The 2019 edition of Cities100 provides recognition for 100 of the boldest projects from leading cities around the world working to address sustainability and build a greener future. The publication highlights solutions that are replicable and scalable, working to lower emissions and address the issues that cities face as a result of global climate change. The final selection of 100 solutions will be announced at the C40 Mayor's Summit in Copenhagen in October 2019.

 Showing ground-breaking city solutions 

Cities100, now in its fourth year, is a publication by Nordic Sustainability and C40 Cities which seeks to identify, connect and communicate the most ground-breaking solutions to the problems of climate change that impact cities today. The final 100 city solutions will serve as a guide to creating the resilient and sustainable urban environments of the future.

Cities100 aims to:

Ensure that cities demonstrating true leadership in addressing climate change are globally recognized;

Share highly replicable ‘best practices’ across cities and draw attention to outstanding performances and integrated solutions that have achieved a high level of success.

The Cities100 will give cities:

Prestigious recognition on a global scale with the 100 selected projects announced during the C40 Mayors Summit 2019 in Copenhagen;

Extensive global media coverage for the cities and their projects;

Recognition via the Cities100 publication by C40 and Nordic Sustainability.

 Application Process 

Please note that the application period has ended. We thank everyone who applied to the Cities100 2019. There were two ways to nominate city climate solutions:

City Self-Nomination: The Mayor’s office or the relevant department within the city’s administration can submit applications for the 2019 edition of Cities100. 

Third-Party Nomination: Third-party organisations are welcome to nominate projects  such as, but not limited to:

• International and national city organizations;

• Environment and urban planning-related not-for-profit organizations and charities;

• Relevant finance and development organizations, international development banks;

• Relevant environmental and urban planning research bodies, academic institutions.

In order for an application to be submitted by a third-party, C40 and Nordic Sustainability require the third-party organization to provide written evidence that the city they are nominating endorses the application. Either a formal endorsement letter or email from the city official can be added to the application and uploaded at the end of the online application form.

Explore the 2016 & 2017 publications.