Publications

2025

  • Faucher, G., Haunost, M., Paul, A.J., Tietz, A.U.C., Riebesell, U. (2025) Growth response of Emiliania huxleyi to ocean alkalinity enhancement. Biogeosciences, 22, 405–415, DOI 10.5194/bg-22-405-2025
  • Ramírez, L., Pozzo-Pirotta, L. J., Trebec, A., Manzanares-Vázquez, V., Díez, J. L., Arístegui, J., Riebesell, U., Archer, S. D. and Segovia, M. (2025) Ocean Alkalinity Enhancement (OAE) does not cause cellular stress in a phytoplankton community of the sub-tropical Atlantic Ocean. Biogeosciences, 22, 1865–1886, DOI 10.5194/bg-22-1865-2025
  • Siebert, L., Wu, J., Bednarz, L. K., Keller, D. P. , Meier, F., Merk, C., Peterson, S. and Rickels, W. (2025) Meeting Carbon Dioxide Removal Demand in 2030: The Potential of Macroalgae Cultivation and Harvest. Open Access Journal of Ocean and Coastal Economics, 12 (1). Art.Nr.: 1. DOI 10.15351/2373-8456.1203
  • Suessle, P., Taucher, J. , Goldenberg, S., Baumann, M. , Spilling, K., Noche-Ferreira, A., Vanharanta, M. and Riebesell, U. (2025) Particle fluxes by subtropical pelagic communities under ocean alkalinity enhancement. Open Access Biogeosciences (BG), 22 (1). pp. 71-86. DOI 10.5194/bg-22-71-2025
  • Wey, H. W. , Moustakis, Y., Nützel, T., Oschlies, A. , Schwinger, J., Hajima, T., Fisher, R., Ziehn, T., Liddicoat, S. K., Kemena, T. P. and Keller, D. (2025) CMIP6 Models agree on similar carbon cycle feedbacks between enhancing terrestrial and marine carbon sinks. Open Access Environmental Research Letters, 20(5) . Art.Nr. 054029. DOI 10.1088/1748-9326/adc617

2024

  • De Pryck, K. and Boettcher, M. (2024) The rise, fall and rebirth of ocean carbon sequestration as a climate ‘solution’. Global Environmental Change, 85 . Art.Nr. 102820. DOI 10.1016/j.gloenvcha.2024.102820
  • Ferderer, A., Schulz, K. G., Riebesell, U., Baker, K. G., Chase, Z. and Bach, L. T. (2024) Investigating the effect of silicate- and calcium-based ocean alkalinity enhancement on diatom silicification. Biogeosciences (BG), 21 (11). pp. 2777-2794. DOI 10.5194/bg-21-2777-2024
  • Goldenberg, S. U., Riebesell, U., Brüggemann, D., Börner, G., Sswat, M., Folkvord, A., Couret, M., Spjelkavik, S., Sanchez, N. S., Jaspers, C. and Moyano, M. (2024) Viability of coastal fish larvae under ocean alkalinity enhancement: from organisms to communities. Biogeosciences (BG), 21 (20). pp. 4521–4532. DOI 10.5194/bg-21-4521-2024
  • Gonzalez-Santana, D., Segovia, M., Gonzalez-Dávila, M., Ramírez, L., Gonzalez, A. G., Pozzo-Pirotta, L. J., Arnone, V., Vazquez, V., Riebesell, U. and Santana-Casiano, J. M. (2024) Ocean alkalinity enhancement using sodium carbonate salts does not lead to measurable changes in Fe dynamics in a mesocosm experiment. Biogeosciences, 21 (11). pp. 2705-2715. DOI 10.5194/bg-21-2705-2024
  • Jeltsch-Thömmes, A., Tran, G., Lienert, S., Keller, D. P., Oschlies, A. and Joos, F. (2024) Earth system responses to carbon dioxide removal as exemplified by ocean alkalinity enhancement: tradeoffs and lags. Environmental Research Letters, 19 (5). Art.Nr. 054054. DOI 10.1088/1748-9326%2Fad4401
  • Marín-Samper, L., Arístegui, J., Hernández-Hernández, N., Ortiz, J., Archer, S. D., Ludwig, A. and Riebesell, U. (2024) Assessing the impact of CO2-equilibrated ocean alkalinity enhancement on microbial metabolic rates in an oligotrophic system. Biogeosciences, 21 (11). pp. 2859-2876. DOI 10.5194/bg-21-2859-2024
  • Marín-Samper, L., Arístegui, J., Hernández-Hernández, N. and Riebesell, U. (2024) Responses of microbial metabolic rates to non-equilibrated silicate vs calcium-based ocean alkalinity enhancement. Biogeosciences, 21, 5707–5724. DOI 10.5194/bg-21-5707-2024
  • Nawaz, S., and Lezaun, J. (2024) Grappling with a sea change: Tensions in expert imaginaries of marine carbon dioxide removal. Global Environmental Change, 85, 102806. DOI 10.1016/j.gloenvcha.2024.102806
  • Paul, A. J., Haunost, M., Goldenberg, S. U., Hartmann, J., Sanchez, N. S., Schneider, J., Suitner, N. and Riebesell, U. (submitted in 2024) Ocean alkalinity enhancement in an open ocean ecosystem: Biogeochemical responses and carbon storage durability. EGUsphere [preprint] DOI 10.5194/egusphere-2024-417
  • Rickels, W., Meier, F., Peterson, S., Rühland, S., Thube, S., Karstensen, J., Posern, C., Wolff, C., Vafeidis, A. T., Grasse, P. and Quaas, M. (2024) The ocean carbon sink enhances countries’ inclusive wealth and reduces the cost of national climate policies. Open Access Communications Earth & Environment, 5 . Art.Nr. 513. DOI 10.1038/s43247-024-01674-3
  • Rickels, W., Rischer, C., Schenuit, F., Peterson, S. (2024) Mögliche Effizienzgewinne durch die Einführung eines länderübergreifenden Emissionshandels für den Gebäude- und Straßenverkehrssektor in der Europäischen Union. Perspektiven der Wirtschaftspolitik 25(1): 70-80, DOI 10.1515/pwp-2023-0022
  • Sánchez, N., Goldenberg S. U., Brüggemann, D., Jasper, D., Taucher, J. and Riebesell, U. (2024) Plankton food web structure and productivity under ocean alkalinity enhancement. Sci. Adv., 10, eado0264, DOI 10.1126/sciadv.ado0264
  • Schaber, T., Ekholm, T., Merikanto, J., and Partanen, A.-I. (2024) Prudent carbon dioxide removal strategies hedge against high climate sensitivity. Commun. Earth Environ., 5, 285, https://doi.org/10.1038/s43247-024-01456-x
  • Schwinger, J., Bourgeois, T. and Rickels, W. (2024): On the emission-path dependency of the efficiency of ocean alkalinity enhancement. Env. Res. Letters, 19, 074067, DOI 10.1088/1748-9326/ad5a27
  • Suitner, N., Faucher, G., Lim, C., Schneider, J., Moras, C. A., Riebesell, U., and Hartmann, J. (2024): Ocean alkalinity enhancement approaches and the predictability of runaway precipitation processes – Results of an experimental study to determine critical alkalinity ranges for safe and sustainable application scenarios, Biogeosciences, 21, 4587–4604, DOI 10.5194/bg-21-4587-2024
  • Tivig, M., Keller, D. P. and Oschlies, A. (2024) Riverine nutrient impact on global ocean nitrogen cycle feedbacks and marine primary production in an Earth system model. Biogeosciences, 21, 4469–4493, DOI 10.5194/bg-21-4469-2024
  • Valenzuela, J. M., and Lezaun, J. (2024) Publics and counter-publics of net-zero. Futures, 156, 103322. DOI 10.1016/j.futures.2024.103322
  • Xin, X., Goldenberg, S. U., Taucher, J., Stuhr, A., Arístegui, J. and Riebesell, U. (2024) Resilience of Phytoplankton and Microzooplankton Communities under Ocean Alkalinity Enhancement in the Oligotrophic Ocean. Environmental Science & Technology, 58 (47). pp. 20918-20930. DOI 10.1021/acs.est.4c09838

2023

  • Boettcher, M., Chai, F., Conathan, M., Cooley, S., Keller, D. P., Klinsky, S., et al. (2023) A Code of Conduct for Marine Carbon Dioxide Removal Research. The Aspen Institute, Energy and Environment Program, 44. https://bityl.co/OdEv
  • Campbell, J. S., Bastianini, L., Buckman, J., Bullock, L., Foteinis, S., Furey, V., … and Renforth, P. (2023) Measurements in Geochemical Carbon Dioxide Removal. Heriot-Watt University, DOI 10.17861/2GE7-RE08
  • Clarkson, M. O., Larkin, C., Swoboda, P., Reershemius, T., Suhrhoff, J. T., Maesano, C. N., and Campbell, J. (2023) A Review of Measurement for Quantification of Carbon Dioxide Removal by Enhanced Weathering in Soil. Frontiers in Climate, 6:1345224., DOI 10.3389/fclim.2024.1345224
  • Eisaman, M. D., Geilert, S. , Renforth, P., Bastianini, L., Campbell, J., Dale, A. W., Foteinis, S., Grasse, P., Hawrot, O., Löscher, C. R., Rau, G. H. and Rønning, J. (2023) Assessing the technical aspects of ocean-alkalinity-enhancement approaches. State Planet: SP, 2-oae2023 (Chapter 3). pp. 1-29, DOI 10.5194/sp-2-oae2023-3-2023
  • Foteinis, S., Campbell, J.S. and Renforth, P. (2023) Life Cycle Assessment of Coastal Enhanced Weathering for Carbon Dioxide Removal from Air. Environmental Science & Technology 57 (15), 6169-6178, DOI 10.1021/acs.est.2c08633
  • Hartmann, J., Suitner, N., Lim, C., Schneider, J., Marín-Samper, L., Arístegui, J., Renforth, P., Taucher, J., and Riebesell, U. (2023) Stability of alkalinity in Ocean Alkalinity Enhancement (OAE) approaches – consequences for durability of CO2 storage. BG, 20, 781–802, DOI 10.5194/bg-20-781-2023
  • Hinrichs, C., Köhler, P., Völker, C., and Hauck, J. (2023) Alkalinity biases in CMIP6 Earth System Models and implications for simulated CO2 drawdown via artificial alkalinity enhancement. Biogeosciences, 20, 3717–3735, 2023, DOI 10.5194/bg-20-3717-2023
  • Khosla, R., Lezaun, J., McGivern, A., and Omukuti, J. (2023) Can ‘Net Zero’ still be an instrument of climate justice? Environ. Res. Lett., 18, 061001, DOI 10.1088/1748-9326/acd130
  • Masindi, V., Foteinis, S., Renforth, P., and Chatzisymeon, E. (2023) Wastewater treatment for carbon dioxide removal. ACS omega, 8(43), 40251-40259, DOI 10.1021/acsomega.3c04231
  • Nawaz, S., Lezaun, J., Valenzuela, J. M., and Renforth, P. (2023) Broaden Research on Ocean Alkalinity Enhancement to Better Characterize Social Impacts. Environ. Sci. Technol., 57, 8863−8869, DOI 10.1021/acs.est.2c09595
  • Oschlies, A., Bach, L. T. , Rickaby, R., Satterfield, T., Webb, R. M. and Gattuso, J. P. (2023) Climate targets, carbon dioxide removal and the potential role of Ocean Alkalinity Enhancement. Copernicus Publications, State Planet, 2-oae2023, (Chaper 1). pp. 1-9, DOI 10.5194/sp-2-oae2023-1-2023
  • Rickels, W., Rischer, C., Schenuit, F., and Peterson, S. (2023) Potential efficiency gains from the introduction of an emissions trading system for the buildings and road transport sectors in the European Union, Kiel Working Paper No. 2249, HDL 10419/273080
  • Riebesell, U., Basso, D., Geilert, S. , Dale, A. W. and Kreuzburg, M. (2023) Mesocosm experiments in ocean alkalinity enhancement research. State Planet : SP, 2-oae2023 (Chapter 6). pp. 1-14, DOI 10.5194/sp-2-oae2023-6-2023
  • Röschel, L., and Neumann, B. (2023) Oceanbased negative emissions technologies: a governance framework review. Front. Mar. Sci. 10:995130, DOI 10.3389/fmars.2023.995130
  • Santana-Falcón, Y., Yamamoto, A., Lenton, A., Jones,C.D., Burger, F.A., John, J.G., Tjiputra, J., Schwinger, J., Kawamiya, M., Frölicher, T.L., Ziehn, T., and Séférian, R. (2023) Irreversible loss in marine ecosystem habitability after a temperature overshoot. Commun. Earth Environ., 4, 343, DOI 10.1038/s43247-023-01002-1
  • Spilling, K., Heinemann, M., Vanharanta, M., Baumann, M., Noche-Ferreira, A., Suessle, P. and Riebesell, U. (2023) Respiration rate scales inversely with sinking speed of settling marine aggregates. PLoS ONE, 18 (3). Art.Nr. e0282294. DOI 10.1371/journal.pone.0282294
  • Wu, J., Keller, D. P., and Oschlies, A. (2023) Carbon dioxide removal via macroalgae open-ocean mariculture and sinking: an Earth system modeling study. Earth Syst. Dynam., 14, 185–221, DOI 10.5194/esd-14-185-2023

2022

  • Bertini, L. and Tjiputra, J. (2022) Biogeochemical timescales of climate change onset and recovery in the North Atlantic interior under rapid atmospheric CO2 forcing. Journal of Geophysical Research: Oceans, 127, e2021JC017929. DOI 10.1029/2021JC017929
  • Campbell, J.S., Foteinis, S., Furey, V., Hawrot, O., Pike, D., Aeschlimann, S., (…) and Renforth, P. (2022) Geochemical Negative Emissions Technologies: Part I. Review. Frontiers in Climate, 4, DOI 10.3389/fclim.2022.879133
  • Chien, C. T., Durgadoo, J. V., Ehlert, D., Frenger, I., Keller, D. P., Koeve, W., … and Oschlies, A. (2022) FOCI-MOPS v1–integration of marine biogeochemistry within the Flexible Ocean and Climate Infrastructure version 1 (FOCI 1) Earth system model. Geoscientific Model Development, 15(15), 5987-6024, DOI 10.5194/gmd-15-5987-2022
  • Fankhauser, S., Smith, S.M., Allen, M., (…), Javier Lezaun, (…) and Wetzer, T. (2022) The meaning of net zero and how to get it right. Nat. Clim. Chang. 12, 15–21, DOI 10.1038/s41558-021-01245-w
  • Foteinis, S., Andresen, J., Campo, F., Caserini, S., and Renforth, P. (2022) Life cycle assessment of ocean liming for carbon dioxide removal from the atmosphere. Journal of Cleaner Production, 133309, DOI 10.1016/j.jclepro.2022.133309
  • Hawrot, O., Campbell, J. S., Buckingham, F., and Renforth, P. (2022) Geochemical Negative Emission Technologies, Greenhouse Gas Removal Technologies, Mai Bui, Niall Mac Dowell, DOI 10.1039/9781839165245
  • Maesano C. N., Campbell, J. S., Foteinis, S., Furey, V., Hawrot, O., Pike, D., Aeschlimann, S., Reginato, P. L., Goodwin, D. R., Looger, L. L., Boyden, E. S., and Renforth, P. (2022) Geochemical Negative Emissions Technologies: Part II. Roadmap. Front. Clim., 4, DOI 10.3389/fclim.2022.945332
  • Meier, F., Rickels, W., Quaas, M., and Traeger, C. (2022) Carbon dioxide removal in a global analytic climate economy, Kiel Working Paper, No. 2227, Kiel Institute for the World Economy (IfW Kiel), Kiel, HDL 10419/261385
  • Meier, F., and Traeger, C. P. (2022) SolACE – Solar Geoengineering in an Analytic Climate Economy (August 6, 2022) DOI 10.2139/ssrn.3958821
  • Merk, C., Grunau, J., Riekhof, M. C., and Rickels, W. (2022) The need for local governance of global commons: The example of blue carbon ecosystems. Ecological Economics, 201, 107581, DOI 10.1016/j.ecolecon.2022.107581
  • Næss, J. S., Iordan, C. M., Muri, H., and Cherubini, F. (2022) Energy potentials and water requirements from perennial grasses on abandoned land in the former Soviet Union. Environmental Research Letters, 17(4), 045017, DOI 10.1088/1748-9326/ac5e67
  • Paschen, M., Meier, F., & Rickels, W. (2022) Accounting for terrestrial and marine carbon sink enhancement. Kiel Working Paper, No. 2204, Kiel Institute for the World Economy (IfW), Kiel, HDL 10419/264190
  • Schwinger, J., Asaadi, A., Steinert, N. J., and Lee, H. (2022) Emit now, mitigate later? Earth system reversibility under overshoots of different magnitudes and durations. Earth Syst. Dynam., 13, 1641–1665, DOI 10.5194/esd-13-1641-2022
  • Seifert, M., Nissen, C., Rost., B. and Hauck, J. (2022) Cascading effects augment the direct impact of CO2 on phytoplankton growth in a biogeochemical model. Elementa: Science of the Anthropocene 10(1): 00104, DOI 10.1525/elementa.2021.00104

2021

  • Keller D.P., Brent K., Bach L.T., Rickles W. (2021) Editorial: The Role of Ocean-Based Negative Emission Technologies for Climate Mitigation. Front. Clim. 3:743816. DOI 10.3389/fclim.2021.743816
  • Lezaun J. (2021) Hugging the Shore: Tackling Marine Carbon Dioxide Removal as a Local Governance Problem. Front. Clim. 3:684063. DOI 10.3389/fclim.2021.684063
  • Renforth P. and Campbell J.S. (2021) The role of soils in the regulation of ocean acidification. Phil. Trans. R. Soc. B 376: 20200174. 20200174. DOI 10.1098/rstb.2020.0174
  • Tivig, M., Keller, D. P., and Oschlies, A. (2021) Riverine nitrogen supply to the global ocean and its limited impact on global marine primary production: a feedback study using an Earth system model. Biogeosciences, 18, 5327–5350, DOI 10.5194/bg-18-5327-2021

2020

  • Bertram C. and Merk C. (2020) Public perceptions of ocean-based carbon dioxide removal technologies: the nature – engineering divide. Front. Clim. 2:594194. DOI 10.3389/fclim.2020.594194