Particular thanks are expressed to the members of the German Federal Foreign Office and the UNDP for their support, guidance and contributions to the project: Norbert Gorißen, Gerhard Schlaudraff, Anne-Mareike Vanselow, Jennifer Tollmann, Vanessa Moosmann and Lea Kauffmann (FFO); Marcos Mancini, Susan Olbrisch and Victorina Manciana (UNDP).
The report was prepared for publication under the supervision of Elizabeth Del Bourgo (OECD Environment Directorate). Dominique Haleva (OECD Environment Directorate) provided editorial, production and administrative support to the project. Editorial work was undertaken by Fiona Hinchcliffe and graphic design support by Andrew Esson. William Foster and Anaëlle Cathelineau (OECD Environment Directorate), as well as Catherine Bremer and Elisabeth Schoeffmann (OECD Public Affairs and Communications Directorate) provided communication and outreach support.
The authors would like to particularly thank the following individuals for their insightful contributions: Lisa Baumgartner, Christopher Marc Lilyblad, Victorina Manciana, Snezana Marstijepovic and Susanne Olbrisch (UNDP) ; Laura Cozzi, Hugh Hopewell and Thomas Spencer (IEA); Michael Mullan, Aysha Cotterill, Ioannis Tikoudis, Ana Diaz Vidal and Klas Wetterberg (OECD Environment Directorate); Yvan Guillemette (OECD Economics Department); Edward Bayliss, Rob Dellink, Benjamin Denis, Moongyung Lee, Mariana Mirabile, Amylia Mesic, Joana Argemi Ribalta, Marcia Rocha, Deger Saygin and Cecile Seguineaud (OECD Environment Directorate); Hélia Costa (OECD Economics Department); Isabelle Chatry, Justin Chen, Charlotte Lafitte, Tadashi Matsumoto, Eleanor West and Celia Zuberec (OECD Centre for Centre for Entrepreneurship, SMEs, Regions and Cities); Iris Mantovani, Mark Pearson and Stefano Scarpetta (OECD Directorate for Financial and Enterprise Affairs); Jonathan D. Moyer, Ethan Sullivan Abdelrahman Ibrahim (Frederick S. Pardee Institute for International Futures).
Comments and feedback from colleagues are also acknowledged: Mathilde Mesnard, Kumi Kitamori, Shardul Agrawala, Nathalie Girouard, Yuval Laster and Walid Oueslati; Geraldine Ang, Valentina Bellesi, Enrico Botta, Ivana Capozza, Filippo Maria D’Arcangelo, Assia Elgouacem, Natalie Girouard, Yvan Guillemette, Douglas Herrick, Raphaël Jachnik, Katia Karousakis, Tobias Kruse, Nicolina Lamhauge, Giulio Mazzone, Cian Montague, Daniel Nachtigall, Mauro Pisu, Kilian Raiser, Elena Rusticelli, Deger Saygin, Douglas Sutherland, Simon Touboul, Hugo Valin, Hidemichi Yonezawa, Robert Youngman, Eleanor West (OECD), Hugh Hopewell and Heeweon Hyun (IEA).
Comments and suggestions from external reviewers are gratefully acknowledged: Helen Mountford (ClimateWorks Foundation), Pablo Viera, Adrian Flores Aguilar, Estefanía Ardila, Clarissa Lehne, Amanda McKee, Fernando Mendez and Guly Sabahi (NDC Partnership), Marina Caetano, Maria Netto, Dileimy and Orozco (Institute for Climate and Society - iCS), Martina Otto and Ava Bahrami (UNEP), R. Sudharshan Canagarajah and Rodrigo Martinez Fernandez (World Bank), Jan Corfee-Morlot (Independent expert), and Andrew Prag (We Mean Business Coalition)
The authors would like to thank the following experts for their availability to share insights from their experiences and on-going work relating to NDCs, including Davinah Milenge Uwella, Ekeoma Onuoha and Gareth Phillips (African Development Bank), Brendan Coleman, Kate Hugues and Noelle O’Brien (Asian Development Bank), Joy Busolo, Rissa Camins and Rodrigo Martinez Fernandez (the World Bank), Adrian Flores Aguilar, Estefanía Ardila and Jesus Alvarado (NDC Partnership), Sung-Ah Kyun, Joana Gjinopulli and Salma El Naggar (EBRD), and Darius Nassiry (WSP).
The comments and suggestions provided by the following OECD committees are also acknowledged: Environment Policy Committee (EPOC), Working Party on Climate Change (WPCC) and the Working Party on Finance and Investment for Environmental Goals (WPFIEG) and Committee Leadership Group (CLG).
The OECD and UNDP are particularly grateful for the constructive input and perspectives from more than 40 participants across the three high-level roundtable consultations organised as part of the project:
“Climate Ambition and Action: Delivering the next round of ambitious, implementation-ready and investable NDCs”, 22 September 2024, New York
“How to build the economic case for ambition and action in the next NDCs?”, 14 November 2024, Baku
“Aiming high on climate for growth and development - Making the case for Enhanced NDCs”, 21 February 2025, Virtual