The IPCC’s Fifth Assessment Report

The document outlines the existential threats posed to Small Island Developing States (SIDS) by climate change, specifically sea level rise and ocean acidification. It emphasizes that while adaptation can reduce risks, SIDS face high per-capita costs due to a lack of economies of scale. The report advocates for integrating climate adaptation with broader development goals and transitioning to renewable energy to enhance energy security.

• Small Island Developing States (SIDS) are already experiencing climate impacts, including changing rainfall patterns that affect the quality and quantity of available freshwater.
• Sea level rise is accelerating globally, with some regions, such as the western Pacific, reporting rates up to four times the global average.
• Climate change poses an existential threat to some atoll nations, with the risk of partial inundation increasing due to higher sea level rise projections.
• Marine ecosystems in SIDS are under severe stress; mass coral bleaching triggered by heat stress is the most widespread impact, and ocean acidification further reduces biodiversity and coral growth.
• The economic cost of adaptation is disproportionately high for SIDS because infrastructural works require large up-front overhead costs that cannot be downscaled to smaller populations, a phenomenon termed 'indivisibility'.
• Adaptation in SIDS is hindered by 'hard' limits, such as the inability to retreat on islands and the depletion of fossil aquifers, as well as barriers like inadequate access to financial and technological resources.
• There is a risk of 'maladaptation' in SIDS, where interventions—such as certain insurance schemes or resettlement—might increase future vulnerabilities or discourage viable local adaptation initiatives.
• Integrating climate adaptation into broader development planning, such as poverty alleviation and disaster risk management, generates larger benefits for small islands.

APA

Climate and Development Knowledge Network (2014). The IPCC’s Fifth Assessment Report. http://cdkn.org/wp-content/uploads/2014/08/CDKN_IPCC_Whats_in_it_for_SIDS.pdf

Chicago

Climate and Development Knowledge Network. The IPCC’s Fifth Assessment Report. 2014. http://cdkn.org/wp-content/uploads/2014/08/CDKN_IPCC_Whats_in_it_for_SIDS.pdf.

Wikipedia

{{cite report |author=Climate and Development Knowledge Network |title=The IPCC’s Fifth Assessment Report |date=2014 |url=http://cdkn.org/wp-content/uploads/2014/08/CDKN_IPCC_Whats_in_it_for_SIDS.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climateanddevelopmentknowledgenetwork2014ipccs, author = {{Climate and Development Knowledge Network}}, title = {{The IPCC’s Fifth Assessment Report}}, institution = {Climate and Development Knowledge Network}, year = {2014}, url = {http://cdkn.org/wp-content/uploads/2014/08/CDKN_IPCC_Whats_in_it_for_SIDS.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }