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, 72 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 that effort in three main ways: 

In-Country Support

WRI is supporting four countries — Kenya, Rwanda, Colombia and Ethiopia — develop unified country-level CHAMP strategies by helping to identify priority climate actions that can benefit from stronger multilevel collaboration and co-design frameworks to enhance existing climate action pathways.

NDC Guide

WRI is developing practical guidance to national governments, particularly the 74 CHAMP endorsers, on how to enhance their NDCs through cooperation with subnational governments.

High-Level Political Dialogue

WRI will co-host the CHAMP High-Level Political Dialogue, a closed-door roundtable featuring ministers, governors and mayors, during the U.N. General Assembly and Climate Week NYC in September 2024.​ This will be an 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. 

List of CHAMP endorsing countries:

1. Albania
2. Andorra
3. Antigua and Barbuda
4. Armenia
5. Australia
6. Azerbaijan
7. Bahamas
8. Bangladesh
9. Belgium
10. Bhutan
11. Brazil
12. Brunei Darussalam
13. Bulgaria
14. Burkina Faso
15. Cabo Verde
16. Canada
17. Chad
18. Chile

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

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

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

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

72. United Kingdom
73. United States of America
74. Yemen