The IPCC’s Fifth Assessment Report

The document outlines how climate change poses an existential threat to Small Island Developing States (SIDS) through sea level rise, ocean acidification, and extreme weather. It emphasizes that while adaptation can reduce risks, SIDS face high economic costs due to a lack of economies of scale and limited resources. The briefing advocates for the integration of adaptation, mitigation, and development strategies, highlighting the potential for renewable energy to enhance energy security and the necessity of international cooperation to avert dangerous climate change.

• The Earth's climate is warming at an unprecedented rate, with the average surface temperature increasing by 0.85°C since the mid-19th century, and human activity is the dominant cause with 95% scientific certainty.
• Sea level rise is accelerating globally, but regional variations are significant; for instance, the tropical western Pacific reported rates up to four times the global average (approximately 12 mm per year) between 1993 and 2009.
• Climate change poses an existential threat to some SIDS, with the risk of partial inundation increasing and the possibility that some small island states may become uninhabitable.
• Marine ecosystems, particularly coral reefs, are highly vulnerable; ocean warming and acidification are eroding habitats that support fisheries and tourism, with some Caribbean reefs seeing a decrease in reef-building coral species of over 80%.
• SIDS face disproportionately high economic costs for adaptation because infrastructural works require large up-front overhead costs that cannot be downscaled to the size of their small populations or territories.
• Adaptation strategies in SIDS risk 'maladaptation' if interventions increase vulnerability in other sectors or locations, such as when resettlement discourages viable local adaptation or when insurance premiums become exorbitant.
• Transitioning to a low-carbon economy can improve energy security for SIDS by reducing reliance on costly fossil fuel imports, though the transition requires better energy storage technologies for intermittent sources like solar and wind.
• International cooperation and finance are vital for SIDS to implement adaptation and mitigation, with developed countries pledging to mobilise US$100 billion annually by 2020 for developing countries.

APA

Climate and Development Knowledge Network (2014). The IPCC’s Fifth Assessment Report. https://cdkn.org/sites/default/files/files/CDKN_IPCC_Whats_in_it_for_SIDS.pdf

Chicago

Climate and Development Knowledge Network. The IPCC’s Fifth Assessment Report. 2014. https://cdkn.org/sites/default/files/files/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=https://cdkn.org/sites/default/files/files/CDKN_IPCC_Whats_in_it_for_SIDS.pdf |access-date=17 August 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 = {https://cdkn.org/sites/default/files/files/CDKN_IPCC_Whats_in_it_for_SIDS.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }