期刊
ECOSYSTEM SERVICES
卷 53, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ecoser.2021.101393
关键词
Climate change; Coral reefs; Discrete choice experiment; Hawaii; Non-use value
资金
- Biodiversa and The Netherlands Organisation for Scientific Research (NWO)
Global climate change has a significant impact on the health and productivity of coral reefs, leading to deteriorations that affect human welfare. This study conducted a discrete choice experiment among Hawaiian and US mainland residents, and found that climate change-induced declines in coral cover and fish numbers result in large welfare losses, while declines in coral health and fish species diversity lead to moderate welfare losses.
Global climate change is leading to rapid deteriorations of the health and productivity of coral reefs. There is limited research on the associated human welfare implications, particularly in terms of the non-use values that people hold for coral reefs. We examine climate related changes in non-use values of coral health, coral cover, water clarity, fish numbers, fish species diversity and presence of turtles. Using a discrete choice experiment conducted among 1,369 Hawaiian and US mainland residents, we find that climate change induced declines in coral cover and fish numbers result in large welfare losses; whereas, declines in coral health and fish species diversity lead to moderate welfare losses. Deterioration in water clarity results in large welfare losses for US mainland residents but relatively smaller losses for Hawaiian residents. On aggregate, differences in welfare estimates for the US mainland and Hawaii sample are minor. However, we find significant differences in the underlying determinants of willingness-to-pay for partial climate change mitigation including income and beliefs in the need to mitigate climate change. The paper concludes with some recommendations for policy on the basis of these findings.
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