Cities and local governments are not waiting for the world to change. We are changing the world together.

Park Won-soon
Mayor of Seoul & ICLEI President 2015-2018

ICLEI – Local Governments for Sustainability is the leading global network of over 1500 cities, towns and regions committed to building a sustainable future.

By supporting cities to become sustainable, low-carbon, resilient, ecomobile, biodiverse, resource-efficient; to build a smart infrastructure; and to develop an inclusive, green urban economy with the ultimate aim of achieving healthy and happy communities, ICLEI impacts 25% of the global urban population.

Based in Seoul, South Korea, ICLEI East Asia was founded in 2012 to support Members in the region achieving ICLEI’s 5 Pathways. We have developed local and regional programs and exchange platforms to accelerate sustainable and low-carbon development, including Green Public Procurement, East Asia Clean Air Cities, and Energy-safe Cities East Asia Program.


A growing global Network of local governments leading
the way in sustainable development.


We assist Members by engaging them in various levels of advocacy, programs, campaigns, networks and events to exchange knowledge and showcase their achievements.

A robust Movement of
local governments implementing innovative solutions on sustainability.


We support this movement by commitment processes, performance frameworks, programs, international exchange, thematic networks, strategic alliances and centers of excellence.

An effective Agency that supports local governments
to identify and implement radical solutions.


We provide advanced knowledge, innovative tools and methods, deliver training to local leaders, partners and decision makers to adopt practices and systems for urban sustainability.




ICLEI started with the idea that a single municipality has a significant impact.


ICLEI was founded in 1990 by 200 local governments from 43 countries who convened for the first World Congress of Local Governments for a Sustainable Future at the United Nations headquarters in New York. Operations started in 1991 at the World Secretariat in Toronto, Canada, and the European Secretariat in Freiburg, Germany.

ICLEI’s first global programs were Local Agenda 21, a program promoting participatory governance and local sustainable development planning, and Cities for Climate Protection™ (CCP), the world’s first and largest program supporting cities in climate action planning using a five milestone process to systematically reduce emissions.

As ICLEI’s programs and campaigns went beyond mere environmental aspects and embraced wider sustainability issues, the ICLEI Council formally broadened the mandate of the association in 2003, renaming the association ICLEI – Local Governments for Sustainability.

With the support of Seoul Metropolitan Government, ICLEI East Asia Secretariat was established in October, 2012.




  • We have built a global sustainability network of 1,500+ local and regional governments of all sizes in 124+ countries.

  • We work with local and regional governments through a network of 22 offices and thematic centers on all continents.

  • We have developed common methodologies and created innovative tools which have been applied all levels of government worldwide.

  • We have provided leadership in linking local governments to global policy processes and multilateral environmental agreements.

  • We have supported dozens of municipalities in the use of innovative sustainability management systems; and engaged dozens of global cities in biodiversity management.

  • 50,000+ local government staff have benefited from over 1,000 ICLEI capacity building events.

  • The efforts of 1,000+ cities participating in the CCP Campaign resulted in annual emissions reductions of 60+ million tons CO2eq.



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