Islands have specific vulnerabilities in the face of climate change, which justifies their specific analysis.

In the ecological sphere, Spanish islands have an added vulnerability due to factors such as the small size of many of their animal and plant populations and their lower connectivity with other emerged territories, which makes migration or recolonization after impacts more difficult.

In the socioeconomic sphere, islands often have poorly diversified economies and are therefore more vulnerable to change. In addition, they have specific risks in areas such as water or energy supply, which are also sensitive to the effects of climate change.