Does black carbon abatement hamper CO
2
abatement? |
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Authors: | Terje Berntsen Katsumasa Tanaka Jan S Fuglestvedt |
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Institution: | 1. CICERO (Center for International Climate and Environmental Research—Oslo), P.O. Box 1129, Blindern, 0318, Oslo, Norway 2. Department of Geosciences, University of Oslo, P.O. Box 1022, Blindern, 0315, Oslo, Norway
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Abstract: | Concerns have been raised that near-term black carbon abatement strategies for global warming mitigation would interfere with the longer-term CO2 abatement efforts. In response, we put forward a “combined target and metric approach”, a theoretical framework, in which the time horizon of the metric is linked to the specific target of the climate policy. In this approach, a shorter time horizon for the metric is justified only when the overall climate policy is tightened; the lower the target level of the climate policy, the earlier the year of the target. Employing a consistent time perspective for the metric and target means that enhanced near-term reduction of short-lived climate forcers does not reduce the importance of the CO2 abatement, since the overall climate target is stricter. |
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