The unavailability of up-to-date baseline data and contrasting scenarios/temperature levels continue to impair the generation of local-to-regional observed and projected impacts for small islands, especially those that are developing nations . Climate model data based on the most recent suite of scenarios  are still not widely available to primary modelling communities in most small island developing nations . Coastal sites of small islands are not well represented in global gridded population and elevation data sets, thereby making estimation of population exposure to SLR difficult. The lack of data continues to impede the development of robust impacts- based modelling output . Downscaling is pivotal for small islands due to their high diversity, which makes generalisation invalid.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report