CO2-removal News

Peer-reviewed Publications

Zhang et al. (2025): Performance analysis of direct air capture-based renewable power-to-methanol (P2M) system in different regions of China: An annual intermittency investigation

Lanlan Zhang, Kai Han, Yongzhen Wang, Yibo Han, Tao Cui and Yuyao Xia, IN: Energy, https://doi.org/10.1016/j.energy.2025.139082

The direct air capture (DAC) integrated power-to-methanol (P2M) is a promising approach to reverse the carbon emission and energy demand. However, the intermittent character of renewable power and low response speed of DAC bring operation challenge. To evaluate the overall performance under different response time-scale, in this study, the operation strategies based on DAC stages, the number of its units are proposed from the view of reducing the energy storage of battery (strategy Ⅰ) or enhancing the amount of methanol production (in strategy Ⅱ) according to the fluctuating renewable power. Then the annual overall system performance is further distinguished in regions located at Northwest China, which own excellent renewable energy resource and have unsatisfactory wind, solar power curtailment rate.

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Peer-reviewed Publications

Kasidoni et al. (2025): Interrelations Between the EU ETS Carbon Price and the Associated CCU and CDR Technologies Research

Maria S. Kasidoni, Konstantinos P. Christopoulos and Maria D. Loizidou, IN: Environmental Management, https://doi.org/10.1007/s10666-025-10069-3

The European Union Emissions Trading System (EU ETS) serves as an environmental policy tool that aims to reduce carbon emissions, but the potential impact of novel carbon management technologies on the carbon price itself remains largely unknown. The aim of this study is to investigate the interrelations between carbon capture and utilization (CCU) and carbon dioxide removal (CDR) technologies and the EU ETS carbon price. To this end, the authors analyze the relevant detrended time series to examine short-term relationships between energy stock prices, carbon management technologies, and the EU ETS price.

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Peer-reviewed Publications

Jin & Cao (2025): Simulated carbon cycle response to ocean iron fertilization and artificial ocean alkalinization

Xiao-Yu Jin and Long Cao, IN: Advances in Ocean Science and Limnology, https://doi.org/10.1016/j.aosl.2025.100717

Ocean iron fertilization (OIF) and artificial ocean alkalinization (AOA) are two proposed ocean-based carbon dioxide removal methods to mitigate the effects of anthropogenic climate change. In this study, the authors use an Earth system model of intermediate complexity to compare the effects of OIF and AOA on the ocean carbon cycle and ocean biogeochemistry under the RCP8.5 high-emission scenario. In these simulations, both OIF and AOA are applied uniformly over the global ocean.

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Peer-reviewed Publications

Lu et al. (2025): Key role of river deltas in carbon sequestration through biospheric organic carbon burial

Taian Lu, Thomas S. Bianchi, Michael R. Shields, Naishuang Bi, Xiao Wu, Limin Hu, Xiaoyan Ning and Houjie Wang, IN: Geology, https://doi.org/10.1130/G53573.1

Biospheric organic carbon (OC) burial and petrogenic OC oxidation are fundamental controls in the regulation of global CO₂ concentrations. River deltas are among the largest OC sinks in the ocean, storing substantial amounts of terrestrial OC originating from both the biosphere and lithosphere. However, the extent of biospheric and petrogenic OC storage in deltas remains poorly understood. Here, the authors quantified biospheric and petrogenic OC burial rates in a dynamic river delta, the Yellow River Delta, using geomorphology and carbon isotopic analyses.

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Peer-reviewed Publications

Schinteie et al. (2025): Beyond carbonate biomineralization: Why prokaryote-driven CO₂ sequestration demands holistic evaluation

Richard Schinteie, Veena Nagaraj, Linda Stalker, Nai Tran-Dinh and David Midgley, IN: Frontiers in Bioengineering and Biotechnology, https://doi.org/10.3389/fbioe.2025.1690042

Microbially induced carbonate precipitation (MICP) offers a promising biological approach to sequester atmospheric CO₂ as stable mineral carbonates, mitigating climate change impacts. This perspective highlights the complexity underpinning prokaryote-driven biomineralization processes, emphasizing the necessity for holistic evaluation beyond simple carbonate formation.

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Peer-reviewed Publications

Paulsen et al. (2025): Is solid calcium looping a scalable technology for mega-ton carbon dioxide removal?

M.M. Paulsen, S.G.R. Nielsen, F.J. Tilsted and T.H. Pedersen, IN: Journal of CO₂ Utilization, https://doi.org/10.1016/j.jcou.2025.103255

Atmospheric CO₂ removal at Gton scale is necessary to limit global temperature rise. This study provides essential insights into the energy, area, and water requirements of solid calcium looping for large-scale CO₂ removal, combining experimental results with an upscaled system context.

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Nature – Mariani et al. (2025): The combined impact of fisheries and climate change on future carbon sequestration by oceanic macrofauna

Gaël Mariani, Jérôme Guiet, Daniele Bianchi, Tim DeVries, Nicolas Barrier, Marc Troussellier and David Mouillot, IN: Nature Communications, https://doi.org/10.1038/s41467-025-64576-8

Although the role of marine macrofauna in the ocean carbon cycle is increasingly understood, the cumulative impacts of fisheries and climate change on this pathway remain overlooked. Here, using a marine ecosystem model, the authors estimate that each degree of warming reduces macrofauna biomass and carbon export by 4.2% and 2.46%, respectively.

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Science-Policy Documents

Galanti et al. (2025): Purity-Constrained TVSA Modeling of Lewatit VPOC 1065 for Direct Air Capture: Bridging Cured Thermodynamics, Process Design and Geometrical Analysis

Mattia Galanti, Kiia Kaaresvirta, Ivo Roghair and Martin van Sint Annaland, IN: ChemRxiv Preprint, https://doi.org/10.26434/chemrxiv-2025-8ms1s

This work develops a comprehensive temperature–vacuum swing adsorption modeling framework that unifies detailed adsorption thermodynamics for both dry and humid conditions, refined heat-transfer descriptions accounting for wall-driven regeneration, realistic treatment of auxiliary equipment, and explicit oxygen-purity constraints.

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Peer-reviewed Publications

Alamin et al. (2025): The Long-Term Impact of Direct Capture Approaches to Carbon Dioxide Removal

Al Jay Lan J. Alamin, Melquezedec James T. Cruz, Bryan S. Hernandez and Eduardo R. Mendoza, IN: arXiv Preprint, https://doi.org/10.48550/arXiv.2510.20593

Understanding the similarities and differences of the long term impact of different carbon dioxide removal (CDR) techniques is essential in determining the most effective and sustainable strategies to mitigate climate change. In particular, direct ocean capture (DOC) has emerged as a promising approach. In contrast to direct air capture (DAC) which separates carbon dioxide from the atmosphere, DOC performs the separation directly from seawater before storing it in geological reservoirs. In this study, the authors construct and analyze a kinetic system for CDR via DOC using chemical reaction network theory.

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Peer-reviewed Publications

Nature – Lyu & Li (2025): Scenario based assessment of carbon storage and habitat quality under land use change in Shandong Province China

Kechen Lyu and Zhengjun Li, IN: Scientific Reports, https://doi.org/10.1038/s41598-025-25097-y

Land-use change exerts a profound influence on ecosystem services (ES), and accurately assessing its spatiotemporal dynamics is essential for achieving regional sustainability. Taking Shandong Province as a case study, this research integrates the PLUS and InVEST models to simulate the impacts of land-use changes on carbon storage and habitat quality in Shandong Province between 2000 and 2020, and to project their dynamics under different scenarios for 2030. The InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) model was employed to reassess variations in carbon storage (CS) and habitat quality (HQ).

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