Nigeria. In Aiyetoro, southern Nigeria, the existence of the coastal settlement is in crisis as the sea level rises. Every year the coastline is narrowing, and the debris of houses washed away by the sea is scattered on the remaining land. Although families who lost their homes have started rebuilding and living in the interior, the sea has once again engulfed their settlements after some time.Walking on the narrow strip of sand accessible only by boat, 35-year-old Thompson Akingboy said,