The natural capital of the vast deep ocean is significant yet not well quantified. The ecosystem services provided by the deep sea provide a wide range of benefits to humanity. Proposed deep-sea economic activities such as fishing, deep-sea mining and bioprospecting therefore need to be assessed in this context. In addition to quantifying the economic benefits and costs of such activities on their own, their potential impact on the deep-sea natural capital also needs to be considered.This article describes such a natural capital approach, identifies relevant ecosystem services and looks at how a range of proposed commercial activities could be assessed in this context. It suggests a methodology for such analysis and suggests an approach to a sustainable blue deep-sea economy that is consistent with environmental precaution. It will close with suggestions of how potential risks can best be handled.The article aims to show that modern environmental economics based on natural capital can provide a useful framework for deciding future deep-sea efforts.
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Thiele, T. (2019): Deep-Sea Natural Capital. Putting Deep-Sea Economic Activities into an Environmental Context. - In: Sharma, R. (Ed.), Environmental Issues of Deep-Sea Mining, Cham : Springer International Publishing, p. 507-518.DOI: http://doi.org/10.1007/978-3-030-12696-4_18
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