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Climate change impacts on critical international transportation assets of Caribbean Small Island Developing States (SIDS): the case of Jamaica and Saint Lucia


This contribution presents an assessment of the potential vulnerabilities to climate variability and change (CV & C) of the critical transportation infrastructure of Caribbean Small Island Developing States (SIDS). It focuses on potential operational disruptions and coastal inundation forced by CV & C on four coastal international airports and four seaports in Jamaica and Saint Lucia which are critical facilitators of international connectivity and socioeconomic development. Impact assessments have been carried out under climatic conditions forced by a 1.5 °C specific warming level (SWL) above pre-industrial levels, as well as for different emission scenarios and time periods in the twenty-first century. Disruptions and increasing costs due to, e.g., more frequent exceedance of high temperature thresholds that could impede transport operations are predicted, even under the 1.5 °C SWL, advocated by the Alliance of Small Island States (AOSIS) and reflected as an aspirational goal in the Paris Climate Agreement. Dynamic modeling of the coastal inundation under different return periods of projected extreme sea levels (ESLs) indicates that the examined airports and seaports will face increasing coastal inundation during the century. Inundation is projected for the airport runways of some of the examined international airports and most of the seaports, even from the 100-year extreme sea level under 1.5 °C SWL. In the absence of effective technical adaptation measures, both operational disruptions and coastal inundation are projected to increasingly affect all examined assets over the course of the century.

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The study benefitted from valuable discussions with participants at two national workshops, in Saint Lucia (24–26 May 2017) and in Jamaica (30 May–1 June 2017), and a regional workshop in Barbados (5–7 December 2017) which are gratefully acknowledged.


The authors gratefully acknowledge the support received under UN Development Account Project 1415O ( Also acknowledged with thanks is the support by the Disaster Risk Management Unit of the Joint Research Centre of the European Commission.

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Correspondence to Isavela Ν. Monioudi.

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The views expressed in this contribution are those of the authors (Regina Asariotis, Willard Phillips, and Mizushi Satoh) and not necessarily those of the United Nations

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Monioudi, I.Ν., Asariotis, R., Becker, A. et al. Climate change impacts on critical international transportation assets of Caribbean Small Island Developing States (SIDS): the case of Jamaica and Saint Lucia. Reg Environ Change 18, 2211–2225 (2018).

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  • Climate change
  • SIDS
  • Caribbean
  • International transport
  • Extreme sea levels
  • Dynamic flood modeling