Shepherd Ibrahim Koc recalls his youth with fondness as his cattle grazes on a barren field that was once lush with vegetation on the edge of Turkey's largest lake. An occasional shrub marks the spots from where Lake Van has receded over years of global heating and drought. "The animals are thirsty," the 65-year-old shepherd laments. "There is no water," he says, echoing sentiments expressed by a growing number of Kurds and Turks who have watched their mountains lose ice caps and their water reservoirs dry up. IMAGES AND SOUNDBITES ARRANGED IN SEQUENCES