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.; H鰄ne N.; Iacobuta G.; Krey V.; Kriegler E.; Luderer G.; Riahi K.; Ueckerdt F.; Despr閟 J.; Drouet L.; Emmerling J.; Frank S.; Fricko O.; Gidden M.; Humpen鰀er F.; Huppmann D.; Fujimori S.; Fragkiadakis K.; Gi K.; Keramidas K.; K鯾erle 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.

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Title:	Taking stock of national climate policies to evaluate implementation of the Paris Agreement
Authors:	Roelfsema M. van Soest H.L. Harmsen M. van Vuuren D.P. Bertram C. den Elzen M. H鰄ne N. Iacobuta G. Krey V. Kriegler E. Luderer G. Riahi K. Ueckerdt F. Despr閟 J. Drouet L. Emmerling J. Frank S. Fricko O. Gidden M. Humpen鰀er F. Huppmann D. Fujimori S. Fragkiadakis K. Gi K. Keramidas K. K鯾erle 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.
Issue Date:	2020
Publisher:	Nature Research
Citation:	Roelfsema, M., van Soest, H. L., Harmsen, M., van Vuuren, D. P., Bertram, C., den Elzen, M., H鰄ne, N., Iacobuta, G., Krey, V., Kriegler, E., Luderer, G., Riahi, K., Ueckerdt, F., Despr閟, J., Drouet, L., Emmerling, J., Frank, S., Fricko, O., Gidden, M., � Vishwanathan, S. S. (2020). Taking stock of national climate policies to evaluate implementation of the Paris Agreement. Nature Communications, 11(1). https://doi.org/10.1038/s41467-020-15414-6
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爋n 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爓ith the optimal pathways to implement the well below 2 癈 and 1.5 癈燩aris 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 癈. 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. � 2020, The Author(s).
URI:	https://www.doi.org/10.1038/s41467-020-15414-6 http://hdl.handle.net/11718/25190
ISSN:	20411723
Appears in Collections:	Open Access Journal Articles

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