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The Age of Ecological Scarcity

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Nature and Wealth
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Abstract

A critical problem facing humankind today is the rapid disappearance and degradation of many ecosystems worldwide. For the first time in history, fossil fuel energy and raw material use, environmental degradation and pollution has occurred on such an unprecedented scale that the resulting consequences in terms of global warming, ecosystem decline and environmental degradation are generating worldwide impacts. As a consequence, we are on the verge of a new era, the “Age of Ecological Scarcity”.1

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Notes

  1. See Edward B. Barbier (2011) Scarcity and Frontiers: How Economies Have Developed Through Natural Resource Exploitation. Cambridge and New York: Cambridge University Press.

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  2. See Gretchen C. Daily et al. (2000) “The Value of Nature and the Nature of Value”, Science, 289: 395–396;

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  3. Partha Dasgupta (2008) “Nature in economics”, Environmental and Resource Economics, 39: 1–7;

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  4. Edward B. Barbier (2011) Capitalizing on Nature: Ecosystems as Natural Assets. Cambridge and New York: Cambridge University Press.

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  5. This is well-documented in Thomas Piketty (2014) Capital in the Twenty-First Century. Harvard Cambridge, MA: University Press:

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  6. and in the earlier work Raymond W. Goldsmith (1985) Comparative National Balance Sheets: A Study of Twenty Countries, 1688 –1978. Chicago: University of Chicago Press.

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  7. For the original definition of ecological scarcity see Edward B. Barbier (1989) Economics, Natural Resource Scarcity and Development: Conventional and Alternative Views. London: Earthscan Publications, pp. 96–97: “The fundamental scarcity problem… is that as the environment is increasingly being exploited for one set of uses (e.g., to provide sources of raw material and energy, and to assimilate additional waste), the quality of the environment may deteriorate. The consequence is an increasing relative scarcity of essential natural services and ecological functions… In other words, if ‘the environment is regarded as a scarce resource’, then the ‘deterioration of the environment is also an economic problem’.”

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  8. For some relevant examples of this literature, see Edward B. Barbier (2007) “Valuing Ecosystems as Productive Inputs”, Economic Policy, 22: 177–229; Barbier (2011), Capitalizing on Nature op. cit.;

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  9. Gretchen C. Daily (ed.) (1997) Nature’s Services: Societal Dependence on Natural Ecosystems. Washington DC: Island Press; Daily, et al. (2000), op. cit.;

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  10. Environmental Protection Agency (EPA) (2009) Valuing the Protection of Ecological Systems and Services. A Report of the EPA Science Advisory Board. Washington DC: EPA;

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  11. Millennium Ecosystem Assessment (MA) (2005) Ecosystems and Human Well-being: Synthesis. Washington, DC: Island Press;

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  12. National Research Council (NRC) (2005) Valuing Ecosystem Services: Toward Better Environmental Decision Making. Washington DC: National Academy Press;

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  14. and The Economics of Ecosystems and Biodiversity (TEEB) (2010) The Economics of Ecosystems and Biodiversity: Mainstreaming the Economics of Nature: A Synthesis of the Approach, Conclusions and Recommendations of TEEB. Bonn, Germany: TEEB.

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  15. MA (2005), op. cit. Although the Millennium Ecosystem reported that global climate regulation by ecosystems has been enhanced, recent scientific evidence reported by the Intergovernmental Panel on Climate Change (IPCC) suggests that this may no longer be the case. See Intergovernmental Panel on Climate Change (IPCC) Working Group II (2014) Climate Change 2014: Impacts, Adaptation, and Vulnerability. Philadelphia: Saunders. Available at: www.ipcc.ch/report/ar5/wg2/

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  19. See, for example, Edward B. Barbier et al. (2011) “The Value of Estuarine and Coastal Ecosystem Services”, Ecological Monographs, 81(2): 169–183;

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  20. and S. C. Doney, et al. (2012) “Climate Change Impacts on Marine Ecosystems”, Annual Review of Marine Science, 4: 11–37.

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  25. and Boris Worm, et al. (2009) “Rebuilding Global Fisheries”, Science, 325: 578–585.

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  28. Freshwater is defined as having a low salt concentration or other dissolved chemical compounds — usually less than 1%. According to I. Shiklomanov (1993) “World Fresh Water Resources”, chapter 2 in P. H. Gleick (ed.) Water in Crisis: A Guide to the World’s Fresh Water Resources. Oxford: Oxford University Press, pp. 13–24, around 3% of the world’s water is fresh, and 99% of this supply is either frozen in glaciers and pack ice or found underground in aquifers. Freshwater ecosystems account for the remaining 1% of the world’s freshwater sources. Lakes and rivers, which are the main sources for human consumption of freshwater, contain just 0.26% of total global reserves.

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  31. This example is based on Edward B. Barbier (2013) “Wealth Accounting, Ecological Capital and Ecosystem Services”, Environment and Development Economics, 18: 133–161.

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  34. For more discussion of this approach to accounting for ecological capital, see Edward B. Barbier (2012) “Ecosystem Services and Wealth Accounting”, chapter 8 in UNU-IHDP-UNEP (2012) Inclusive Wealth Report 20 12, op.cit., pp. 165–194.

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  35. For a more technical treatment based on the same approach, see Barbier (2013), op. cit. In developing these methodologies for ecosystems, I have extended approaches to natural capital and wealth accounting, as suggested by Kenneth J. Arrow, et al. (2012) “Sustainability and the Measurement of Wealth”, Environment and Development Economics, 17: 317–353;

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  36. Partha Dasgupta (2009) “The Welfare Economic Theory of Green National Accounts”, Environmental and Resource Economics, 42: 3–38;

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  40. Although this approach to accounting for the contributions of and any changes to ecological capital appear straightforward, in practice there are numerous issues and challenges that need to be overcome. For further discussion, see Edward B. Barbier (2014) “Challenges to Ecosystem Service Valuation and Wealth Accounting”, chapter 7 in United Nations University (UNU)-International Human Dimensions Programme (IHDP) on Global Environmental Change;

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  41. and United Nations Environment Programme (UNEP) (2014) Inclusive Wealth Report 2014. Measuring Progress Toward Sustainability. Cambridge Cambridge: University Press, pp. 159–177.

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© 2015 Edward B. Barbier

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Barbier, E.B. (2015). The Age of Ecological Scarcity. In: Nature and Wealth. Palgrave Macmillan, London. https://doi.org/10.1057/9781137403391_5

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