Urban growth, climate change, and freshwater availability

@article{McDonald2011UrbanGC,
  title={Urban growth, climate change, and freshwater availability},
  author={Robert I. McDonald and Pamela J. Green and Deborah Balk and Bal{\'a}zs M. Fekete and Carmen Revenga and Megan Todd and Mark R. Montgomery},
  journal={Proceedings of the National Academy of Sciences},
  year={2011},
  volume={108},
  pages={6312 - 6317}
}
Nearly 3 billion additional urban dwellers are forecasted by 2050, an unprecedented wave of urban growth. While cities struggle to provide water to these new residents, they will also face equally unprecedented hydrologic changes due to global climate change. Here we use a detailed hydrologic model, demographic projections, and climate change scenarios to estimate per-capita water availability for major cities in the developing world, where urban growth is the fastest. We estimate the amount of… 

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References

SHOWING 1-10 OF 38 REFERENCES
Potential impacts of global warming on water resources in southern California.
  • M. Beuhler
  • Environmental Science
    Water science and technology : a journal of the International Association on Water Pollution Research
  • 2003
TLDR
Long-range water facility planning must consider global climate change in the recommended mix of new facilities needed to meet future water requirements, and planning for future water needs should include explicit consideration of the potential range of global warming impacts.
The rising tide: assessing the risks of climate change and human settlements in low elevation coastal zones
Settlements in coastal lowlands are especially vulnerable to risks resulting from climate change, yet these lowlands are densely settled and growing rapidly. In this paper, we undertake the first
Water transfers, agriculture, and groundwater management: a dynamic economic analysis.
Continental scale models of water balance and fluvial transport: An application to South America
A coupled water balance and water transport model (WBM / WTM) was constructed as part of a larger study of global biogeochemistry. The WBM / WTM provides critical hydrologic information to models of
Global irrigation water demand: Variability and uncertainties arising from agricultural and climate data sets
Agricultural water use accounts for around 70% of the total water that is withdrawn from surface water and groundwater. We use a new, gridded, global‐scale water balance model to estimate interannual
Cities vs. agriculture: A review of intersectoral water re‐allocation
Water demand management, or making better use of the water we have — as opposed to augmenting supply — is increasingly proposed as a way of mitigating water-scarcity problems. Moving water away from
Millennium Ecosystem Assessment scenario drivers (1970–2050): Climate and hydrological alterations
This study was carried out to support and enhance a series of global studies assessing contemporary and future changes in nutrient export from watersheds (Global Nutrient Export from Watersheds
...
...