Scheduled for completion in 2014, Turkey's Ilisu Dam will generate nearly 2 percent of the country's electricity. It will also submerge dozens of towns on the Tigris River, including 12,000-year-old Hasankeyf. The dam also threatens to dry up Iraq's Mesopotamian marshes some 1,000 miles (1,609 kilometers) downstream, affecting the people and wildlife who depend on the marshes for survival. Read more about the effects the dam will have downstream: news.nationalgeographic.com/news/2014/02/140221-tigris-river-dam-hasankeyf-turkey-iraq-water/ PRODUCERS: Anna Ozbek and Julia Harte SENIOR PRODUCER: Jason Orfanon VIDEOGRAPHER AND EDITOR: Anna Ozbek ADDITIONAL AUDIO MIXING: Justin Elliot MAP GRAPHICS EDITOR: Maggie Smith