This volume is the 7th in a series of books that focus on the practice of Urban Environmental Management (UEM) in developing countries. Such cities face more immediate problems than those in the developed world and have fewer resources to deal with them. This study is the report of a graduate workshop that took place at the School of Planning, College of Design, Architecture, Art and Planning, University of Cincinnati, USA from August through December 2020. The objective of the workshop was to prepare students to work overseas in data-poor environments as professional consulting planners. The 10 domestic and international students operated in sector-level working groups or teams preparing a 5-Year Environmental Plan for Istanbul, Turkey. This extraordinary city straddles the Bosphorus Strait, and lies in both Europe and Asia. Numbering over 15 million residents, and growing quickly, Istanbul is the largest city in Europe, and the world’s 5th largest city in terms of population within city limits.