IDB report said $47BN needed for climate finance gap by 2035

By: Staff Writer

November 25, 2025

The Inter-American Development Bank (IDB) in a new study said the financing gap for climate resilience adaptation is approximately $47 billion by 2035 for Latin America and the Caribbean (LAC). 

The report, “Resilience Now: Closing the Adaptation Gap in Latin America and the Caribbean,” revealed that: “Despite growing awareness and the expansion of adaptation tools — including engineered infrastructure, nature-based solutions, technological innovations, and financial instruments — current resilience efforts remain insufficient. Key barriers include fragmented governance, limited financial resources, inadequate institutional capacity, and significant protection gaps, particularly in insurance coverage. The annual financing gap for adaptation in LAC is estimated at approximately $47 billion by 2035, underscoring the urgent need for scaled-up, sustainable investments.”

It added: “To increase current and future resilience and to build a well-adapted LAC, four strategic priorities are essential: (1) moving from assessing to addressing risks by enabling iterative adaptation management; (2) mainstreaming adaptation by embedding resilience into development planning, climate mitigation, and nature-conservation efforts (3) harnessing technological innovation to enhance data-driven decision-making and proactive risk management; and (4) deploying finance and insurance intelligently to incentivize resilience investments, expand access to risk transfer mechanisms, and scale innovative adaptation finance approaches.”

Meanwhile, estimates from the International Monetary Fund and the Economic Commission for Latin America and the Caribbean estimates the climate resilience financing gap in LAC is substantial, with annual adaptation financing needs estimated at $14.7-18.1 billion and broader climate finance needs between $110-290 billion per year.

This gap is driven by a combination of high climate vulnerability, insufficient international climate finance flows (especially for adaptation and in sectors like agrifood systems), and challenging regional economic conditions including high debt levels and low investment. To bridge this gap, there is a push for increased private sector involvement, innovative financing like blended finance, stronger public-private partnerships, and reforms to better align all financial flows with climate goals. 

The IDB report also said: “Climate impacts are projected to intensify as greenhouse gas emissions continue to rise. These effects —considering temperature shocks and sea level rise alone — could reduce average GDP per capita by nearly 10 percent as a forthcoming analysis from the Grantham Research Institute3 shows. In this context, investing in adaptation is no longer optional; it is an urgent necessity that delivers a “triple dividend”: it helps avoid economic losses, stimulates growth through new opportunities, and generates broader social and environmental co-benefits. To be effective, countries must adopt context-specific strategies that prioritize mainstreaming adaptation into development planning. They must mobilize innovative financing mechanisms and strengthen domestic markets for adaptation technologies and services.

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