(August 2006, 23 pages, 349 KB PDF). In 2005 the Population and Development Branch of the United Nations Population Fund (UNFPA) asked CIESIN to undertake a study that would help the agency identify its strategic advantage for addressing urban poverty and sustainable development. In close collaboration with UNFPA, CIESIN produced a background paper, conducted a survey of UNFPA country offices, and organized a workshop attended by distinguished experts on urban population, poverty, and sustainable development. This report represents a distillation of all three elements.