The DOI matches its Crossref record; 83 of the 87 references it cites were found in a registry or an index.
Does carbon pricing reduce emissions? A review of ex-post analyses
Open accessAbstract
Carbon pricing has been hailed as an essential component of any sensible climate policy. Internalize the externalities, the logic goes, and polluters will change their behavior. The theory is elegant, but has carbon pricing worked in practice? Despite a voluminous literature on the topic, there are surprisingly few works that conduct an ex-post analysis, examining how carbon pricing has actually performed. This paper provides a meta-review of ex-post quantitative evaluations of carbon pricing policies around the world since 1990. Four findings stand out. First, though carbon pricing has dominated many political discussions of climate change, only 37 studies assess the actual effects of the policy on emissions reductions, and the vast majority of these are focused on Europe. Second, the majority of studies suggest that the aggregate reductions from carbon pricing on emissions are limited—generally between 0% and 2% per year. However, there is considerable variation across sectors. Third, in general, carbon taxes perform better than emissions trading schemes (ETSs). Finally, studies of the EU-ETS, the oldest ETS, indicate limited average annual reductions—ranging from 0% to 1.5% per annum. For comparison, the IPCC states that emissions must fall by 45% below 2010 levels by 2030 in order to limit warming to 1.5 °C—the goal set by the Paris Agreement (Intergovernmental Panel on Climate Change 2018). Overall, the evidence indicates that carbon pricing has a limited impact on emissions.
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“Most studies have confirmed the effectiveness of carbon pricing in reducing emissions.”
From The Impact of Carbon Pricing on Corporate Sustainability: Evidence From the European Union (2026) · cites this paper as Green 2021
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“These studies reveal a small impact of this type of policy on national emissions.”
From The Impact of Carbon Pricing on Corporate Sustainability: Evidence From the European Union (2026) · cites this paper as Green 2021
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Cites
Unruh, G. C. (2000) · Energy Policy · doi:10.1016/s0301-4215(00)00070-7 · Cited by 3,304
Country-level social cost of carbon
Ricke, K., Drouet, L., Caldeira, K., & Tavoni, M. (2018) · Nature Climate Change · doi:10.1038/s41558-018-0282-y · Cited by 860
The effect of carbon tax on per capita CO2 emissions
Lin, B., & Li, X. (2011) · Energy Policy · doi:10.1016/j.enpol.2011.05.050 · Cited by 593
Carbon Taxes and CO2 Emissions: Sweden as a Case Study
Andersson, J. (2019) · American Economic Journal Economic Policy · doi:10.1257/pol.20170144 · Cited by 551
The European Union Emissions Trading System reduced CO 2 emissions despite low prices
Bayer, P., & Aklin, M. (2020) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1918128117 · Cited by 545
Report of the high-level commission on carbon prices
Stern, N., & Stiglitz, J. (2017) · doi:10.7916/d8-w2nc-4103 · Cited by 540
Rethinking private authority: agents and entrepreneurs in global environmental governance
(2014) · Choice Reviews Online · doi:10.5860/choice.52-0517 · Cited by 540
Carbon pricing in practice: a review of existing emissions trading systems
Narassimhan, E. J., Gallagher, K. S., Koester, S., & Alejo, J. R. (2018) · Climate Policy · doi:10.1080/14693062.2018.1467827 · Cited by 513
Baranzini, A., van den Bergh, J. C. J. M., Carattini, S., Howarth, R. B., Padilla, E., & Jusmet, J. R. (2017) · Wiley Interdisciplinary Reviews Climate Change · doi:10.1002/wcc.462 · Cited by 503
Pricing Carbon: The European Union Emissions Trading Scheme
Ellerman, A. D., Convery, F. J., de Perthuis, C., Alberola, É., Büchner, B., Delbosc, A., Hight, C., Keppler, J. H., & Matthes, F. C. (2010) · Cited by 481
Research works printed but not linked: 1
- Parry, 2019, Putting a price on pollution, Finance Dev., 56, 16
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Hanson, E., Nwakile, C., & Hammed, V. O. (2024) · Results in Surfaces and Interfaces · doi:10.1016/j.rsurfi.2024.100381 · Cited by 319
OECD Environment Working Papers
OECD (2010) · OECD environment working papers · doi:10.1787/19970900 · Cited by 234
Carbon taxation: A review of the empirical literature
Köppl, A., & Schratzenstaller, M. (2022) · Journal of Economic Surveys · doi:10.1111/joes.12531 · Cited by 250
Fighting Climate Change: International Attitudes Toward Climate Policies
Dechezleprêtre, A., Fabre, A., Kruse, T., Planterose, B., Chico, A. S., & Stantcheva, S. (2022) · American Economic Review · doi:10.1257/aer.20230501 · Cited by 323
Evro, S., Oni, B. A., & Tomomewo, O. S. (2024) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2024.142635 · Cited by 204
Metadata
- Authors
- Green, J. F.
- Affiliations
- University of Toronto (CA)
- Corresponding author
- Green, Jessica F
- ORCID
- Green, Jessica F
- Venue
- Environmental Research Letters
- Publisher
- IOP Publishing
- Published
- 2021-03-24
- Volume
- 16
- Issue
- 4
- Pages
- 043004
- ISSN
- 1748-9326 (ISSN-L)
- OpenAlex
- W3118647971
- Cited by
- 530
- References
- 87
- Citations by year
- 2026: 81 · 2025: 96 · 2024: 129 · 2023: 108 · 2022: 75 · 2021: 38
- FWCI
- 66.83
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Environmental Research Letters (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Topics
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Climate Change Policy and Economics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Energy, Environment, and Transportation Policies
- Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Energy, Environment, Economic Growth
- Keywords
- carbon pricing, carbon tax, emissions trading scheme, EU Emissions Trading System, emission reduction, climate policy effectiveness, ex-post evaluation, sectoral emissions, internalization of externalities
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