Optimal Carbon Dioxide Removal in Face of Ocean Carbon Sink Feedback

Vassiliki Manoussi, Soheil Shayegh and Massimo Tavoni ()
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Vassiliki Manoussi: FEEM and CMCC

No 2017.57, Working Papers from Fondazione Eni Enrico Mattei

Abstract: Carbon dioxide removal (CDR) is a potentially important climate strategy for attaining low climate stabilization objectives. However, climate analysis has indicated a possible weakening of the ocean carbon sinks -the largest in the world- in relation to CDR deployment. Here, we provide an economic appraisal to assess the sensitivity of CDR and conventional abatement to CO2 outgassing from the oceans. We develop a theoretical framework to study the impact of the ocean-to-atmosphere transfer on the optimal mitigation strategies under different regimes that control the relationship between CO2 outgassing and the amount of CDR. We show that the optimal levels of emissions and CDR are correlated to the effectiveness of CDR expressed as a linear function of atmospheric concentrations. We incorporate this effect into an integrated assessment model of climate and economy (DICE model) and confirm the theoretical findings with numerical simulations. Further, we perform a sensitivity analysis to find the range of optimal abatement and CDR actions under different values of the CDR effectiveness coefficient.

Keywords: Climate Change; Outgassing; Carbon Dioxide Removal; Integrated Assessment Model (DICE) (search for similar items in EconPapers)
JEL-codes: Q53 Q54 (search for similar items in EconPapers)
Date: 2017-12
New Economics Papers: this item is included in nep-ene and nep-env
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Working Paper: Optimal Carbon Dioxide Removal in Face of Ocean Carbon Sink Feedback (2017)
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