Enhanced weathering (EW) with crushed silicate rocks has been proposed as a potential form of carbon dioxide removal. This process requires relatively low capital cost, has high global implementation ...

River alkalinity enhancement (RAE) is a carbon dioxide removal (CDR) approach in which alkaline minerals are added to rivers to accelerate weathering reactions that neutralize acidity and increase alk...

Soil microbial responses to enhanced rock weathering (ERW) in agricultural systems remain poorly characterized, despite the known role of microbes in biogeochemical processes and mineral weathering. W...

Reaching net-zero emissions by 2050 requires both steep reductions in anthropogenic CO₂ and active carbon dioxide removal (CDR) to offset hard-to-abate sources, with CDR projected to account for rough...

Mangrove (re-)establishment, or mangrove reforestation and afforestation, is increasingly recognized as a nature-based carbon dioxide removal (CDR) approach with the potential to contribute to climate...

There is increasing evidence that carbon dioxide removal (CDR) strategies will play a significant role in global greenhouse gas management. Enhanced weathering (EW) is a CDR strategy with substantial ...

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 ...

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...

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...

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...

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...

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...

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...

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...

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 ...

Meeting food demand in the Global South requires smallholder yield intensification. Conventional intensification using synthetic fertilizers embeds significant greenhouse gas emissions and imposes cos...

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...

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...

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 ...

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...

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...

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....

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

Bagels and coffee for friends of CDRXIV — a preprint server and data repository for carbon dioxide removal research.

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...

At CDRXIV, we want to understand how carbon removal researchers think about preprints. Your responses to this survey will help us gather those perspectives. The results will be anonymized and shared p...

Accurate quantification of alkalinity export from the near-field zone remains a key bottleneck for monitoring, reporting, and verification (MRV) of carbon dioxide removal (CDR) through Enhanced Weathe...

At CDRXIV, we want to understand how carbon removal researchers think about preprints. Your responses to this survey will help us gather those perspectives. The results will be anonymized and shared p...

River-based alkalinity modifications represent potentially effective approaches for removing atmospheric CO₂ and mitigating anthropogenic climate change. Evaluating their effectiveness requires consid...

Over geologic timescales, the natural weathering of silicate minerals in soils and regolith regulates atmospheric CO₂. Although this process is slow relative to anthropogenic emissions, several strate...

Enhanced rock weathering (ERW) is a promising strategy for removing carbon dioxide from the atmosphere, yet field-scale observations suitable for evaluating ERW co-benefits related to soil-fertility i...

Ocean Alkalinity Enhancement (OAE) aims to mitigate climate change by increasing the chemical capacity of seawater to store anthropogenic CO2. OAE can be implemented through multiple pathways, each of...

The methods, quantity, and timing of carbon dioxide removal (CDR) is impacted by, and has implications for, decarbonising energy, land use change, agriculture, the earth system response, and global so...

Enhanced Rock Weathering (ERW)—the application of crushed silicate minerals to croplands—holds promise for drawing down excess atmospheric carbon dioxide through accelerated biological and chemical we...

Terrestrial enhanced weathering (EW) on agricultural land is a promising carbon dioxide removal (CDR) pathway with high potential to scale. Enhanced weathering also has the potential to provide signif...

Enhanced Rock Weathering (ERW) is a promising negative emission technology that can simultaneously sequester atmospheric CO₂ and improve agricultural productivity. While its efficacy has been demonstr...

Enhanced rock weathering with crushed silicates is often considered as an alternative to agricultural liming for soil pH management and carbon dioxide removal. But swapping carbonates for silicates do...

How we built our platform for research in carbon dioxide removal using open source tools.

Ocean Alkalinity Enhancement (OAE) is a promising carbon dioxide removal (CDR) strategy with the theoretical potential to sequester gigatons of atmospheric CO₂ each year. Electrochemical OAE—where sea...