In a small village near central Tunisia's city of Kairouan, women braving the scorching summer sun queue at one of the town's last water sources -- a pipe meant for crop irrigation. "We carry gallons of water on our backs and bring them from afar because the donkeys that used to carry the water have died of thirst," says resident Leila Ben Arfa. In its sixth year of drought, Tunisia is the world's 33rd most water-stressed country according to the World Resources Institute. IMAGES AND SOUNDBITES ARRANGED IN SEQUENCES