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

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

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

Our activities and action plan

Every three years, ICLEI commits to a Strategic Vision. Our action plan of hundreds of activities around the world gives a roadmap for how we will fulfill this vision.

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WHAT WE DO

ICLEI's network of impact

ICLEI is engaged in hundreds of activities in more than 2,500 cities, towns and regions worldwide. Our activities, guided by five interconnected pathways, are designed to facilitate integrated sustainable urban development.

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ICLEI in numbers

Our Impact

465+

global activities

2500+

local & regional governments involved

1200+

local & regional governments reporting climate actions

560+

jurisdictions committed to climate action by 2030

multilevel action for stronger national climate plans

The road to COP30

Looking ahead to COP30 and the next round of Nationally Determined Contributions (NDC 3.0), what cities and regions do in advance of this global climate summit may matter more than the conference itself. On the road to Belém, local and regional governments have a unique opportunity to engage with their national governments, shift the trajectory of the climate emergency, and push for inclusive, multilevel climate action.

Active
  • Circular development
  • Nature-based development
  • Resilient development
Local Governments and Municipal Authorities (LGMA) Constituency

Despite being on the frontlines of climate impacts and responsible for a significant share of emissi...

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Active
  • Circular development
  • EO
  • Nature-based development
  • Resilient development
Town Hall COP Initiative

Every year, national governments from all over the world gather to discuss their climate goals and a...

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Active
  • Circular development
  • EO
  • Nature-based development
  • Resilient development
  • Zero emission development
Daring Cities 2025

The climate leadership gap following COP29 has made local and regional governments more essential th...

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Active
  • EO
  • Resilient development
CHAMP: Coalition for High Ambition Multilevel Partnership for Climate Action

As the world grapples with the harsh reality of falling off the Paris Agreement track, the COP28 Coa...

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OUR IMPACT

How ICLEI is working across the globe

Every year, ICLEI’s works on hundreds of activities with thousands of cities, towns and regions around the globe

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The links between plastic pollution and globalisation

Plastics

As the world nears the possible conclusion of the global plastics treaty at INC-5, ICLEI continues to champion the essential role of local and subnational governments in ending plastic pollution. From managing waste systems to pioneering circular economy solutions, local governments are already on the front line of the plastics crisis. Through the Local and Subnational Governments Coalition to End Plastic Pollution, ICLEI and its partners are pushing for stronger recognition, resources, and decision-making power for cities and regions, where implementation truly happens.

Active
  • Circular development
PlastiCircle

In the European Union, around 25.8 million tonnes of plastic waste is produced each year. Not even...

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Active
  • Circular development
  • Zero emission development
Global Local Government Forum in Conjunction with Global Plastic Treart INC-5

ICLEI Korea Office and the World Secretariat hosted a forum in conjunction with INC-5 to support The...

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Active
  • Circular development
  • Resilient development
Alliance + ICLEI Developing Plastic Waste-Free Cities
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Active
  • Nature-based development
  • Resilient development
  • Zero emission development
Towards circular economy in the plastic packaging value chain

Plastics production has surged over the past 50 years, from 15 million tonnes in 1964 to 311 million...

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Featured city

Boulder, USA

An ICLEI Member since 2007, Boulder, Colorado is a pioneer in sustainability, known for bold circular economy initiatives and strong community engagement. From its early Trash Tax to a 70% reduction in plastic bag use, the city continues to lead on waste reduction with equity in mind.

Under Mayor Aaron Brockett’s leadership, Boulder is advancing toward a reusable future, combining incentives, statewide bans, and upcoming local regulations to phase out single-use plastics and promote long-term, circular solutions.

Our five pathways

How we are working across the five pathways

With more than 2500 cities, towns and regions from around the world engaged in our work, ICLEI is the largest network of local and regional governments committed to sustainability

ICLEI World Secretariat
Europe
European Secretariat
Leopoldring 3
79098 Freiburg, Germany
iclei-europe.org
Brussels Office
Av. de Tervuren 35
1040 Bruxelles
Belgium
Berlin Office
St. Oberholz ROS Team Room 4.02
Rosenthaler Str. 72a
10119 Berlin
Germany
Africa
Physical address:
Unit 1, 2nd Floor,
South Tower
Sable Park, 14 Bridge
Boulevard
Century City
Cape Town
South Africa
Tyger Valley, South Africa
africa.iclei.org
ICLEI Africa Foundation
Ebène Junction, Quatre Bornes, Mauritius
North America
USA Office
536 Wynkoop St.
Suite 901
Denver, Colorado
USA 80202
www.icleiusa.org
Canada Office
401 Richmond St. W
Studio 204
Toronto, Ontario
M5V 3A8, Canada
www.icleicanada.org
British Columbia Office
Victoria City Hall
1 Centennial Square
Victoria,
BC V8W 1P6
www.icleicanada.org
Québec Office
Montréal City Hall
275 Notre-Dame St E
Montreal,
QC H2Y 1C6
www.icleicanada.org
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
www.iclei.org.mx
South America
South American Secretariat
Rua Marquês de Itu 70, 14° andar.
São Paulo, SP, Brasil
CEP 01223-000
americadosul.iclei.org
Colombia Office
Carrera 53 N° 40A - 31,
Medellín, Antioquia – Colombia
americadosul.iclei.org
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
southasia.iclei.org
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)
eastasia.iclei.org
Japan Office
1-14-2 Nishi-Shimbashi,
Minato-ku
Tokyo, Japan 105-0003
japan.iclei.org
Kaohsiung Capacity Center
Xiaogang District, Kaohsiung City, Taiwan
icleikcc.org
Korea Office
217-59 Kintex-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10390, Republic of Korea
www.icleikorea.org
Beijing Office
B1010 Xiaoyun Center, No. 15
Beijing 100125,
China
Southeast Asia
Southeast Asia Secretariat
c/o The Manila Observatory Ateneo de Manila University Campus Loyola Heights, Quezon City 1101 Manila, Philippines
icleiseas.org
ICLEI Indonesia Project Office
Jl. Karbela Sel. No.46, RT.2/RW.4, Kuningan, Karet, South Jakarta City, Jakarta 12940, Indonesia
Oceania
Oceania Secretariat
l8/225 Bourke St, Melbourne VIC 3000, Australia
www.icleioceania.org