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ESCWA Water Development Report 3

Role of Desalination in Addressing Water Scarcity

image of ESCWA Water Development Report 3
There is a growing concern among the international community that a pending water crisis is threatening the entire global population, not only those living in arid to semi-arid areas. This Report, the second in the series of the United Nations World Water Development Report (WWDR), gives and overview of the water resources in the ESCWA (Economic and Social Commission for Western Asia) region based on the most recent data and information obtained from member countries. The state of water resources in the region is analyzed and assessed on the basis of data and indicators selected from available information and within the context of integrated water resources management (IWRM). The Report provides a comprehensive summary of the current situation of water resources in each member country in term of availability, accessibility and sustainability.

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Models produced for estimating desalination cost

ESCWA produced a model to calculate desalination costs based on a large database of desalination plants available from the International Desalination Association (IDA). The intended goal of the model was to produce an equation with which an estimate of the cost of desalination could be made using simple inputs such as capacity, online date, feedwater and technology. As noted in chapter IV, the model developed did not succeed given data gaps and inconsistencies. Therefore, other methods to calculate desalination costs have been used in the main text. The following are the details of the model presented for completeness and transparency of the process used by ESCWA.

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