ICLEI – Local Governments for Sustainability is a global network working with more than 2,500 local and regional governments committed to sustainable urban development.


ICLEI World Secretariat
Kaiser-Friedrich-Str. 7
53113 Bonn

ICLEI – Local Governments for Sustainability is a global network working with more than 2,500 local and regional governments committed to sustainable urban development.

ICLEI Regional Secretariats and country offices

The carbonn Center

Supporting cities, towns and regions tackling climate change –created to support transparency, accountability and credibility.

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The carbonn Center

Consistent reporting and tracking of climate action is critical to meeting local, regional, national and global climate targets. However, tracking systems, where they exist, are rarely integrated. This sort of parallel tracking makes it difficult to get a clear picture of climate action above the local level, as a way to inform more targeted policy and action.

Local and regional governments can report their climate data through CDP-ICLEI Track to monitor climate mitigation and adaptation commitments, plans, actions and performance.

The carbonn Center supports cities, towns and regions with developing robust reporting practices that enhance transparency, accountability and credibility, encouraging measurable, reportable and verifiable (MRV) local climate action.

Data from the unified reporting system shows the impact of local climate action and how it can contribute to Nationally Determined Contributions (NDCs) – national climate action plans submitted under the Paris Agreement – and to global climate targets.

The carbonn Center serves a number of key initiatives addressing a specific target group and theme and is also a prime data partner of the NAZCA Global Climate Action Portal managed by UN Climate Change.


Through the carbonn Center, ICLEI aims to encourage local and regional governments to use measurable, reportable and verifiable (MRV) local climate action as a means to enhance transparency, accountability and credibility, show how local climate action contributes to achieving Paris Agreement targets and build the case for scaling up support for local climate action as part of our global climate advocacy.


By reporting to CDP and ICLEI’s unified reporting system, local and regional governments can:

  • Use its integrated reporting system to make peer-to-peer comparisons.
  • Coordinate climate action planning and tracking across levels of government.
  • Track mitigation performance over time by reporting greenhouse gas inventories.
  • Examine climate hazards through risk analyses.
  • Report comprehensive, high quality data to gain visibility and recognition as local climate action leaders


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Reporting entities

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Get involved

All interested local and regional governments, researchers and potential partners can contact us at carbonn@iclei.org.

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ICLEI World Secretariat
European Secretariat
Leopoldring 3
79098 Freiburg, Germany
Brussels Office
Av. de Tervuren 35
1040 Bruxelles
Berlin Office
St. Oberholz ROS Team Room 4.02
Rosenthaler Str. 72a
10119 Berlin
Physical address:
Unit 1, 2nd Floor,
South Tower
Sable Park, 14 Bridge
Century City
Cape Town
South Africa
Tyger Valley, South Africa
ICLEI Africa Foundation
Ebène Junction, Quatre Bornes, Mauritius
North America
USA Office
536 Wynkoop St.
Suite 901
Denver, Colorado
USA 80202
Canada Office
401 Richmond St. W
Studio 204
Toronto, Ontario
M5V 3A8, Canada
British Columbia Office
Victoria City Hall
1 Centennial Square
BC V8W 1P6
Québec Office
Montréal City Hall
275 Notre-Dame St E
QC H2Y 1C6
Central America & the Caribbean
Mexico, Central American and Caribbean Secretariat
Eje Central Lazaro Cardenas 13
Building Miguel Abed, Floor 5 Of. 506 and 507,
Col. Centro, CP 06050 Del.
Cuauhtemoc, Mexico City, Mexico
South America
South American Secretariat
Rua Marquês de Itu 70, 14° andar.
São Paulo, SP, Brasil
CEP 01223-000
Colombia Office
Carrera 53 N° 40A - 31,
Medellín, Antioquia – Colombia
Argentina Office
Boulevard Gálvez, 1150 Planta Alta.
Rosário, Santa Fé, Argentina
South Asia
South Asia Secretariat
c, 3, Green Park Extension Road, Block B, Green Park Extension, Green Park, New Delhi, Delhi, India
Southern Center
Door No. 6-3-596/47/2
Sri Venkata Ramana Colony
Hyderabad 500 004
Andhra Pradesh
East Asia
East Asia Secretariat
14/F, Seoul Global Center Building, 38 Jongno, Jongno-gu, Seoul, South Korea (110-110)
Japan Office
1-14-2 Nishi-Shimbashi,
Tokyo, Japan 105-0003
Kaohsiung Capacity Center
4F. No.436, Daye N. Rd.
Xiaogang Dist.
Kaohsiung City 812
Taiwan (R.O.C.)
Korea Office
217-59 Kintex-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10390, Republic of Korea
Beijing Office
B1010 Xiaoyun Center, No. 15
Beijing 100125,
Southeast Asia
Southeast Asia Secretariat
c/o The Manila Observatory Ateneo de Manila University Campus Loyola Heights, Quezon City 1101 Manila, Philippines
ICLEI Indonesia Project Office
Jl. Karbela Sel. No.46, RT.2/RW.4, Kuningan, Karet, South Jakarta City, Jakarta 12940, Indonesia
Oceania Secretariat
l8/225 Bourke St, Melbourne VIC 3000, Australia