The Adaptation Accelerator Hub (AAH) is a global initiative aiming to fast-track climate change adaptation by helping developing countries, particularly those most vulnerable, turn climate plans into scalable, finance-ready solutions.
Around the world, climate change impacts are intensifying, from more frequent and severe storms, floods and droughts to slow-onset changes such as rising sea levels, saltwater intrusion and shifting ecosystems. In this context, adaptation efforts must drive systemic, long-term resilience, reshaping economies, infrastructure and social systems.
Yet while adaptation needs are growing rapidly, financing remains far below what is required. Many countries have identified priorities through their National Adaptation Plans (NAPs) and Nationally Determined Contributions (NDCs) but face persistent constraints in turning these into action. Limited institutional capacity, fragmented coordination and insufficient access to the right mix of technical support and finance continue to slow implementation. As a result, there is a widening gap between adaptation ambition and delivery.
Photo: Kelsea Clingeleffer / UNDP Cambodia
Led by the Government of Italy with UNDP as the partner agency, the AAH was established to help close the adaptation finance gap by supporting investment and implementation efforts. Rather than creating new structures, the Hub works as a strategic enabler by aligning existing systems, strengthening national institutions and coordinating partners to accelerate delivery at scale.
Through the AAH, six countries (Ethiopia, Senegal, Mauritius, Maldives, Cambodia and Ghana) are so far being supported to build coherent, country-owned investment platforms for adaptation through a €6 million contribution from Italy. This support includes strengthening coordination mechanisms and institutional capacity, developing pipelines of bankable projects and providing targeted technical assistance such as gap assessments, governance support and enabling tools. The Hub also works to connect governments with financial institutions, development banks and private sector actors, helping to mobilize finance and unlock new investment opportunities.
A defining feature of the AAH is its focus on alignment and investment readiness. By linking national priorities with sources of finance and fostering collaboration across governments, donors and partners, the Hub helps ensure that adaptation investments are coherent, scalable and grounded in country needs. It also promotes inclusive, locally led approaches that integrate gender equality, social equity and local knowledge.
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