In the remote village of Gitwe, Rwanda, 6-year-old children ascend mountains, or make the journey by foot along dusty roads – more than 3.5 miles each way – to fetch water for their families. They fill plastic motor oil jugs or any other container they can find. Barefoot and often in intense heat, they lug the 40-pound containers of water back home. “The bins that the children carry are just as big as they are,” says Carina Kurban ’14, who witnessed the daily procession of thirsty children during a fact-finding missionary trip in August 2010. “And many of the children…