City Networks

City networks and projects ensure that Berlin has close ties to the metropolitan regions and cities of Europe and the rest of the world. These city networks give Berlin a platform for the constant exchange of ideas and experience and for project-related cooperation between cities and metropolitan regions. The focus here is on issues that pose special challenges for these regions and cities at the beginning of the 21st century: climate change, the economy, science, culture, urban development, and social integration.



The city network organization C40 is committed to joint action by cities to counter climate change. Berlin is a founding member and one of the megacities in this network. C40

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Climate Alliance

More than 1,500 cities and municipalities are members of the Climate Alliance. Their goal is to lower carbon emissions in urban areas and, in responsible partnership with indigenous peoples of the Amazon River basin, to advocate more climate protection. Climate Alliance



With Eurocities, Europe’s largest cities have formed a union to deal with the urban issues they all face. EUROCITIES


International Cities of Refuge Network (ICORN)

Berlin is an open, outward-looking city and is using its influence to promote human rights as a member of this network. Together with more than 60 other cities, Berlin has committed itself to offering artists a refuge. International Cities of Refuge Network (ICORN)

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Mayors for Peace

“Mayors for Peace” is a peace network for mayors who are campaigning for a world without nuclear weapons. Mayors for Peace


Rainbow Cities Network (RCN)

The Rainbow Cities Network works on the local level to fight discrimination on the basis of sexual orientation and gender identity and to promote the acceptance of sexual and gender diversity. Rainbow Cities Network (RCN)


Solidarity Cities

This network originated in an initiative by mayors who are united in their support for taking in and integrating refugees and asylum seekers. Solidarity Cities