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  Taking stock of national climate policies to evaluate implementation of the Paris Agreement

Roelfsema, M., van Soest, H. L., Harmsen, M., van Vuuren, D. P., Bertram, C., den Elzen, M., Höhne, N., Iacobuta, G., Krey, V., Kriegler, E., Luderer, G., Riahi, K., Ueckerdt, F., Després, J., Drouet, L., Emmerling, J., Frank, S., Fricko, O., Gidden, M., Humpenöder, F., Huppmann, D., Fujimori, S., Fragkiadakis, K., Gi, K., Keramidas, K., Köberle, A. C., Aleluia Reis, L., Rochedo, P., Schaeffer, R., Oshiro, K., Vrontisi, Z., Chen, W., Iyer, G. C., Edmonds, J., Kannavou, M., Jiang, K., Mathur, R., Safonov, G., Vishwanathan, S. S. (2020): Taking stock of national climate policies to evaluate implementation of the Paris Agreement. - Nature Communications, 11, 2096.
https://doi.org/10.1038/s41467-020-15414-6

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 Creators:
Roelfsema, Mark1, Author
van Soest, Heleen L.1, Author
Harmsen, Mathijs1, Author
van Vuuren, Detlef P.1, Author
Bertram, Christoph2, Author              
den Elzen, Michel1, Author
Höhne, Niklas1, Author
Iacobuta, Gabriela1, Author
Krey, Volker1, Author
Kriegler, Elmar2, Author              
Luderer, Gunnar2, Author              
Riahi, Keywan1, Author
Ueckerdt, Falko2, Author              
Després, Jacques1, Author
Drouet, Laurent1, Author
Emmerling, Johannes1, Author
Frank, Stefan1, Author
Fricko, Oliver1, Author
Gidden, Matthew1, Author
Humpenöder, Florian2, Author              
Huppmann, Daniel1, AuthorFujimori, Shinichiro1, AuthorFragkiadakis, Kostas1, AuthorGi, Keii1, AuthorKeramidas, Kimon1, AuthorKöberle, Alexandre C.1, AuthorAleluia Reis, Lara1, AuthorRochedo, Pedro1, AuthorSchaeffer, Roberto1, AuthorOshiro, Ken1, AuthorVrontisi, Zoi1, AuthorChen, Wenying1, AuthorIyer, Gokul C.1, AuthorEdmonds, Jae1, AuthorKannavou, Maria1, AuthorJiang, Kejun1, AuthorMathur, Ritu1, AuthorSafonov, George1, AuthorVishwanathan, Saritha Sudharmma1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Abstract: Many countries have implemented national climate policies to accomplish pledged Nationally Determined Contributions and to contribute to the temperature objectives of the Paris Agreement on climate change. In 2023, the global stocktake will assess the combined effort of countries. Here, based on a public policy database and a multi-model scenario analysis, we show that implementation of current policies leaves a median emission gap of 22.4 to 28.2 GtCO2eq by 2030 with the optimal pathways to implement the well below 2 °C and 1.5 °C Paris goals. If Nationally Determined Contributions would be fully implemented, this gap would be reduced by a third. Interestingly, the countries evaluated were found to not achieve their pledged contributions with implemented policies (implementation gap), or to have an ambition gap with optimal pathways towards well below 2 °C. This shows that all countries would need to accelerate the implementation of policies for renewable technologies, while efficiency improvements are especially important in emerging countries and fossil-fuel-dependent countries.

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 Dates: 2020-04-292020
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41467-020-15414-6
PIKDOMAIN: RD3 - Transformation Pathways
MDB-ID: 3017
Research topic keyword: 1.5/2°C limit
Research topic keyword: Climate Policy
Research topic keyword: Mitigation
Research topic keyword: Sustainable Development
Research topic keyword: Decarbonization  
Model / method: Model Intercomparison
Model / method: REMIND
Model / method: MAgPIE
Regional keyword: Global
Organisational keyword: RD3 - Transformation Pathways
Working Group: Energy Systems
Working Group: Land-Use Management
 Degree: -

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Title: Nature Communications
Source Genre: Journal, SCI, Scopus, p3, oa
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Publ. Info: -
Pages: - Volume / Issue: 11 Sequence Number: 2096 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals354
Publisher: Nature