Greenhouse gases (GHG)

Gaseous constituents of the atmosphere, from natural or anthropic sources, that absorb and re-emit infrared radiation. The UNFCCC and Kyoto Protocol count for carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), and sulfur hexafluoride (SF₆), accompanied by two families of gases – hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) .

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Executive Board

Article 12 of the Kyoto Protocol establishes an independent governing body – the Executive Board – to supervise the implementation and administration of the clean development mechanism (CDM). The Executive Board is the last point of contact for CDM participants,...

Permanence

Time at which carbon stored by sequestration remains in a carbon pool without being rereleased. Only permanent carbon pools are acceptable for climate policy purposes.

Externality

The fact of existing outside the perceiving subject. This economic phenomenon can be categorized as positive or negative when, in the price of the good placed on the market, the social gains and losses resulting from its production or consumption, respectively, are...