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Begin New Search Topic Natural Resources Author Laura Diaz Anadon

1. Assessing Future Water Availability in Arid Regions Using Composition and Salience of Decision Criteria

Author:
Laura Diaz Anadon, Afreen Siddiqi, and Farah Ereiqat
Publication Date:
03-2014
Content Type:
Working Paper
Institution:
Belfer Center for Science and International Affairs, Harvard University
Abstract:
Water resources development options are usually selected on a least-cost basis. While economic considerations are dominant in choosing projects, there are also a mix of other factors including social demands, political expediency, social equity, and environmental considerations that impact final decisions and development of water supply systems. Understanding local priorities in water resource management decisions can allow for forming expectations of future regional water availability. In this research, we propose that future water availability in arid regions may be assessed by considering key projects that have been identified or planned by regional experts. Using Multi-Criteria Decision Analysis methods as a framework to organize set of decision criteria and their relative salience, the likelihood of selection (and development) of a project can be determined and used to form expectations of future regional water availability. We use this approach in a case study for Jordan, and find that large-scale desalination projects–that have been in the planning books for decades-are now most likely to be pursued and implemented in the country. Finally, we discuss strengths, limitations, and the general applicability of this method for assessing future water availability in other arid regions.
Topic:
Development, Economics, Environment, Natural Resources, and Water
Political Geography:
Middle East

2. A New Case for Wastewater Reuse in Saudi Arabia: Bringing Energy into the Water Equation

Author:
Arani Kajenthira, Laura Diaz Anadon, and Afreen Sidiqqi
Publication Date:
06-2011
Content Type:
Policy Brief
Institution:
Belfer Center for Science and International Affairs, Harvard University
Abstract:
Industrial and urban water reuse should be considered along with desalination as options for water supply in Saudi Arabia. Although the Saudi Ministry for Water and Electricity (MoWE) has estimated that an investment of $53 billion will be required for water desalination projects over the next 15 years [1], the evolving necessity to conserve fossil resources and mitigate GHG emissions requires Saudi policy makers to weigh in much more heavily the energy and environmental costs of desalination. Increasing water tariffs for groundwater and desalinated water to more adequately represent the costs of water supply could encourage conservation, but also reuse, which may be more appropriate for many inland and high-altitude cities. The Saudi government should expand its support for water conservation and reuse within industry through financial incentives or through the implementation of cleaner production standards that encourage energy and water conservation and reuse. The case studies discussed in this work suggest that the implementation of water conservation, reuse and recovery measures in the natural gas [2] and crude oil [3] sectors alone have the potential to conserve up to 222 million m3 of water annually [2-4], or 29% of the total industrial water demand in 2009 [5]. In the municipal sector, increasing secondary wastewater treatment and reuse resulted in substantial cost and energy savings for six inland cities, while an estimated 26% of urban water needs could be met by treated wastewater. Therefore, industrial and domestic water reuse have the potential to appreciably reduce water withdrawals, conserve non-renewable aquifer water, and reduce reliance on desalination, which is primarily driven by non-renewable natural gas. Anticipated investments in desalination projects could also be deferred by prioritizing investment in sewage and water distribution networks that would ensure more effective water reclamation and reuse while simultaneously conserving non-renewable groundwater and natural gas resources and preventing the lock-in of potentially unnecessary desalination infrastructure that is likely to become more efficient in future.
Topic:
Energy Policy, Natural Resources, and Infrastructure
Political Geography:
Middle East and Saudi Arabia