Climatic Change

, Volume 136, Issue 2, pp 217–231

Balancing global water availability and use at basin scale in an integrated assessment model

  • Son H. Kim
  • Mohamad Hejazi
  • Lu Liu
  • Katherine Calvin
  • Leon Clarke
  • Jae Edmonds
  • Page Kyle
  • Pralit Patel
  • Marshall Wise
  • Evan Davies
Article

DOI: 10.1007/s10584-016-1604-6

Cite this article as:
Kim, S.H., Hejazi, M., Liu, L. et al. Climatic Change (2016) 136: 217. doi:10.1007/s10584-016-1604-6

Abstract

Water is essential for the world’s food supply, for energy production, including bioenergy and hydroelectric power, and for power system cooling. Water is already scarce in many regions of the world and could present a critical constraint as society attempts simultaneously to mitigate climate forcing and adapt to climate change, and to provide for a larger and more prosperous human population. Numerous studies have pointed to growing pressures on the world’s scarce fresh water resources from population and economic growth, and climate change. This study goes further. We use the Global Change Assessment Model to analyze interactions between population, economic growth, energy, land, and water resources simultaneously in a dynamically evolving system where competing claims on water resources from all claimants—energy, land, and economy—are reconciled with water resource availability—from renewable water, non-renewable groundwater and desalinated water sources —across 14 geopolitical regions, 151 agriculture-ecological zones, and 235 major river basins. We find that previous estimates of global water withdrawal projections are overestimated. Model simulations show that it is more economical in some basins to alter agricultural and energy activities rather than utilize non-renewable groundwater or desalinated water. This study highlights the importance of accounting for water as a binding factor in agriculture, energy and land use decisions in integrated assessment models and implications for global responses to water scarcity, particularly in the trade of agricultural commodities and land-use decisions.

Supplementary material

10584_2016_1604_MOESM1_ESM.docx (1.7 mb)
ESM 1(DOCX 1754 kb)

Funding information

Funder NameGrant NumberFunding Note
U.S. Department of Education (US)
  • DE-AC05-76RL01830

Copyright information

© Springer Science+Business Media Dordrecht (outside the USA) 2016

Authors and Affiliations

  • Son H. Kim
    • 1
  • Mohamad Hejazi
    • 1
  • Lu Liu
    • 1
  • Katherine Calvin
    • 1
  • Leon Clarke
    • 1
  • Jae Edmonds
    • 1
  • Page Kyle
    • 1
  • Pralit Patel
    • 1
  • Marshall Wise
    • 1
  • Evan Davies
    • 2
  1. 1.Joint Global Research Institute, Pacific Northwest National Laboratory5825 University Research CourtCollege ParkUSA
  2. 2.University of AlbertaEdmontonCanada

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