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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Agroforestry systems

Agroforestry systems

Forms of land-use and land-management, in which trees or shrubs are used together with crop and/or animals in the same area, simultaneously or in a sequence of time. They must include at least one tree or shrub forest species, which can be combined with one or more...

Entry into force

Entry into force

Intergovernmental agreements, including protocols and amendments, are not legally valid until ratified by a certain number of countries. For the UNFCCC creation, it took 50 countries; as for ratifying the Kyoto Protocol, at least 55 countries were required...

Carbon stocks

Carbon stocks

They include carbon stored in vegetation (above and below ground), decaying matter in the soil, and wood products.