Good coverage of adaptation finance data exists around international public finance flows, predominantly official development assistance flows from OECD DAC members and from multi-lateral development banks. Less data exist around domestic public finance and private finance flows to adaptation activities, but data sources continue to be further expanded, for example through climate change expenditure tagging and city-level data . Recent estimates of adaptation finance are provided in UNFCCC SCF , Macquarie et al.  and Cross- Chapter Box FAR in this Chapter.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report