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A Comprehensive Assessment of Carbon Dioxide Removal Options for Germany
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  • Malgorzata Borchers,
  • Johannes Förster,
  • Daniela Thrän,
  • Silke Beck,
  • Terese Thoni,
  • Klaas Korte,
  • Erik Gawel,
  • Till Markus,
  • Romina Schaller,
  • Imke Rhoden,
  • Yaxuan Chi,
  • Nicolaus Dahmen,
  • Roland Dittmeyer,
  • Tobias Dolch,
  • Christian Dold,
  • Michael Herbst,
  • Dominik Heß,
  • Aram Kalhori,
  • Ketil Koop-Jakobsen,
  • Zhan Li,
  • Andreas Oschlies,
  • Thorsten B.H. Reusch,
  • Torsten Sachs,
  • Cornelia Schmidt-Hattenberger,
  • Angela Stevenson,
  • Jiajun WU,
  • Christopher Yeates,
  • Nadine Mengis
Malgorzata Borchers
Helmholtz Centre for Environmental Research GmbH (UFZ)

Corresponding Author:[email protected]

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Johannes Förster
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Daniela Thrän
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Silke Beck
Helmholtz-Centre for Environmental Research - UFZ
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Terese Thoni
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Klaas Korte
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Erik Gawel
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Till Markus
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Romina Schaller
Helmholtz Centre for Environmental Research GmbH (UFZ)
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Imke Rhoden
Forschungszentrum Jülich GmbH (FZJ)
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Yaxuan Chi
Karlsruhe Institute of Technology (KIT)
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Nicolaus Dahmen
Karlsruhe Institute of Technology (KIT)
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Roland Dittmeyer
Karlsruher Institut für Technologie (KIT)
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Tobias Dolch
Wadden Sea Station Sylt, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI)
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Christian Dold
Aarhus University
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Michael Herbst
Forschungszentrum Jülich
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Dominik Heß
Karlsruher Institut für Technologie (KIT)
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Aram Kalhori
GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam,
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Ketil Koop-Jakobsen
Wadden Sea Station Sylt, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI)
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Zhan Li
GFZ German Research Centre for Geosciences
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Andreas Oschlies
Helmholtz-Zentrum für Ozeanforschung Kiel, GEOMAR
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Thorsten B.H. Reusch
GEOMAR Helmholtz Centre for Ocean Research Kiel
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Torsten Sachs
GFZ German Research Centre for Geosciences
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Cornelia Schmidt-Hattenberger
GFZ German Research Centre for Geosciences
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Angela Stevenson
GEOMAR Helmholtz Centre for Ocean Research Kiel
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Jiajun WU
GEOMAR Helmholtz Centre for Ocean Research Kiel
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Christopher Yeates
GFZ German Research Centre for Geosciences
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Nadine Mengis
GEOMAR Helmholtz Centre for Ocean Research Kiel
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Abstract

To reach their net-zero targets, countries will have to compensate hard-to-abate CO2 emissions through carbon dioxide removal (CDR). Yet, current assessments rarely include socio-cultural or institutional aspects or fail to contextualize CDR options for implementation.
Here we present a context-specific feasibility assessment of CDR options for the example of Germany. We assess fourteen CDR options, including three chemical carbon capture options, six options for bioenergy combined with carbon capture and storage (BECCS), and five options that aim to increase ecosystem carbon uptake. The assessment addresses technological, economic, environmental, institutional, social-cultural and systemic considerations using a traffic-light system to evaluate implementation opportunities and hurdles.
We find that in Germany CDR options like cover crops or seagrass restoration currently face comparably low implementation hurdles in terms of technological, economic, or environmental feasibility and low institutional or social opposition but show comparably small CO2 removal potentials. In contrast, some BECCS options that show high CDR potentials face significant techno-economic, societal and institutional hurdles when it comes to the geological storage of CO2.
While a combination of CDR options is likely required to meet the net-zero target in Germany, the current climate protection law includes a limited set of options. Our analysis aims to provide comprehensive information on CDR hurdles and possibilities for Germany for use in further research on CDR options, climate, and energy scenario development, as well as an effective decision support basis for various actors.
21 Nov 2023Submitted to ESS Open Archive
27 Nov 2023Published in ESS Open Archive