Carbon dioxide (CO2)

Gas naturally present in the atmosphere, accounting for approximately 0.036% of all of the atmospheric gases, and also emitted from the burning of fossil fuels and biomass, land use changes, and other industrial processes. It is one of the main greenhouse gases and is used as a reference to the other ones.

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Ratification

Ratification

After signing an international treaty, such as the Climate Change Convention or the Kyoto Protocol, a country has to ratify the commitment, often with the approval of its parliament or other legislature. The ratification instrument must be deposited with the UN...

Additionality

Additionality

Criteria established by Article 12 of the Kyoto Protocol, to which the projects developed through the Clean Development Mechanism are subject.  Under this criterion, an activity must prove to result in the reduction of greenhouse gases emissions or the increase of...

Carbon pools

Carbon pools

A component of the climate system in which the so-called greenhouse gases –or a precursor of greenhouse gas – are stored.