Looking out at the Tigris River in Hasankeyf, Turkey, 2008. The town is gradually being submerged as part of a controversial dam project. Photo by Carolyn Drake/Magnum Photos The power of water Far more potent than oil or gold, water is a stream of geopolitical force that runs deep, feeding crops and building nations Giulio Boccaletti + BIO AEON 15 February 2022 Giulio Boccaletti is an author, e..