Global Mitigation Pathways / Level of Global Ambition
Global Mitigation Requirement
The global mitigation requirement is the “mitigation gap” between emissions under a global Business-as-Usual pathway and emissions under the specified global mitigation pathway. In any given year, for any given BAU and mitigation pathway pair, this gap can be expressed as a number of Gigatonnes of CO2 or CO2equivalent. This is the number of tons to be mitigated in that year. This global mitigation requirement can be allocated to individual countries, in proportion to their Responsibility and Capacity Index, to determine their fair share of the global mitigation effort.