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Biogeosciences An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/bg-2018-500
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2018-500
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Ideas and perspectives 13 Dec 2018

Ideas and perspectives | 13 Dec 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Biogeosciences (BG).

Ideas and perspectives: Synergies from co-deployment of negative emission technologies

Thorben Amann and Jens Hartmann Thorben Amann and Jens Hartmann
  • Institute for Geology, Center for Earth System Research and Sustainability, Universität Hamburg, Germany

Abstract. Numerous publications propose the deployment of negative emission technologies, which intend to actively remove CO2 from the atmosphere with the goal to reach the 1.5° target as discussed by the IPCC. The increasing amount of scientific studies on the individual potential of different envisaged technologies and methods indicates, that no single method has enough capacities to mitigate the issue by itself. It is thus expected that technology portfolios are deployed. As some of them utilize the same environmental compartment, co-deployment effects are expected. Those effects are particularly important to evaluate with respect to additional CO2 uptake. Considering soils as one of the main affected compartments, we see a plethora of processes which can positively benefit from each other, canceling out negative side effects or increasing overall CO2 sequestration potentials. To derive more reliable estimates of negative emission potentials and to evaluate common effects on global carbon pools, it is now necessary to intensively study interrelated effects of negative emission technology deployment CO2 sequestration potentials while minimizing side effects.

Thorben Amann and Jens Hartmann
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Thorben Amann and Jens Hartmann
Thorben Amann and Jens Hartmann
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Short summary
With the recent publication of the IPCC special report on the 1.5° target and increased attention on carbon dioxide removal (CDR) technologies, we think it is time to advance from the current way to look at specific strategies forward to a more holistic CDR perspective, since multiple side effects may lead to additional CO2 uptake into different carbon pools. This paper explores potential co-benefits between terrestrial CDR strategies to facilitate a maximum CO2 sequestration effect.
With the recent publication of the IPCC special report on the 1.5° target and increased...
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