Abstract
Pacific island countries are highly vulnerable to the effects of climate change, given their unique geography and natural-resource dependent economies. This paper reviews the potential impacts of climate change over the coming decades in the Pacific island-economies to identify measures for minimizing or mitigating these impacts. Drawing on the downscaling results of Global Climate Models (GCMs), the paper summarizes climate change effects such as changes in temperature, rainfall patterns, and sea levels. Assessment of GCMs suggests that sea level increases are likely to be substantially higher than previously accepted estimates, posing risks of inundation and salinization of freshwater in the Pacific island countries. Crop growth models suggest the potential for substantial losses of agricultural yields, while fisheries models predict changes to catches, and other modeling efforts identify substantial consequences for health and tourism. Integrated Assessment Models indicate the substantial total economic losses, if the business-as-usual growth strategy is followed. Appropriate adaptation strategies must be implemented, in order to ensure that poverty eradication and sustainable development are not impeded.
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Notes
- 1.
The Pacific is defined here to include Cook Island, Republic of Fiji, Kiribati, Marshall Islands (RMI), Fed. States of Micronesia (FSM), Nauru, Palau, Papua New Guinea (PNG), Samoa, Solomon Islands, Timor-leste, Tonga, Tuvalu and Vanuatu.
- 2.
The A1 scenario family describes a future world of very rapid economic growth, but declining global population after the mid-century, with varying assumptions of major technological progress: fossil intensive (A1FI), non-fossil energy sources (A1T), or a balance across all sources (A1B). The A2 scenario family describes a very heterogeneous world with continuously increasing global population and regionally oriented economic development. The B1 scenario family describes a convergent world with declining global population after the mid-century, rapid transition toward a service and information economy, reductions in material intensity, and the introduction of clean and resource-efficient technologies. The B2 scenario family describes a world where local solutions are emphasized for economic, social, and environmental sustainability (IPCC 2007).
- 3.
This analysis was performed for the periods of 2050 (mean value of 2041–2060 periods) and 2070 (mean value of 2061–2080 periods) based on the projection data from the output of RegCM3 model under SRES A1B.
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Park, CY., Raitzer, D.A., Samson, J.N.G., Halili, P.R.M. (2015). Climate Change and Adaptation Challenges in the Pacific. In: Leal Filho, W. (eds) Climate Change in the Asia-Pacific Region. Climate Change Management. Springer, Cham. https://doi.org/10.1007/978-3-319-14938-7_13
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DOI: https://doi.org/10.1007/978-3-319-14938-7_13
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