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The “Tool for the demonstration and assessment of additionality in A/R CDM project activities”
(Version 02) [EB35, Annex 17] provides for a step-wise approach to demonstrate additionality in A/R
CDM projects. It has the basic structure similar to that of the emission reduction CDM projects. The
main difference is that the additionality tool for A/R CDM project activities has an extra step “STEP 0.
Preliminary screening based on the starting date of the A/R project activity.” For details on its scope,
applicability and parameters refer to Appendix 3.
The EB agreed to the “Combined tool to identify the baseline scenario and demonstrate additionality
in A/R CDM project activities” (CT-AR) (Version 01) [EB35, Annex 19]. The CT-AR provides a general
framework and a step-wise approach to identify the baseline scenario and simultaneously
demonstrates additionality in A/R CDM project activities. It applies the same approach used in the
combined tool to identify the baseline scenario and demonstrate additionality for non-A/R project
activities, while including specific guidance for use in the A/R CDM project activities. The CT-AR is
consistent with the revised tool for the demonstration and assessment of additionality in A/R CDM
project activities and facilitates development of NMs by providing a stepwise procedure to identify
the baseline scenario and demonstrate additionality.
Section C.7. Estimation of the ex ante baseline GHG removals by sinks
Project participants are asked to present final results of their calculations using the following tabular
format.
Year A
Year B
Year C
Year …
Year
Total estimated baseline net GHG
removals by sinks (tCO 2 e)
Total number of crediting years
Annual average over the crediting
period of estimated baseline net GHG
removals by sinks (tCO 2 e)
Annual estimation of baseline GHG removals in tCO 2 e
(4) Section D. Estimation of ex ante actual net GHG removals by sinks, leakage and estimated
amount of net anthropogenic GHG removals by sinks over the chosen crediting period
Project participants should calculate the ex ante actual GHG removals and leakage for the chosen
crediting period using the approach provided in the selected AM (annually, for each gas, pool, source,
in units of CO 2 equivalent). Use a stepwise approach and name components being calculated. List
numerical values and sources of all data used in the above calculation. Refer to, but do not copy,
pieces of the selected AM, unless necessary.
The actual net GHG removals is the sum of verifiable changes in carbon stocks, minus the increase in
emissions of the GHGs measured in units of CO 2 equivalent by the sources that are increased as result
of the implementation of the proposed A/R CDM project activity within the project boundary.
Leakage is defined as the increase of GHG emissions which occurs outside the project boundary, and
that is measurable and attributable to the proposed A/R CDM project activity. The EB has provided
guidance regarding leakage [EB22, Annex 15]. The accounting of decreases of carbon pools outside
the project boundary is to be considered as leakage and that, in particular:
(a) In the case of deforestation as land clearance outside the project boundary due to activity
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