Climate system

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.

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.

The baseline of a project is the scenario that represents the level of anthropogenic emissions/removals of CO2 equivalent that would occur in the absence of the proposed project activity. It serves as a basis for both verification of additionality and...