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Knowledge Hub

Carbon Glossary

A

Article 6 & International Market Mechanisms

  • What is Article 6 of the Paris Agreement?

  • What is the Article 6.4 mechanism?

  • What is the Clean Development Mechanism (CDM)?

  • What are ITMOs?

  • What is a corresponding adjustment?

  • What is a host country letter of authorization (LoA)?

C

Carbon Pricing Mechanisms

  • What is a cap-and-trade system?

  • What is a carbon tax?

  • What is the EU ETS?

  • What are EUAs?

  • What is the difference between a carbon credit and an EUA?

  • What is Allowance?

  • What is Emission Trading System (ETS)?

C

Carbon Credits and Offsetting Concepts

  • What are carbon credits?

  • What is carbon offsetting?

  • What is carbon dioxide removal (CDR)?

  • What are carbon removals?

  • What are avoidance credits?

  • What is climate contribution vs. offsetting?

  • What is Removal Credit?

  • What is Reduction Credit?

  • What is Forward Contract (Carbon)?

  • What is Issuance?

  • What is Serial Number?

C

Carbon Credit Systems & Registries

  • What is a carbon registry?

  • How do carbon credits get verified?

  • What is a carbon credit retirement?

  • What is a monitoring, reporting, and verification (MRV) system?

  • What is a carbon project baseline?

  • What is project stacking in carbon markets?

  • What are cookstove carbon credits?

  • What are co-benefits in carbon projects?

  • What is Verified Carbon Standard (VCS)?

  • What is Climate Action Reserve (CAR)?

  • What is American Carbon Registry (ACR)?

  • What is Puro.earth?

  • What is Validation?

  • What is Methodology?

С

Carbon Markets: Overview and Types

  • What are carbon markets?

  • What is the voluntary carbon market (VCM)?

  • What are compliance-grade carbon credits?

  • What is the carbon market's role in net-zero?

  • What is carbon market liquidity?

  • What is Compliance Market?

  • What is Voluntary Market?

  • What is Spot Market?

C

Carbon Removal Technologies

  • What is Biochar?

  • What is Direct Air Capture (DAC)?

  • What is Carbon Capture and Storage (CCS)?

  • What is BECCS?

  • What is Decarbonization Pathway?

C

Corporate Climate Strategy

  • What is GHG Protocol?

  • What is Value Chain?

C

Credit Integrity and Quality Principles

  • What is additionality in carbon projects?

  • What is permanence in carbon offsets?

  • What is permanence risk in nature-based credits?

  • What is leakage in carbon markets?

  • What is double counting in carbon markets?

  • What is buffer pooling in carbon projects?

  • What is buffer pool capitalization?

  • What are carbon credit ratings?

  • What is vintage mismatch in offsetting?

  • What is a vintage in carbon credits?

  • What is the carbon removal hierarchy?

E

Emissions Accounting and Scope

  • What is Scope 1, 2, and 3 emissions?

  • What are residual emissions?

  • What is lifecycle emissions accounting?

  • What is Carbon Accounting?

  • What is Direct Emissions?

  • What is Indirect Emissions?

  • What is Emission Factor?

  • What is Carbon Intensity?

  • What is Corporate Carbon Footprint?

  • What is Life Cycle Assessment (LCA)?

G

Global Oversight and Reviews

  • What is the Global Stocktake?

  • What is the UNFCCC?

  • What is the Enhanced Transparency Framework (ETF)?

G

Greenhouse Gas Science & Metrics

  • What is Carbon Dioxide (CO₂)?

  • What is Carbon Dioxide Equivalent (CO₂e)?

  • What is Greenhouse Gas (GHG)?

  • What is Methane (CH₄)?

  • What is Nitrous Oxide (N₂O)?

  • What is Global Warming Potential (GWP)?

  • What is Metric Tonne?

I

Instruments Beyond Carbon Credits

  • What are Energy Attribute Certificates (EACs)?

  • What are RECs, GOs, and I-RECs?

  • What is insetting?

M

Market Infrastructure and Roles

  • What is a carbon market intermediary?

  • What is over-the-counter (OTC) carbon trading?

  • What is credit aggregation?

  • What is Carbon Project Developer?

P

Project Types and Nature-Based Approaches

  • What are nature-based solutions (NbS)?

  • What is regenerative agriculture?

  • What is community-based carbon project design?

  • What is Afforestation?

  • What is Reforestation?

  • What is Agroforestry?

  • What is REDD+?

  • What is Blue Carbon?

  • What is Carbon Sequestration?

R

Regenerative Agriculture & Soil Carbon

  • What is Carbon Farming?

  • What is Soil Carbon?

  • What is Soil Health?

  • What is Conservation Tillage?

  • What is Cover Crops?

  • What is Crop Rotation?

  • What is No-Till Farming?

  • What is Nutrient Management?

  • What is Crop Residue?

  • What is Organic Matter?

  • What is Chernozem?

  • What is VM0042?

  • What is Crediting Period?

S

Standards, Governance, and Integrity Initiatives

  • What is the Integrity Council for the Voluntary Carbon Market (ICVCM)?

  • What are the Core Carbon Principles (CCPs)?

  • What is the Voluntary Carbon Market Integrity Initiative (VCMI)?

  • Who are Verra and Gold Standard?

  • What is Science Based Targets initiative (SBTi)?

  • What is CORSIA?

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