Marginal Abatement Cost Curves and the Quality of Emission Reductions : A Case Study on Brazil Vogt-Schilb, Adrien Hallegatte, Stéphane de Gouvello, Christophe 2014-12-04T23:29:32Z 2014-12-04T23:29:32Z 2014-11-18
dc.description.abstract Decision makers facing emission-reduction targets need to decide which abatement measures to implement, and in which order. This article investigates how marginal abatement cost (MAC) curves can inform such a decision. We re-analyse a MAC curve built for Brazil by 2030, and show that misinterpreting MAC curves as abatement supply curves can lead to suboptimal strategies. It would lead to (1) under-investment in expensive, long-to-implement and large-potential options, such as clean transportation infrastructure, and (2) over-investment in cheap but limited-potential options such as energy-efficiency improvement in refineries. To mitigate this issue, the article proposes a new graphical representation of MAC curves that explicitly renders the time required to implement each measure. Policy relevance: In addition to the cost and potential of available options, designing optimal short-term policies requires information on long-term targets (e.g. halving emissions by 2050) and on the speed at which measures can deliver emission reductions. Mitigation policies are thus best investigated in a dynamic framework, building on sector-scale pathways to long-term targets. Climate policies should seek both quantity and quality of abatement, by combining two approaches: a ‘synergy approach’ that focuses on the cheapest mitigation options and maximizes co-benefits, and an ‘urgency approach’ that starts from a long-term objective and works backward to identify actions that need to be implemented early. Accordingly, sector-specific policies may be used (1) to remove implementation barriers on negative- and low-cost options and (2) to ensure short-term targets are met with abatement of sufficient quality. Indeed, such policies can avoid under-investment in the long-to-implement options required to reach long-term targets, which are otherwise difficult to enforce. en
dc.identifier.citation Climate Policy
dc.identifier.issn 1469-3062
dc.language.iso en_US
dc.publisher Taylor and Francis
dc.rights CC BY-NC-ND 3.0 IGO
dc.rights.holder World Bank
dc.subject carbon lock-in
dc.subject climate change mitigation policy
dc.subject low-carbon development plan
dc.subject sectoral policy
dc.subject technology policy
dc.title Marginal Abatement Cost Curves and the Quality of Emission Reductions : A Case Study on Brazil en
dc.type Journal Article en
dc.type Article de journal fr
dc.type Artículo de revista es
dspace.entity.type Publication
okr.associatedcontent Journal website (version of record)
okr.crosscuttingsolutionarea Climate Change 2014-11-14
okr.doctype Publications & Research :: Journal Article
okr.externalcontent External Content
okr.globalpractice Environment and Natural Resources
okr.globalpractice Energy and Extractives
okr.identifier.doi 10.1080/14693062.2014.953908
okr.journal.nbpages 703-23
okr.language.supported en
okr.peerreview Academic Peer Review
okr.region.administrative Latin America & Caribbean Brazil
okr.topic Environment :: Climate Change Mitigation and Green House Gases
okr.topic Environment :: Environmental Economics & Policies
okr.topic Environment :: Pollution Management & Control
okr.unit Climate Change Group; and Energy and Extractives Global Practice
okr.volume 15(6)
relation.isAuthorOfPublication 464cf77e-5e05-5115-97fe-d40b61d3996e
relation.isAuthorOfPublication 2fea2b63-4a74-5fbd-b964-71ef895df009
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