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

UN Climate Action Summit

Held in New York on 23 September 2019, the Summit offered a unique platform for Heads of State and Governments to focus specifically on climate change.


The UN Climate Action Summit featured nine interdependent tracks and nineteen leading countries. The aim was to boost momentum, raise ambition, and deliver on the Nationally Determined Contributions (NDCs) through bolder targets and swifter implementation.

Local and regional governments were able to once again successfully demonstrate their key role through the Infrastructure, Cities and Local Action track, which included thematic initiatives on buildings, transport, resilient urban poor and finance.

Nationally, commitments mostly led by smaller and island nations already disproportionately facing the threats of climate change, while the major world economies mostly disappointed with their lack of enthusiasm in scaling up action.

Montréal Mayor Valérie Plante addresses United Nations on behalf of cities

Mayor Plante pledged to the UN to reduce the emissions of greenhouse gases (GHG) of her city by 55% by 2030, compared to the level of 1990 and is ready to go even further.


Tree in cities challenge

A bold new campaign to promote climate action by planting trees in cities. ICLEI Members Tirana (Albania), Victoria (Canada), Bonn (Germany) and Helsingborg (Sweden) are the first on board with the challenge. To this extent, ICLEI initiative CitiesWithNature is already serving as a platform for local governments to share their efforts on nature-based development, and could help boost the effectiveness of this new campaign.

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Multilevel and multi-stakeholder global forum towards 2030

A new 10-year initiative to connect local governments to global partners that builds on the success of the Resilient Cities Congress, hosted in Bonn since 2010. This new forum will be held in tandem to the annual UN Bonn Climate Change Conference, and supported by year-round monitoring activities with customized inputs into global decision-making processes and milestones.

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Press Conference, 21 September 2019

Nature-based solutions for cities

By WRI-D Frances Seymour, Distinguished Senior Fellow; UNECE- Jean Rodriguez, Spokesperson and moderator; ICLEI- Gino van Begin, Secretary General, on nature-based solutions for cities.

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22 September 2019

Infrastructure, Cities and Local Action – Partnerships for Ambition, Climate Action Summit 2019

Partnerships for Ambition: Unlocking the Full Potential of Local Climate Action. High level platform to highlight the critical need for urban transitions, demonstrate what subnational leadership and collaborative action between all level of government looks like and put the urban agenda at the heart of national and international priorities.

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Official Agenda

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Infrastructure, Cities and Local Action track

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Closing Press Release

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Past events

COP25, Madrid Climate Change Conference,
2 – 13 December 2019

The Madrid Climate Change Conference will take place at IFEMA – Feria de Madrid in Madrid, Spain from 2 to 13 December.


Contact us

To learn more and get involved in our global advocacy, contact Yunus Arikan, Head of Global Policy and Advocacy, at yunus.arikan(at)iclei.org

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
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
Rasuna Office Park III WO. 06-09 Komplek Rasuna Epicentrum Jl. Taman Rasuna Selatan, Kuningan DKI Jakarta, 12960, Indonesia
Oceania Secretariat
l8/225 Bourke St, Melbourne VIC 3000, Australia