Ageing population and green space dynamics for climate change adaptation in Southeast Asia

Ji Soo Kim and Seung Kyum Kim ()
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Ji Soo Kim: Korea Advanced Institute of Science and Technology
Seung Kyum Kim: Korea Advanced Institute of Science and Technology

Nature Climate Change, 2024, vol. 14, issue 5, 490-495

Abstract: Abstract Climate change adaptation efforts are challenged by rapid population ageing and thus an increased proportion of vulnerable individuals. Despite its importance for adaptation planning, the link between ageing demographics and climate adaptation, particularly green infrastructure development, remains unexplored. Here we employ high-resolution satellite images and the difference-in-differences framework to assess the spatiotemporal relationship between ageing demographics and green space coverage change patterns across 26,885 Southeast Asian communities over the past two decades. We find that cities with an increased concentration of elderly residents exhibit greater vulnerability due to inadequate green infrastructure provision. The findings reveal green space reduction in ageing communities, which is more pronounced in socio-economically disadvantaged, rapidly ageing cities. Nonetheless, coastal cities, facing higher climate risks, exhibit no such decline due to their functional demand. Our results support considering socio-demographic shifts and geospatial disparities in city adaptation strategies.

Date: 2024
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DOI: 10.1038/s41558-024-01980-w

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