This study developed a methodology to estimate the amount of construction material in coastal buildings which are lost due to climate change-induced sea level rise. The Republic of Fiji was chosen as a case study; sea level rise is based on predictions by the Intergovernmental Panel on Climate Change for the years 2050 and 2100. This study combines the concept of a geographic information system based digital inundation analysis with the concept of a material stock analysis. The findings show that about 4.5% of all existing buildings on Fiji will be inundated by 2050 because of an expected global sea level rise of 0.22 m (scenario 1) and 6.2% by 2100 for a sea level rise of 0.63 m (scenario 2). The number of buildings inundated by 2050 is equivalent to 40% of the average number of new constructed buildings in Fiji Islands in a single year. Overall, the amount of materials present in buildings which will be inundated by 2050 is 900,000 metric tons (815,650 metric tons of concrete, 52,100 metric tons of timber, and 31,680 metric tons of steel). By 2100, this amount is expected to grow to 1,151,000 metric tons (1,130,160 metric tons of concrete, 69,760 metric tons of timber, and 51,320 metric tons of steel). The results shall contribute in enhancing urban planning, climate change adaptation strategies, and the estimation of future demolition flows in small island developing states.

Environmental change is increasingly challenging the habitability of places around the world, particularly with regard to resource-dependent rural areas in the Global South. Apart from objectively measurable, bio-physical indices, it is likewise important to look at individual and group-specific perceptions of habitability, which are embedded in their respective socio-cultural context(s). Migration as a well-established household risk diversification strategy has the potential to increase people’s adaptive capacity, their well-being, and can shape the way people perceive the habitability of places. This study utilizes a human-centered approach in order to unravel the impacts of migration on culturally-embedded and subjective perceptions of habitability in a rural community in Northern Ghana which faces increasing pressure of environmental changes. Based on qualitative empirical research, we utilize place attachment, social status, and community cohesion as exemplary socio-cultural dimensions with particular relevance in this specific local context to showcase 1) the subjectivity and cultural embeddedness of habitability perceptions and 2) the respective potential of migration to influence such perceptions to both positive and negative ends. Positive migration impacts on the underlying socio-cultural context(s) can serve to undergird (collective) responsibility and adaptive action towards improving local habitability in parallel to encouraging efforts that strive to maintain cultural integrity. Integrating this knowledge in future habitability assessments can pave the way for context-sensitive and locally-adjusted resilience-building strategies that take the potential benefits and disadvantages of migration into account.