As rain vanishes, Guatemalans learn to use every drop of water

As rain becomes ever scarcer in northern Guatemala, communities are learning how to carve out makeshift irrigation canals and purify their water to conserve every last precious drop.In the northern region of Quiche, mostly home to indigenous communities such as Mayans, residents are learning to build ditches above their sloped fields of corn or beans, so that water trickles down through the plants and keeps the soil moist for longer.