Cities present a major opportunity — and an imperative — for raising climate ambition and delivering on countries’ climate mitigation and adaptation plans. 

Globally, one-third of potential urban emission reductions depends on collaboration between local, regional and national governments. Unlocking climate action through multilevel partnerships is therefore critical to achieving the goals of the Paris Agreement.

While the urban content of Nationally Determined Contributions (NDCs) is improving, it remains insufficient and doesn’t reflect the increasingly urban world we live in. UN-Habitat analysis shows that only 27% of nations’ pledges under the Paris Agreement include strong urban content. Setting national targets in closer collaboration with subnational governments, including cities, states and regions, can both help close the emissions gap and build resilience to the effects of climate change being experienced today.

Cities, states and regions are ready to act and, with the right support, can not only rapidly reduce up to 90% of their emissions but also create good jobs and long-term shared prosperity.

The Coalition for High Ambition Multilevel Partnerships (CHAMP) for Climate Action, launched in December 2023 by the COP28 Presidency in partnership with Bloomberg Philanthropies and with support from governmental, academic, and nonprofit groups, aims to enhance the cooperation and collaboration necessary for meeting those goals.

CHAMP is a commitment for greater multilevel cooperation in producing a country's climate plans, such as NDCs, to ensure that the next round of national pledges reflect greater ambition and inclusivity.

Since its launch at COP 28, 75 national governments, representing 34% of the global population, 58% of global GDP and 36% of global emissions, have joined CHAMP and endorsed its pledge.

CHAMP seeks to unlock emissions reductions and build resilience through concerted action across all levels of government, ensuring that the next round of national climate pledges reflect greater ambition and inclusivity.

Broadly speaking, CHAMP has two complementary goals:  

  • Signatory countries develop enhanced NDCs, incorporating strong subnational content, and include subnational governments in the process.
  • Subnational governments in CHAMP countries can progress, finance and deliver more ambitious, inclusive climate action. 

CHAMP partners aim to demonstrate implementation of its pledge’s principles in at least 10 countries by COP30 in 2025.

WRI Ross Center for Sustainable Cities, a founding partner of CHAMP, is supporting in three main ways: 

In-Country Support

In 2024, WRI supported Colombia, Kenya and Rwanda to design, deliver and document consultation processes aimed at strengthening subnational involvement in the NDC development process and aligning national climate goals with local priorities. WRI is currently supporting similar efforts in Ethiopia.

NDC Guidance for National Governments

WRI has developed practical guidance to support national governments, particularly the 77 CHAMP endorsers, to enhance their NDCs through cooperation with subnational governments. Countries can produce more ambitious and credible NDCs by collaborating with subnational governments throughout the NDC development process and integrating subnational government data, trends, targets, risks, policies and actions into NDCs. Designed to support CHAMP, Stronger NDCs with Cities, States, and Regions sets out eight recommendations and accompanying practical steps, tools, case studies to support national governments in realizing this significant but underutilized multilevel partnership opportunity.

High-Level Political Dialogue

WRI co-hosted the CHAMP High-Level Political Dialogue: Delivering Climate Action Through National-Subnational Collaboration, a closed-door roundtable featuring ministers, governors and mayors, during the UN General Assembly and Climate Week NYC in September 2024. This roundtable was a crucial opportunity to showcase “first movers,” endorsers that have started working on and/or have made ambitious progress toward implementing NDC-related CHAMP principles, with the goal of encouraging further commitment and ambition.

Bloomberg Philanthropies' Antha Williams and WRI's Ani Dasgupta at the High-Level Political Dialogue during Climate Week NYC
Bloomberg Philanthropies' Antha Williams and WRI's Ani Dasgupta at the High-Level Political Dialogue during Climate Week NYC, 2024.

List of CHAMP endorsing countries:

Summary of Activities Report

CHAMP 2024 Summary of Activities Cover

This summary, prepared by WRI on behalf of the CHAMP coalition, showcases the impact of CHAMP and celebrates its endorsers as a trailblazing group of multilevel partnership champions that inspires action by demonstrating best practices.

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1. Albania
2. Andorra
3. Antigua and Barbuda
4. Armenia
5. Australia
6. Azerbaijan
7. Bahamas
8. Bangladesh
9. Belgium
10. Bhutan

11. Bolivia
12. Brazil
13. Brunei Darussalam
14. Bulgaria
15. Burkina Faso
16. Cabo Verde
17. Canada
18. Chad
19. Chile

20. Colombia
21. Costa Rica
22. Cote d'Ivoire
23. Denmark
24. Dominican Republic
25. El Salvador
26. Estonia
27. Eswatini
28. Ethiopia
29. Finland

30. France
31. Germany
32. Ghana
33. Guatemala
34. Hungary
35. Iceland
36. Italy
37. Jamaica
38. Japan

39. Jordan
40. Kenya
41. Kiribati
42. Kyrgyzstan
43. Lebanon
44. Lesotho
45. Mexico
46. Moldova
47. Mongolia
48. Morocco
49. Netherlands
50. Nicaragua
51. Nigeria
52. North Macedonia
53. Norway
54. Pakistan
55. Palau
56. Panama

57. Papua New Guinea
58. Paraguay
59. Philippines
60. Poland
61. Portugal
62. Rwanda
63. Sant Vincent and the Grenadines
64. Serbia
65. Seychelles
66. Sierra Leone
67. South Korea
68. Sri Lanka

69. Sweden

70. Tunisia

71. Türkiye
72. Turkmenistan
73. UAE
74. Ukraine

75. United Kingdom
76. United States of America
77. Yemen