Every year the same dismal, depressing scene repeats itself in the largest public cemetery in Guatemala City. Cemetery workers gather to exhume the bodies of some 4,000 children and deposit their remains in a mass grave that borders the city’s main garbage dump. The exhumations are the effect of a grim economic reality. Parents who laid their children to rest in the cemetery six years prior must come up with 180 Quetzales (U.S. $24) to renew their child’s burial plot. Most families are simply unable to come up with the funds, and so the annual ritual persists. In his series, “Forgotten Children,” photographer Saul Martinez takes us along to bear witness to this sad reality.