This report was prepared by a World Bank team comprising Amal Talbi, Anders Jägerskog, Edoardo Borgomeo, and Marcus Wijnen. The report benefited from the guidance of Carmen Nonay and Steven Schonberger. The report draws on a background paper and notes prepared by Mohamad Hejazi (Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland), Fernando Miralles-Wilhelm (Earth System Science Interdisciplinary Center and Joint Global Change Research Institute, University of Maryland), Jae Edmonds (Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland), Leon Clarke (Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland), Son Kim (Joint Global Change Research Institute, Pacific Northwest National Laboratory), Catherine Yonkofski (Pacific Northwest National Laboratory), David Watson (Pacific Northwest National Laboratory), Gordon Kyle (Joint Global Change Research Institute, Pacific Northwest National Laboratory), Yaling Liu (Joint Global Change Research Institute, Pacific Northwest National Laboratory), Christopher Vernon (Pacific Northwest National Laboratory), and Alison Delgado (Joint Global Change Research Institute, Pacific Northwest National Laboratory). This work benefited from comments received from Nathan Lee Engle (Senior Climate Change Specialist, World Bank), Diego Rodriguez (Senior Water Resources Management Specialist, World Bank), Bill Garthwaite (EBA Water Law Team, World Bank), Konstantia Katsouli (EBA Water Law Team, World Bank), Waleed Saleh I. Alsuraih (Lead Energy Specialist, World Bank), Abdulhamid Azad (Lead Water Resource Management Specialist, World Bank), Richard Damania (Global Lead, Water and the Economy, World Bank) and Claudia Sadoff (Director General, International Water Management Institute).