The authors find that double counting can occur not only directly, but in rather indirect ways which can be challenging to identify. Addressing double counting effectively requires international coordination in three areas: accounting of units, design of mechanisms that issue units, and consistent tracking and reporting on units.
While international agreement on principles for accounting and mechanism design is crucial to preventing double counting, the governance arrangements for implementation and international oversight could vary. The paper discusses different options and makes specific recommendations for rules to address double counting up to 2020 and in a post-2020 climate regime.
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Note: This paper is the third in a series of three papers on the interactions between international carbon markets and mitigation pledges. Click on the links at right to see the others.
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