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R Soc Open Sci. 2017 Nov 29;4(11):171044. doi: 10.1098/rsos.171044. eCollection 2017 Nov.

Vulnerability mapping as a tool to manage the environmental impacts of oil and gas extraction.

Royal Society open science

Surina Esterhuyse, Frank Sokolic, Nola Redelinghuys, Marinda Avenant, Andrzej Kijko, Jan Glazewski, Lisa Plit, Marthie Kemp, Ansie Smit, A Tascha Vos, Michael J von Maltitz

Affiliations

  1. Centre for Environmental Management, University of the Free State, PO Box 339, Bloemfontein, South Africa.
  2. Department of Sociology, University of the Free State, PO Box 339, Bloemfontein, South Africa.
  3. Department of Geology, University of Pretoria Natural Hazard Centre, Africa, University of Pretoria, Private Bag X20, Hatfield, Pretoria 0028, South Africa.
  4. Institute of Marine and Environmental Law, University of Cape Town, Private Bag X3, Cape Town, South Africa.
  5. Department of Mathematical Statistics and Actuarial Science, University of the Free State, PO Box 339, Bloemfontein, South Africa.

PMID: 29291094 PMCID: PMC5717668 DOI: 10.1098/rsos.171044

Abstract

Various biophysical and socio-economic impacts may be associated with unconventional oil and gas (UOG) extraction. A vulnerability map may assist governments during environmental assessments, spatial planning and the regulation of UOG extraction, as well as decision-making around UOG extraction in fragile areas. A regional interactive vulnerability map was developed for UOG extraction in South Africa. This map covers groundwater, surface water, vegetation, socio-economics and seismicity as mapping themes, based on impacts that may emanate from UOG extraction. The mapping themes were developed using a normative approach, where expert input during the identification and classification of vulnerability indicators may increase the acceptability of the resultant map. This article describes the development of the interactive vulnerability map for South Africa, where UOG extraction is not yet allowed and where regulations are still being developed to manage this activity. The importance and policy implications of using vulnerability maps for managing UOG extraction impacts in countries where UOG extraction is planned are highlighted in this article.

Keywords: South Africa; environmental assessment and protection; regulation; unconventional oil and gas; vulnerability map

Conflict of interest statement

We declare we have no competing interests.

References

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