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IPCC report is a wake-up call: We need serious transformation to achieve the 1.5-degree target

On 8 October 2018 in Incheon, South Korea, the IPCC released the Special Report on 1.5 Degrees

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ICLEI USA and NYC release first in-depth case study on NYC’s fossil fuel divestment decision

The case study shows that the principles and processes behind fossil fuel divestment are transferable to nearly any city, large or small, where the will to divest exists.

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ICLEI USA study identifies key factors driving greenhouse gas emissions changes in U.S. communities

Thousands of cities worldwide are quantifying their GHG emissions and tracking progress through periodic GHG inventories.

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5 pathways to systemic urban change

ICLEI has designed five interconnected development pathways that enable local and regional governments to implement change across entire urban systems.

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The Transformative Actions Program seeks local and regional climate projects to coach towards bankability

Through the TAP, local and regional governments receive support to develop concepts into low risk, high feasibility, high impact sustainable infrastructure projects.


ICLEI - Local Governments for Sustainability

ICLEI is the leading global network of 1,500+ cities, towns and regions committed to building a sustainable future.
Through our collective efforts, we impact more than 25 percent of the global urban population.


Our network in numbers


cities, towns and regions


countries worldwide


percent of the global urban population


percent of the global population

Learn more about the iclei network
Featured city

Buenos Aires

The City of Buenos Aires, Argentina has retrofitted 91,000 streetlights with light-emitting diodes (LEDs) and deployed a smart management system for all public lighting. As a result, the city has benefited from energy savings, decreased infrastructure and maintenance costs, reduced carbon emissions and enhanced safety and well-being among residents.

Read more.

Building a sustainable urban world

The ICLEI Montréal Commitment outlines our new vision
for how the ICLEI network will advance sustainable urban development worldwide.

Find out more
ICLEI membership application

Welcome to the new ICLEI website!

We are still working hard to fire it up, but in the meantime enjoy our beta version and feel free to inform us of technical issues should you encounter any.

Kaiser-Friedrich-Str. 7
53113 Bonn
T.+49-228/97 62 99-00 F.+49-228/97 62 99-01 Email:
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,
Africa secretariat
Physical address:
3 Knowledge Park
Century City
Cape Town
South Africa
Postal address:
PO Box 5319
South Africa
north america
Canada Office
401 Richmond St. W
Studio 204
Toronto, Ontario
M5V 3A8, Canada
Québec Office
Montréal City Hall
275 Notre-Dame St E
QC H2Y 1C6
British Columbia Office
Victoria City Hall
1 Centennial Square
BC V8W 1P6
USA Office
1536 Wynkoop St.
Suite 901
Denver, Colorado
USA 80202
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
Colombia Office
Área Metropolitana del Valle de Aburrá
Carrera 53 N° 40A - 31
Antioquia – Colombia
South America
South American Secretariat
Rua Marquês de Itu 70, 14° andar.
São Paulo, SP, Brasil
CEP 01223-000
South Asia
South Asia Secretariat
C-3, Lower Ground Floor Green Park Extension New Delhi - 110016, 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
(16429) 3F, Suwon Research Institute,
126, Suin-ro, Gwonseon-gu, Suwon-si,
Gyeonggi-do, 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
Level 1, 200 Little Collins Street Melbourne, Victoria 3000, Australia
ICLEI World Congress 2018
Associate Partnership