GLOSSARY
Alkaline Mineral- Minerals with high pH that neutralize CO₂, promoting efficient CO₂ capture in ERW
Aquifer Storage- Storing CO₂ in deep saline aquifers, which have large storage potential for long-term containment
Basalt Powder Application- Spreading crushed basalt on soil to increase CO₂ absorption through chemical reactions with minerals
Biochar- Biochar is a charcoal residue made of carbon and ash from decomposition of incinerated biomass. It is a form of charcoal that is stored in the soil to remove carbon dioxide from the atmosphere.
Bioenergy with Carbon Capture and Storage (BECCS)- Bioenergy with carbon capture and storage, is another negative emissions technology. BECCS refers to the extraction of bioenergy from organic matter (biomass), then capturing and storing the carbon, and removing it from the atmosphere.
Buffering Capacity- The ability of soils and minerals to neutralize CO₂ acidity, enhanced through ERW
Caprock- An impermeable rock layer that prevents CO₂ from migrating upward, essential for secure CO₂ storage
Carbon Abatement- Reducing emissions at their source, often by switching to cleaner energy or improving efficiency
Carbon Capture Potential of ERW- The estimated CO₂ removal capacity of ERW based on rock type, environmental conditions, and land area
Carbon Intensity Reduction- Lowering the amount of CO₂ produced per unit of energy or product
Carbon Neutral- Carbon neutral is a term that describes an entity whose carbon dioxide emissions are equal to those it captures.
Carbon Neutral Supply Chain- A supply chain that offsets or minimizes all associated emissions through efficiency and offsets
Carbon Sinks- A carbon sink is any process that absorbs more carbon dioxide from the atmosphere than it emits. Carbon sinks are commonly natural ecosystems or organisms such as plants, oceans, soil, forests, peatlands, marshes, seagrass beds, mangroves and – more recently – algae ponds.
Carbon Storage Verification- Verifying the volume and permanence of CO₂ stored to confirm compliance with regulatory requirements.
Carbonate Formation- The end product of ERW, where CO₂ reacts with minerals to form stable carbonates
Carbonates and Bicarbonates- Compounds formed from CO₂ and minerals that store carbon stably in ERW processes
Cation Exchange Capacity (CEC)- Soil’s ability to hold onto cations, which can influence CO₂ capture efficiency in ERW
CBAM- Carbon Border Adjustment Mechanism: A tax or tariff imposed on imported goods based on their carbon intensity, designed to prevent carbon leakage and encourage global decarbonization.
CCF Company Carbon Footprint- A comprehensive measure of all greenhouse gas emissions produced by a company’s operations, including direct and indirect emissions.
CCS Carbon capture and sequestration – (CCS) often refers to capturing CO2 emissions at a point-source, like, for example flue gas. While CCS reduces emissions that newly enter the atmosphere, it does now remove existing atmospheric carbon dioxide. This means it is not considered carbon removal.
CCU Carbon capture and use (CCU) – is the process of capturing carbon dioxide and using it in the production of valuable services. CCU refers to both the use of carbon captured from the atmosphere, like DAC, and for the use of carbon captured from flue gas. CCU is only considered as carbon removal when the carbon dioxide is captured from the atmosphere and stored for a significant period of time.
CCUS- Combining the above two concepts, carbon capture and use or sequestration (CCUS) is a commonly used term that refers to both carbon capture and use (CCU) and carbon capture and sequestration (CCS). Usually, it refers to CCU or CCS used within fossil fuels or cement, rather than to carbon removal.
CDR – Carbon removal is the process of extracting CO2 from the atmosphere and storing it long term in soil or plants, oceans, rocks, or other sources such as long-lived products like cement, which can store the carbon dioxide for decades or even centuries.
Circular Economy- An economic model that reduces waste and emissions by keeping products and materials in use longer
CO₂ Saturation- The concentration of CO₂ in the storage formation, which affects the efficiency and security of storage.
CO₂ Storage Site Characterization- Assessing geological formations to confirm they can securely store CO₂, evaluating factors like rock permeability and caprock integrity
CRCF- Carbon Removal Certification Framework: A standard to evaluate and certify the effectiveness, durability, and quality of carbon removal projects.
DAC Direct air capture – (DAC) technologies extract CO2 directly from the atmosphere – or ambient air. DAC is still in its early development stages, with the first operational DAC machine installed in 2017. But the potential of DAC is huge.
DDAC- Decentralized Direct Air Capture (DDAC) is very similar to DAC, and is also relatively newly developed while showing great promise.
Dissolved Inorganic Carbon (DIC)- CO₂ dissolved in water that forms carbonates and bicarbonates through mineral interaction in ERW
Electrification of Processes – Replacing fossil fuel-based energy with electricity for processes to cut CO₂ emissions
ERW :Enhanced Rock Weathering- A process that involves spreading finely crushed minerals over land to accelerate natural weathering, which absorbs and stores CO₂ from the atmosphere.
Field Application Rate- The recommended amount of crushed rock to spread per area to maximize CO₂ capture
Geomechanical Stress – Stress on geological formations due to CO₂ injection, which must be managed to prevent fractures
Geomorphology Impact- The effect of ERW on landform and landscape changes due to the application of crushed rock
Green Hydrogen- Hydrogen produced from renewable sources, which emits zero CO₂ when used as a fuel
Hard-to-Abate Sectors- Industries that are challenging to decarbonize, such as steel, cement, and aviation
Hydraulic Fracturing (Fracking)- Using high-pressure fluids to create fractures in rock formations, sometimes used to enhance CO₂ storage capacity
Injection Well – Specialized wells designed for injecting CO₂ into deep rock formations for long-term storage
LCA Life Cycle Analysis- A methodology for assessing the total environmental impact of a product, process, or activity from raw material extraction to disposal.
Low-Carbon Technologies- Innovations such as renewables, electric vehicles, and carbon capture aimed at minimizing emissions
LULUCF Land Use, Land-Use Change, and Forestry- A sector that tracks and manages carbon emissions and removals associated with land management practices, forestry, and land-use changes.
MDL Method Detection Limit- The minimum concentration of a substance that can be reliably detected by a given analytical method under specific conditions.
Microseismic Monitoring- Detecting small seismic events around storage sites to assess potential for CO₂ migration
Mineral Carbon Sequestration- Long-term storage of CO₂ in carbonate minerals formed from weathered rock
Mineral Trapping- CO₂ reacts with minerals to form stable carbonates, permanently locking CO₂ in a solid state
Mineralization- Mineralization, in the world of carbon capture, is when carbon dioxide is turned into a solid mineral such as a carbonate, through a chemical reaction. Mineralization occurs when certain minerals inside rocks are exposed to atmospheric CO2. This carbon dioxide is then removed from the atmosphere and sequestered in solid carbonate form.
MRV- Measurement, Reporting, Verification: A structured system used to measure greenhouse gas emissions, report findings transparently, and verify the data’s accuracy for accountability.
Net-Zero Transition Pathways- Plans and actions to balance emissions with removals to achieve net-zero by mid-century
OKR Objectives and Key Results: A strategic framework for defining and tracking objectives (goals) and their measurable outcomes (results) within an organization.
Overburden- Layers of rock and soil above a CO₂ storage reservoir that help prevent leakage
PCF Product Carbon Footprint- A measure of the greenhouse gas emissions generated across the entire lifecycle of a product, from raw material extraction to end-of-life disposal.
Plume Migration- The spread of CO₂ within the storage reservoir, monitored to keep it within designated boundaries
Post-Injection Monitoring- Surveillance activities after CO₂ injection to ensure stored CO₂ remains contained and to detect potential leaks
Reservoir Integrity – Ensures CO₂ storage sites retain the gas without leakage over time, maintained through geological assessments and monitoring
Reservoir Pressure Management- Monitoring and managing pressure within the CO₂ reservoir to prevent rock fracturing
Residual Trapping – CO₂ gets trapped in pore spaces in the rock as the gas moves through a formation
Risk Assessment- Evaluating potential risks associated with CO₂ injection and storage, such as leakage or seismic activity
Saline Aquifer- A deep, porous rock formation filled with salty water, ideal for CO₂ storage
Sectoral Decarbonization- Targeting specific sectors like energy or transportation to reduce emissions with tailored approaches
Seismic Monitoring- Tracking seismic activity near storage sites to detect movement or changes in the underground CO₂ plume
SIA Self-Integrating Accumulator – A device or system designed for energy storage or process efficiency, often found in engineering or technical fields (context-specific).
Silicate Minerals- Minerals like olivine and basalt used in ERW that chemically bind CO₂ during weathering
Soil Amendment- The use of minerals like basalt in soil to improve soil health and capture CO₂
Soil Carbon Sequestration- Capturing CO₂ in soil through ERW, which enhances soil quality and stores carbon long-term
Solubility Trapping- CO₂ dissolves in underground water, preventing it from escaping back to the surface
Subsurface Monitoring- Techniques to observe CO₂ behavior underground, including pressure and chemical monitoring
Supercritical CO₂ Injection- Injecting CO₂ in a supercritical state to maximize storage efficiency in geological formations
Trapping Mechanisms- Methods that help CO₂ stay in place underground, including structural, residual, solubility, and mineral trapping
VCO Voluntary Carbon Offset- A credit representing one ton of CO₂ removed or avoided, purchased to compensate for emissions, often linked to renewable energy or reforestation projects.
Sustainable aviation fuel (eSAF) – eSAF is a synthetic aviation fuel, which can be produced by combining hydrogen from renewable energy sources, and carbon dioxide to produce a hydrocarbon that can be made into a fuel that is more sustainable than fossil fuels for aviation. eSAF is a newly developed product that requires carbon dioxide for its processing. It has gained prominence as a key driver of decarbonization in the airline industry, and it is likely to see a sharp increase in demand in the coming years.
API- Application Programming Interface
ASU – Air Separation Unit (used in OXY processes)
BECCS- Bioenergy with Carbon Capture and Storage
BRU – Baseline Reservoir Utilization
C2C – Carbon-to-Chemicals
C2F – Carbon-to-Fuels
C2L – Carbon-to-Liquids (fuel production)
CAC – Customer Acquisition Cost
CBAM- The EU’s Carbon Border Adjustment Mechanism (CBAM) is the EU’s tool to put a fair price on the carbon emitted during the production of carbon intensive goods that are entering the EU, and to encourage cleaner industrial production in non-EU countries.
CCAM- Carbon Capture Additive Manufacturing
CCS- Carbon capture and sequestration
CCU – Carbon capture and use
CCUS- Carbon capture and use or sequestration
CDU- Carbon Dioxide Utilization
CMS -Content Management System
CO₂-CM- Carbon Dioxide for Concrete Manufacturing
CO₂-EC- Carbon Dioxide Electrochemical Conversion
CO₂-EOR – Carbon Dioxide Enhanced Oil Recovery
CO₂-SF- Carbon Dioxide Sequestration in Saline Formations
CO₂-TP- Carbon Dioxide-to-Products
COP- Conference of the Parties (e.g., COP28 for climate negotiations)
CSR- Corporate Social Responsibility
CUI- CO₂ Utilization Index (CUI): A metric for evaluating the efficiency and effectiveness of CO₂ use.
CWU- Carbon Waste Utilization
DAC- Direct air capture
DACCS- Direct Air Capture with Carbon Storage
DDAC- Decentralized Direct Air Capture
DOC- Direct Ocean Capture
EC- Electrochemical Conversion (of CO₂)
EIA- Environmental Impact Assessment
EOR- Enhanced Oil Recovery
EPA- Environmental Protection Agency
eSAF-Is a synthetic aviation fuel, which can be produced by combining hydrogen from renewable energy sources, and carbon dioxide to produce a hydrocarbon that can be made into a fuel that is more sustainable than fossil fuels for aviation.
ETS- Emissions Trading System
GCS – Geological Carbon Storage
GHG- Greenhouse Gas
IoT- Internet of Things
IPCC- Intergovernmental Panel on Climate Change
ISO-CC- International Standards for Carbon Capture
LRIP – Long-Range Injection Protocols
MOFs- Metal-Organic Frameworks (MOFs): Highly porous materials used to trap and store CO₂.
NET- Negative Emission Technology
NGCC- Natural Gas Combined Cycle (with CCS integration)
OKRs- Objectives and Key Results
OXY – Oxyfuel Combustion (with carbon capture)
P&T – Pressure and Temperature Monitoring (in storage sites)
PaaS- Platform as a Service
PCC – Post-Combustion Capture
PCCU- Polymer Carbon Capture Utilization
PreCC- Pre-Combustion Capture
R&D – Research and Development
ROG- Reservoir Operational Guidelines (for CO₂ storage)
ROI- Return on Investment
SaaS- Software as a Service
SDGs- Sustainable Development Goals
SEO – Search Engine Optimization
SFR- Subsurface Fluid Recovery (CO₂-related)
TCC – Thermochemical Carbon Capture
TRL- Technology Readiness Level (TRL): A scale to assess the maturity of carbon capture technologies.
UNFCCC-United Nations Framework Convention on Climate Change
ZTC – Zeolite-based Thermal Capture