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.

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Arc of deforestation

The region where the agricultural border advances towards the forest and also where the highest rates of deforestation of the Amazon are found. It corresponds to 500 thousand km² of land, going from the east and south of the Brazilian state of Pará towards the...

Climate change

Changes that are directly or indirectly attributed to human activity and alter the composition of the world's atmosphere and that is added to that caused by the natural climatic variability observed over comparable periods.

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...