Microfinance is increasingly viewed as a positive mechanism to improve access to climate adaptation funding . In the Caribbean, a significant barrier in accessing climate finance relates to bureaucratic structures, which means that money intended for communities does not reach them . Many adaptation projects even at the community level have upfront costs that need to be supported, especially in communities where there is little hard cash in use . Despite such challenges, communities in the Pacific region have used 'cashless adaptation' for a long time, which involves trading of services and items as a form of indigenous microfinance . Social networks also function as a source of informal microfinance where extended family members send back remittances from overseas to their families and communities especially after disasters. In Samoa, indigenous tourism operators receive remittances from overseas family members , with similar processes observed among atoll communities in the Solomon Islands , Vanuatu  and Jamaica . However, the role of migration and remittances is still poorly understood; it is difficult to quantify the informal flows and understand the extent to which they support effective adaptation  .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report