This document summarizes David Murphy's presentation on closing the world's worst dump sites. The presentation provided background on Murphy's experience in disaster relief and waste management, an overview of the International Solid Waste Association and their report on the 50 worst dump sites. It highlighted the dump sites in Managua, Nicaragua and Port-au-Prince, Haiti, describing the poor conditions, health impacts and efforts underway to relocate and employ residents. The presentation emphasized that improving waste management is essential to reducing environmental and public health problems globally.