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Carbon & GHG Glossary


Carbon Footprint

the carbon dioxide emissions which can be traced back to an individual or corporate entity. More information here>>>

Carbon Sequestration

the process (natural or artificial) of storing carbon. Carbon is naturally sequestered in forests, oceans, and soils through the carbon cycle. Carbon is artificially sequestered as a mitigation strategy by injecting CO2 into underground storage sinks and other artificial processes.

Carbon Tax

an environmental tax on the emission of carbon dioxide or other greenhouse gases implemented to protect the environment by creating financial incentives to reduce emissions.

CCAR– California Climate Action Registry (CCAR)

a private, non-profit organization originally formed by the State of California that serves as a voluntary Greenhouse gas (GHG) registry to protect and promote early actions to reduce GHG emissions by organizations. The California Registry provides leadership on climate change by developing and promoting credible, accurate, and consistent GHG reporting standards and tools for organizations to measure, monitor, third-party verify, and reduce their GHG emissions consistently across industry sectors and geographical borders.


Climate, Community, and Biodiversity Alliance - The Climate, Community and Biodiversity Alliance is a partnership between leading companies, NGOs, and research institutes seeking to promote integrated solutions to land management around the world.


carbon capture and storage - a process generally engineered as opposed to using natural environmental processes of capturing carbon.

CDM - Clean Development Mechanism (CDM)

an arrangement under the Kyoto Protocol allowing industrialized countries with a greenhouse gas reduction commitment (Annex B countries) to invest in projects that reduce emissions in developing countries as an alternative to more expensive emission reductions in their own countries.

CFI (Carbon Financial Instrument) Contracts (CFI)

the commodity traded on the Chicago Climate Exchange which represents 100 metric tons of CO2 equivalent. CFI contracts are made up of Exchange Allowances and Exchange Offsets. The allowances are issued to emitting members based on their emission baseline and the CCX reduction schedule. Offsets are generated by qualifying offset projects.

Chicago Climate Exchange (CCX) (CCX)

the operator of a North American cap and trade system for all six Greenhouse gases

Climate Action Reserve (CAR) (CAR)

is a national offsets program working to ensure integrity, transparency and financial value in the U.S. carbon market. It does this by establishing regulatory-quality standards for the development, quantification and verification of greenhouse gas (GHG) emissions reduction projects in North America; issuing carbon offset credits known as Climate Reserve Tonnes (CRT) generated from such projects; and tracking the transaction of credits over time in a transparent, publicly-accessible system.

CO2 Equivalent (CDE) (CDE)

carbon dioxide equivalency is a quantity that describes, for a given mixture and amount of greenhouse gas, the amount of CO2 that would have the same global warming potential (GWP), when measured over a specified timescale (generally 100 years).

Conference of Parties (COP) (COP)

the primary negotiating body of the United Nations Framework Convention on Climate Change (UNFCCC). COP is made up of more than 170 nations that have ratified the Convention and serves to promote and review implementation of the Convention.


the cutting, harvesting, or otherwise clearing of forest land and not followed by reforestation – typically associated with conversion to another use.

Direct Carbon Sequestration

the process of directly capturing CO2 from the source of emission such as a coal fired power plant, separating the CO2 from other emissions, and compressing the carbon dioxide for long-term storage in carbon sinks.

Direct Emissions

Emission of GHGs that are directly controlled or owned by an entity. Also known as Scope 1 emissions


Department of Energy

Double Approval Process

The process by which new methodologies, methodology revisions, additionality performance tests, tools/modules, AFOLU market leakage assessments and AFOLU non-permanence risk assessments are approved under the VCS Program.

Emissions Trading

an administrative and financial approach used to control emissions by providing economic incentives for achieving reductions in emissions. See also cap and trade.

Emissions Trading Scheme (ETS) (ETS)

See Emissions Trading

EOR – Enhanced Oil Recovery (EOR)

the process of using CCS to increase the output of oil reserves.

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