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The timing of biological carbon sequestration and carbon abatement in the energy sector under optimal strategies against climate risks

Vincent Gitz (), Jean-Charles Hourcade and Philippe Ciais ()
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Philippe Ciais: LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] - UVSQ - Université de Versailles Saint-Quentin-en-Yvelines - CEA - Commissariat à l'énergie atomique et aux énergies alternatives - Université Paris-Saclay - INSU - CNRS - Institut national des sciences de l'Univers - CNRS - Centre National de la Recherche Scientifique

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Abstract: This paper addresses the timing of the use of biological carbon sequestration and its capacity to alleviate the carbon constraint on the energy sector. We constructed a stochastic optimal control model balancing the costs of fossil emission abatement, the opportunity costs of lands allocated to afforestation, and the costs of uncertain climate damages. We show that a minor part of the sequestration potential should start immediately as a ‘brake', slowing down both the rate of growth of concentrations and the rate of abatement in the energy sector, thus increasing the option value of the emission trajectories. But, most of the potential is put in reserve to be used as a ``safety valve'' after the resolution of uncertainty, if a higher and faster decarbonization is required : sequestration cuts off the peaks of costs of fossil abatement and postpones the pivoting of the energy system by up to two decades.

Keywords: séquestration biologique du carbone; cycle du carbone; dommages climatiques; contrôle optimal stochastique; système énergétique; biological carbon sequestration; carbon cycle; climate damages; optimal stochastic control; energy sector (search for similar items in EconPapers)
Date: 2006-02-28
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Journal Article: The Timing of Biological Carbon Sequestration and Carbon Abatement in the Energy Sector Under Optimal Strategies Against Climate Risks (2006) Downloads
Working Paper: The timing of biological carbon sequestration and carbon abatement in the energy sector under optimal strategies against climate risks (2005) Downloads
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