Increased migration is to be expected across different climate scenarios, but there is limited evidence and medium agreement about the scale of climate-induced migration at the coast . Planned relocation is expected to rise in C&S in response to SLR and other coastal hazards . Relocation has predominantly been reactive to date, but increased attention is being given to pre- emptive resettlement and the potential pathways and necessary governance, finance and institutional arrangements to support this strategy . There is limited evidence about the costs of planned relocation and retreat more generally .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report