With adaptation finance needs estimated to be higher than those presented in ARS, enhanced mobilization of and access to financial resources are essential for implementation of adaptation and to reduce adaptation gaps . Building capacity and removing some barriers to accessing finance is fundamental to accelerate adaptation, especially for vulnerable groups, regions and sectors . Public and private finance instruments include inter alia grants, guarantee, equity, concessional debt, market debt, and internal budget allocation as well as savings in households and insurance. Public finance is an important enabler of adaptation . Public mechanisms and finance can leverage private sector finance for adaptation by addressing real and perceived regulatory, cost and market barriers, for example via public-private partnerships . Financial and technological resources enable effective and ongoing implementation of adaptation, especially when supported by institutions with a strong understanding of adaptation needs and capacity . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report