Small Island Developing States (SIDS) are facing significant challenges in accessing climate finance, a situation exacerbated by perceptions that categorize them as too small, fragmented, and risky for investment. A recent report titled “Financing SIDS’ Blue Development: An Assessment of Regional Delivery Frameworks,” launched by the Back to Blue initiative—collaboratively undertaken by Economist Impact and The Nippon Foundation—highlights these issues.
Although SIDS contribute less than 1% of global greenhouse gas emissions, they are disproportionately affected by climate change, suffering severe consequences while receiving only a fraction of the estimated US$12 billion in annual climate finance they require. The report underscores that fragmented governance structures, small project sizes, and limited institutional capacity deter potential funders who perceive investment in SIDS as low-return and high-risk.
Grenadian Ambassador Safiya Sawney emphasized the need for collaboration between SIDS and funding organizations, stating that coordinated efforts can help develop resilient blue economies. A more tailored approach in alignment with the specific needs of these small islands could lead to a more effective financing system, breaking the cycle of vulnerability that currently plagues SIDS.
Tourism, which constitutes about 30% of the GDP for many SIDS, is significantly impacted by climate events. The economic fallout from climate-related disasters from 2000 to 2022 has resulted in an average annual loss of US$1.7 billion, totaling US$41.3 billion. Lemalu Karena Lyons from the Pacific Islands Development Programme remarked on the urgent need to reevaluate how SIDS are financed, as each funding gap exacerbates their exposure, debt, and vulnerability to climate shocks.
The report investigates two regional initiatives—OECS 30×30 Transformation Programme and Unlocking Blue Pacific Prosperity (UBPP)—offering potential pathways for increased funding. OECS 30×30 aims to raise up to US$300 million for Caribbean islands through a data-driven marine conservation effort, while UBPP proposes a framework for sustainable management of blue economies in the Pacific, potentially generating US$500 million. Both initiatives highlight the shortcomings of the current funding landscape for SIDS, highlighting a clear need for reform.
Experts from Back to Blue assert that overcoming these financial challenges requires not only increased funding but also effective deployment of resources through coordinated investment, data sharing, and supportive policies from SIDS governments. The complexity and frequency of climate-related shocks make it imperative to prioritize effective financing solutions.
These discussions are gaining momentum at the political level. The Alliance of Small Island States (AOSIS) made strides in September 2025 by issuing a Leaders’ Declaration, advocating for the establishment of SIDS’ “special circumstances” as a core principle of international law to ensure more accessible and customized financing pathways.
UN Special Ocean Envoy Peter Thompson voiced concerns that SIDS, which play a frontline role in climate issues they did not cause, should be prioritized for climate financial assistance. Until significant improvements are made to the financing system, SIDS will remain at significant risk.
To move forward, the report urges both funders and SIDS governments to collaborate and take decisive actions ahead of the upcoming COP31, scheduled to occur in various Pacific Islands. Ambassador Illana Seid of Palau echoed the call for innovation, stressing the importance of avoiding historical financing models that have previously failed.
This comprehensive analysis paints a picture of both the urgency for support and the potential for innovative, collaborative solutions to empower Small Island Developing States in their fight against climate vulnerabilities.