Definition, sourcing, and updating of emissions baselines
The essential framework here is effort-sharing as opposed to a resource sharing. Thus, calculations of fair shares are sensitive to assumptions about baselines – assumptions about “business-as-usual,” or BAU, as projected into the future. This is because effort-sharing approaches, by definition, allocate obligations in terms of reductions below a BAU situation in which no special climate-related efforts are being taken; i.e., a national emissions baseline.
What this means in practice is that a country’s actual mitigation obligation in any given year is relative to a projected baseline. Two countries with the same Responsibility and Capacity Index (or RCI) and thus the same mitigation obligation would have different emission allocations in a given year – say 2020 – if they had different BAU emissions projections for that year.
See Definition, sourcing, and updating of the emissions baselines for more information.
Definition, sourcing, and updating of emissions baselinesThe essential framework here is effort-sharing as opposed to a resource sharing. Thus, calculations of fair shares are sensitive to assumptions about baselines – assumptions about “business-as-usual,” or BAU, as projected into the future. This is because effort-sharing approaches, by definition, allocate obligations in terms of reductions below a BAU situation in which no special climate-related efforts are being taken; i.e., a national emissions baseline.What this means in practice is that a country’s actual mitigation obligation in any given year is relative to a projected baseline. Two countries with the same Responsibility and Capacity Index (or RCI) and thus the same mitigation obligation would have different emission allocations in a given year – say 2020 – if they had different BAU emissions projections for that year.See Definition, sourcing, and updating of the emissions baselines for more information.
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