CDRXIV
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A public repository for preprint articles and datasets on Carbon Dioxide Removal (CDR). Developed by @carbonplan.org. https://cdrxiv.org/
Metal Accumulation Risks in Enhanced Rock Weathering: Risk Assessment Framework and Recommendations. cdrxiv.org/preprint/546
Metal Accumulation Risks in Enhanced Rock Weathering: Risk Assessment Framework and Recommendations – CDRXIV
Enhanced rock weathering (ERW) has emerged as a promising carbon dioxide removal (CDR) pathway that could mitigate climate change while improving agricultural soils. However, as the rocks used in ERW ...
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An Ecosystem of Carbon Dioxide Removal Reviews – Part 3: Enhanced Weathering. cdrxiv.org/preprint/417
An Ecosystem of Carbon Dioxide Removal Reviews – Part 3: Enhanced Weathering – CDRXIV
Enhanced Weathering (EW) is an emerging Carbon Dioxide Removal (CDR) approach within a growing portfolio of mitigation strategies, offering the potential for durable CDR alongside agronomic co-benefit...
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River alkalinity enhancement for scalable and energy-efficient geochemical carbon dioxide removal: potential, costs and risks? cdrxiv.org/preprint/539
River alkalinity enhancement for scalable and energy-efficient geochemical carbon dioxide removal: potential, costs and risks? – CDRXIV
Gigaton-scale carbon dioxide removal (CDR) from the atmosphere will be necessary to limit global warming to below 2 °C. Current approaches, such as afforestation or biochar, are constrained by land an...
cdrxiv.org
Significant Scope for Improvement of Soil Acidity Management in US Croplands. cdrxiv.org/preprint/535
Significant Scope for Improvement of Soil Acidity Management in US Croplands – CDRXIV
Robust soil pH management in agricultural lands is critically important for crop yields and can lead to significant greenhouse gas reductions in agricultural systems. However, costs and logistical con...
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Accounting Methods Dictate Carbon Removal Credit Integrity and Outcomes. cdrxiv.org/preprint/514
Accounting Methods Dictate Carbon Removal Credit Integrity and Outcomes – CDRXIV
Carbon dioxide removal (CDR) is distinct from emissions offsets. CDR commands a price premium relative to offsets, yet some accounting methods blur the line between them. This paper compares the proje...
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Cation trapping by biochar reduces carbon removal efficiency. cdrxiv.org/preprint/533
Cation trapping by biochar reduces carbon removal efficiency – CDRXIV
Biochar may be a scalable and cost-effective means of atmospheric carbon dioxide removal. However, frameworks for quantifying the effectiveness of this carbon removal pathway are still under developme...
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Delayed climate benefits and toxicity risks could hinder the sustainable deployment of enhanced weathering. cdrxiv.org/preprint/531
Delayed climate benefits and toxicity risks could hinder the sustainable deployment of enhanced weathering – CDRXIV
Enhanced weathering has gained attention as a promising CO2 removal (CDR) practice, but previous life cycle analyses rely on theoretical assumptions that differ substantially from experimental observa...
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An evaluation of permitting avenues for deploying carbon mineralization projects with and without acid pre-treatment. cdrxiv.org/preprint/529
An evaluation of permitting avenues for deploying carbon mineralization projects with and without acid pre-treatment – CDRXIV
Carbon mineralization is an emerging carbon capture and storage (CCS) technology that offers permanent sequestration through the conversion of CO2 into stable carbonate minerals. Despite its potential...
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Impacts of enhanced rock weathering on soil sponge function: a global synthesis of soil physical and hydrological responses. cdrxiv.org/preprint/527
Impacts of enhanced rock weathering on soil sponge function: a global synthesis of soil physical and hydrological responses – CDRXIV
Enhanced rock weathering (ERW) involves the application of finely ground silicate minerals to soils, where mineral dissolution can alter soil chemistry, structure, and hydrological functioning. While ...
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Increased yields for smallholder farmers from enhanced rock weathering. cdrxiv.org/preprint/502
Increased yields for smallholder farmers from enhanced rock weathering – CDRXIV
Meeting food demand in the Global South requires smallholder yield intensification. Conventional intensification using synthetic fertilizers embeds significant greenhouse gas emissions and imposes cos...
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How carbon dioxide removal lost its way: tracing the origin and transformation of the 10-Gt durable CDR target. cdrxiv.org/preprint/330
How carbon dioxide removal lost its way: tracing the origin and transformation of the 10-Gt durable CDR target – CDRXIV
Durably removing ~10 Gt CO₂ yr⁻¹ by 2050 is widely treated as necessary to meet Paris temperature goals. Tracing CDR magnitude claims across ~50 sources spanning five sectors, I found this benchmark d...
cdrxiv.org
An annotated literature database to support research on marine carbon dioxide removal (mCDR) and fisheries impacts. cdrxiv.org/preprint/519
An annotated literature database to support research on marine carbon dioxide removal (mCDR) and fisheries impacts – CDRXIV
As atmospheric carbon dioxide concentrations rise, research interest in marine carbon dioxide removal (mCDR) is accelerating due to the ocean’s role in absorbing carbon dioxide from the atmosphere. Wh...
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Sustained Neutralization of the Warming Response to Emissions through a Portfolio of GHG Mitigation Strategies. cdrxiv.org/preprint/521
Sustained Neutralization of the Warming Response to Emissions through a Portfolio of GHG Mitigation Strategies – CDRXIV
Both emissions abatement and carbon dioxide removal will play a critical role in achieving a global net-zero scenario under which temperatures are stabilized. In the near term, organizations pursuing ...
cdrxiv.org
A framework for understanding efficiency losses of Ocean Alkalinity Enhancement. cdrxiv.org/preprint/517
A framework for understanding efficiency losses of Ocean Alkalinity Enhancement – CDRXIV
Ocean alkalinity enhancement (OAE) is a proposed carbon dioxide removal (CDR) approach in which alkalinity is added to the surface ocean to facilitate atmospheric CO2 uptake and long-term storage in t...
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Integrity gaps in certification and MRV across aviation mitigation policies. cdrxiv.org/preprint/515
Integrity gaps in certification and MRV across aviation mitigation policies – CDRXIV
The mitigation of aviation’s climate impacts hinges on upstream emission reductions via sustainable aviation fuels and on out‑of‑sector solutions such as carbon offsetting and removals. Their credibil...
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Carbon dioxide removal efficiency of co-applied and co‑pyrolyzed feedstocks for enhanced rock weathering and biochar in a sandy soil. cdrxiv.org/preprint/511
Carbon dioxide removal efficiency of co-applied and co-pyrolyzed feedstocks for enhanced rock weathering and biochar in a sandy soil – CDRXIV
Enhanced rock weathering (ERW) and pyrogenic carbon capture and storage (PyCCS) are promising land based approaches for carbon dioxide removal (CDR), yet their co-deployment remains poorly understood....
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Olivine-based marine carbon dioxide removal field trial shows no adverse effects on the benthic community. cdrxiv.org/preprint/327
Olivine-based marine carbon dioxide removal field trial shows no adverse effects on the benthic community – CDRXIV
Marine enhanced rock weathering (mERW) with olivine is a promising carbon dioxide removal (CDR) strategy, but its ecological impacts remain uncertain. In 2022, a first-of-its-kind mERW field trial was...
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A Modular BECCS Process Chain Framework from Biomass to Carbon Removal. cdrxiv.org/preprint/508
A Modular BECCS Process Chain Framework from Biomass to Carbon Removal – CDRXIV
Bioenergy with Carbon Capture and Storage (BECCS) is widely discussed as a key pathway for achieving net-negative greenhouse gas emissions. However, the complexity and context-specific nature of BECCS...
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On the pH-dependent export of anthropogenic alkalinity in pore water through soil: Implications for enhanced rock weathering. cdrxiv.org/preprint/489
On the pH-dependent export of anthropogenic alkalinity in pore water through soil: Implications for enhanced rock weathering – CDRXIV
Enhanced rock weathering (ERW) is a highly scalable carbon dioxide removal (CDR) strategy. In ERW deployments, pulverized mineral feedstock is spread on agricultural or managed lands. Upon the dissol...
cdrxiv.org
Institutions submitting to CDRXIV can build up a substantial body of work over time — but there hasn’t been an easy way to share that work as a collection. Channels fix that, making an institution’s submissions viewable in one place. We’re launching this new feature with three founding channels.
A Novel Soil Porewater Extraction Technique for Enhanced Rock Weathering Products: SATuration - Centrifugation. cdrxiv.org/preprint/496
A Novel Soil Porewater Extraction Technique for Enhanced Rock Weathering Products: SATuration - Centrifugation – CDRXIV
Enhanced Rock Weathering (ERW) involves the application of crushed silicate-rich minerals to agricultural soils as a promising Carbon Dioxide Removal (CDR) strategy, with potential benefits for soil h...
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Evaluating trace-metal responses to field deployment of enhanced rock weathering across agricultural and riparian soils. cdrxiv.org/preprint/463
Evaluating trace-metal responses to field deployment of enhanced rock weathering across agricultural and riparian soils – CDRXIV
Enhanced rock weathering (ERW) is proposed for carbon dioxide removal, but responsible field deployment requires careful evaluation of potential trace-metal risks. We applied finely crushed, Fe–Al-ric...
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Enhanced rock weathering for improved smallholder farmer welfare: An at-scale case study for rice agriculture in India. cdrxiv.org/preprint/483
Enhanced rock weathering for improved smallholder farmer welfare: An at-scale case study for rice agriculture in India – CDRXIV
Smallholder farmers produce approximately one-third of the world’s food supply, but face persistent challenges from soil degradation, limited access to affordable inputs and growing climate variabilit...
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Bacillus subtilis-mediated weathering of basalt revealed through sporulation. cdrxiv.org/preprint/480
Bacillus subtilis-mediated weathering of basalt revealed through sporulation – CDRXIV
Silicate rock weathering is a naturally occurring process that provides a long-term sink for atmospheric CO2, but its natural rates are too slow on human-relevant timescales to offset anthropogenic em...
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Closing the carbon removal attribution gap requires an objective atmospheric basis. cdrxiv.org/preprint/303
Closing the carbon removal attribution gap requires an objective atmospheric basis – CDRXIV
Efforts to integrate carbon dioxide removal (CDR) into climate policy, markets, and inventories are advancing rapidly, but without a unified accounting logic to attribute atmospheric impacts. Existing...
cdrxiv.org
From silicates to soil carbonates: Tracing the cation budget of microbially-accelerated weathering. cdrxiv.org/preprint/464
From silicates to soil carbonates: Tracing the cation budget of microbially-accelerated weathering – CDRXIV
Microbial carbon dioxide mineralization (MCM) is a promising strategy for soil-based carbon dioxide removal (CDR) that leverages beneficial soil microbes applied in agricultural fields to promote nati...
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Consistent temporal accounting supports credible CDR use. cdrxiv.org/preprint/302
Consistent temporal accounting supports credible CDR use – CDRXIV
Carbon dioxide removal (CDR) is increasingly used to support national targets and corporate net-zero commitments, yet the timing of atmospheric drawdown remains poorly represented in carbon accounting...
cdrxiv.org
Integrating experiments and models to unravel interactions between soil organic matter and enhanced weathering. cdrxiv.org/preprint/473
Integrating experiments and models to unravel interactions between soil organic matter and enhanced weathering – CDRXIV
Enhanced weathering (EW) aims to accelerate rock dissolution to sequester atmospheric CO2. Here, we investigated key uncertainties in modelling C sequestration through EW by comparing a coupled inorga...
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For all fans of open science — find us at AGU tomorrow morning for free bagels, coffee, and beignets! Pod 1, 8:30-9:30am CT agu.confex.com/agu/agu25/me...
CDRXIV Breakfast
Bagels and coffee for friends of CDRXIV — a preprint server and data repository for carbon dioxide removal research.
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Integrated Thermal and Phyto-Remediation of Agricultural Soils Impacted by PFAS. cdrxiv.org/preprint/471
Integrated Thermal and Phyto-Remediation of Agricultural Soils Impacted by PFAS – CDRXIV
Widespread biosolids application has introduced per- and polyfluoroalkyl substances (PFAS) into millions of hectares of agricultural soils, yet existing remediation methods are costly, carbon intensiv...
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