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Water harvesting: an overview
The purpose of this working paper is four fold; first to provide a historical context for WH, looking at ancient technologies and the societies that employed these ingenious techniques to ensure their survival in often harsh environments. The second, outlines the external factors that need to be considered when implementing WH systems and the third aims to define and outline the three principle WH techniques and provides examples of each. Finally this paper examines WH as it is understood today and profiles various non-governmental organizations that have employed WH techniques with a critical analysis on their development strategies and their work.