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An Integrated Assessment of Investments towards Global Water Sustainability

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Millennium Institute, 2111 Wilson Blvd. Suite 700, 22201 Arlington, VA, USA
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McGill University, 845 Sherbrooke St. W. Montreal, Quebec, H3A 2T5, Canada
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Water 2010, 2(4), 726-741; https://doi.org/10.3390/w2040726
Received: 12 September 2010 / Revised: 29 September 2010 / Accepted: 14 October 2010 / Published: 18 October 2010
To date there has been limited research on integrated water resource management, specifically regarding investments, from a global perspective, largely due to the complexity of the problem and to generally local water management practices. Water demand and supply are very often affected by international factors and with global climate change, population growth and increasing consumption, water management is now more than ever a global issue. This paper gives an overview of current and impending water problems while assessing investment needs for integrated water management as a possible solution to projected water challenges. The analysis compares a business as usual case (BAU) to a scenario in which investments improve water efficiency use across sectors to curb demand, increase innovative supply from desalination and enhance conventional water resources management measures. System dynamics modeling is employed to represent the structural factors influencing water demand and supply in the context of an integrated framework including cross-sectoral linkages. The analysis confirms that sustainable water management is feasible, but it requires investments in the range of $145 billion per year between 2011 and 2050 (0.16% of GDP or $17/person/year) and timely, effective action. View Full-Text
Keywords: integrated water resource management; sustainability; system dynamics; T21; water; water management; water policy; water investment integrated water resource management; sustainability; system dynamics; T21; water; water management; water policy; water investment
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Bassi, A.M.; Tan, Z.; Goss, S. An Integrated Assessment of Investments towards Global Water Sustainability. Water 2010, 2, 726-741.

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