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Sustainability 2015, 7(9), 11949-11966; doi:10.3390/su70911949

The Economic Impact of Climate Change on Road Infrastructure in Ghana

1
Department of Economics, University of Ghana, P.O. Box LG 57, Accra, Ghana
2
Civil, Environmental and Architectural Engineering Department, University of Colorado, Boulder, CO 80309-0428, USA
3
Institute of Climate and Civil Systems, University of Colorado, Boulder, CO 80309-0428, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Wisdom Akpalu and Channing Arndt
Received: 23 June 2015 / Revised: 17 August 2015 / Accepted: 20 August 2015 / Published: 28 August 2015
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Abstract

This paper estimates the economic impact of climate change on road infrastructure using the stressor-response methodology. Our analysis indicates that it could cumulatively (2020–2100) cost Ghana $473 million to maintain and repair damages caused to existing roads as a result of climate change (no adapt scenario). However, if the country adapts the design and construction of new road infrastructure, expected to occur over the asset’s lifespan (adapt scenario), the total cumulative cost could increase to $678.47 million due to the initial costs of adaptation. This investment provides lower costs on a decadal basis later in the infrastructure lifespan. This creates the planning question of whether lower decadal costs in the future are a priority or if minimizing initial costs is a priority. The paper addresses this question through decadal and average annual costs up to the year 2100 for the ten regions, using the potential impacts of 54 distinct potential climate scenarios. View Full-Text
Keywords: climate change; stressor-response; roads; temperature climate change; stressor-response; roads; temperature
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Twerefou, D.K.; Chinowsky, P.; Adjei-Mantey, K.; Strzepek, N.L. The Economic Impact of Climate Change on Road Infrastructure in Ghana. Sustainability 2015, 7, 11949-11966.

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