Risk accumulation and amplification through cascading effects from ecosystems and ecosystem services to human systems will likely cause reduced habitability of some small islands  identified as the overarching KR . Habitability is understood as the ability of these islands to support human life by providing protection from hazards which challenge human survival; by assuring adequate space, food and freshwater; and by providing economic opportunities, which contribute to health and well-being- recognising that both supportive ecosystems and sociocultural conditions  play a critical role in habitability . The reduction of island habitability is expected to cause increased migration, along the afore-mentioned involuntary displacement to planned resettlement spectrum , which may eventually lead to population movements from exposed areas and depopulation of some islands. This risk is the highest for atoll nations, where some islands might become uninhabitable over this century . Despite a lack of literature assessing the risk of reduced habitability in non-atoll islands, the latter are also expected to experience decreased habitability, especially in their coastal areas.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report