Can updated climate pledges limit warming well below 2°C?

Yang Ou¹, Gokul Iyer¹, Leon Clarke², Jae Edmonds¹, Allen A Fawcett³, Nathan Hultman^{2

4}, James R McFarland³, Matthew Binsted¹, Ryna Cui², Claire Fyson⁵, Andreas Geiges⁵, Sofia Gonzales-Zuñiga⁶, Matthew J Gidden^{5

7}, Niklas Höhne^{8

9}, Louise Jeffery⁶, Takeshi Kuramochi^{8

10}, Jared Lewis^{11

12

13}, Malte Meinshausen^{11

12

13}, Zebedee Nicholls^{11

12

13}, Pralit Patel¹, Shaun Ragnauth³, Joeri Rogelj^{7

14}, Stephanie Waldhoff¹, Sha Yu¹, Haewon McJeon¹

Affiliations

¹ Joint Global Change Research Institute, Pacific Northwest National Laboratory and University of Maryland, College Park, MD, USA.
² Center for Global Sustainability, School of Public Policy, University of Maryland, College Park, MD, USA.
³ US Environmental Protection Agency, Washington, DC, USA.
⁴ US Department of State, Washington, DC 20520, USA.
⁵ Climate Analytics, Berlin, Germany.
⁶ NewClimate Institute, Berlin, Germany.
⁷ International Institute for Applied Systems Analysis, Laxenburg, Austria.
⁸ NewClimate Institute, Cologne, Germany.
⁹ Environmental Systems Analysis Group, Wageningen University and Research, Wageningen, Netherlands.
¹⁰ Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands.
¹¹ Australian-German Climate and Energy College, The University of Melbourne, Parkville, Victoria, Australia.
¹² School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Parkville, Victoria, Australia.
¹³ Climate Resource, Northcote, Victoria, Australia.
¹⁴ Grantham Institute, Imperial College London, London, UK.

Yang Ou et al. Science. 2021.

. 2021 Nov 5;374(6568):693-695.

doi: 10.1126/science.abl8976. Epub 2021 Nov 4.

¹ Joint Global Change Research Institute, Pacific Northwest National Laboratory and University of Maryland, College Park, MD, USA.
² Center for Global Sustainability, School of Public Policy, University of Maryland, College Park, MD, USA.
³ US Environmental Protection Agency, Washington, DC, USA.
⁴ US Department of State, Washington, DC 20520, USA.
⁵ Climate Analytics, Berlin, Germany.
⁶ NewClimate Institute, Berlin, Germany.
⁷ International Institute for Applied Systems Analysis, Laxenburg, Austria.
⁸ NewClimate Institute, Cologne, Germany.
⁹ Environmental Systems Analysis Group, Wageningen University and Research, Wageningen, Netherlands.
¹⁰ Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, Netherlands.
¹¹ Australian-German Climate and Energy College, The University of Melbourne, Parkville, Victoria, Australia.
¹² School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Parkville, Victoria, Australia.
¹³ Climate Resource, Northcote, Victoria, Australia.
¹⁴ Grantham Institute, Imperial College London, London, UK.

Abstract

Increased ambition and implementation are essential.

Transparency crucial to Paris climate scenarios.
King L, van den Bergh J, Kallis G. King L, et al. Science. 2022 Feb 25;375(6583):827-828. doi: 10.1126/science.abn7998. Epub 2022 Feb 24. Science. 2022. PMID: 35201856 No abstract available.