The fight against climate change requires urgent action. The challenges are global, but many of the solutions are local. This is why Realdania has entered into a partnership with C40 – a global network of mayors from the world's leading cities working together to reduce greenhouse gas emissions and increase cities' resistance to climate change.

Realdania has supported C40 since 2013 in partnership with two of the world’s most ambitious philanthropists, Bloomberg Philanthropies (US) and The Children’s Investment Fund Foundation (UK). 

Sharing solutions

C40 is created by cities for cities to share knowledge and good practice on climate action across national borders. The member cities work with urban development defined in the broadest sense, including housing and construction, traffic, and waste management.

Today, the C40 network consists of 96 of the world's largest and most innovative cities. The member cities represent more than 650 million people and 25% of the world's gross domestic product. 

Copenhagen as key city

Although Copenhagen is one of the smallest cities in the network, the Danish capital plays a key role as one of the world's most innovative and green cities. Copenhagen is a C40 innovation city and heads the C40 Green Growth Network. Copenhagen also houses the network's international office, which is part of BLOXHUB – an innovation hub for sustainable urbanisation, which Realdania has established in cooperation with the Ministry for Industry, Business and Financial Affairs and the City of Copenhagen.

City Solutions Platform

C40 has developed the City Solutions Platform to help foster innovative and effective public-private collaboration. The platform is a neutral space for cities to work with the private sector and academia to identify new climate solutions. 

When working together, the public and private sectors can drive the necessary innovation and financing for achieving the international goals set out in the Paris Agreement and the Sustainable Development Goals. Public-private collaboration can increase climate action by directing private sector knowledge, skills, resources, experience, and in some cases funding to key climate challenges within cities. 

Over 100 businesses have taken part in the City Solutions Platform so far, including large global companies as well as local companies in each city, innovative start-ups, and start-up accelerators and universities. 

Global knowledge for Danish cities

It is Realdania's ambition that the huge pool of knowledge on climate action which is developed and disseminated in the C40 network should also benefit Danish cities. Accordingly, Realdania works to ensure that the knowledge gathered in the C40 network is made available to Danish municipalities and companies – in part through the Global Covenant of Mayors initiative, where municipalities receive help and inspiration to reduce their greenhouse gas emissions, and in part through the City Solutions Platform, where innovative Danish companies have the opportunity to work with the C40 cities to solve urban challenges.  

Contact Realdania

Pelle Lind Bournonville / Project Director

As a capital city, Copenhagen takes on its responsibility to develop and present new solutions to global challenges, such as reducing CO2 emissions worldwide. Copenhagen is one of the 96 selected cities in the C40 network and among the few to have the honourable status of innovation city. Copenhagen is in charge of the C40 Green Growth Network and is actively working to raise awareness of the city's sustainable solutions that can benefit big cities around the world as well as the business community in Denmark. Bloomberg Philanthropies is a charitable foundation, founded in 2006 and headquartered in New York. Its mission is to ensure a better and longer life for the largest possible number of people. The ambitious goals are based on the experience of the founder Michael Bloomberg – one of the world's most successful businessmen and former mayor of New York.

Bloomberg Philanthropies focuses on five key areas for creating lasting change: public health, environment, education, government innovation, and arts & culture. 
Bloomberg Philanthropies
CIFF is an independent philanthropic organisation that aims to improve the lives of children in developing countries who live in poverty. CIFF believes that all children deserve to grow up in an environment that is safe and supportive. It is CIFF's view that climate change is one of the biggest threats to children living in poverty in developing countries. 

CIFF places significant emphasis on quality data and evidence and often work with partners to measure and evaluate progress to achieve large scale and sustainable impact.
CIFF - Children's Investment Fund Foundation