, therefore, countries with a combination between water scarce and oil rich are the most probable to use this technique. This footprint analysis involve 534 cities, who draw water from 20 percent of the world’s land surface.For more information, access the Urban Water Blueprint report here: http://www.iwa-network.org/wp-content/uploads/2016/06/Urban-Water-Blueprint-Report.pdfYou can also visit the Urban Water Blueprint website here: http://water.nature.org/waterblueprint/#/intro=true