Where cities
meet solutions

ChangeNOW organizes a dedicated program to identify relevant solutions

to the specific needs of each city.

This program took place on a digital format on Thursday 27th and Friday 28th of May 2021 during the ChangeNOW Summit.


During our last edition, on May 2021, the program was held in a digital format. The stage sessions and the workshop remain available on our platform (for free) and on YouTube.

2021 Cities Program on Replay

Cities Opening Ceremony


Including the participation of his Serene Highness Prince Albert II of Monaco, Anne Hidalgo, Mayor of Paris, and Bertrand Piccard, Founder and Chairman of Solar Impulse.


Replay on Youtube: here

Replay on the platform: here


Resilient Cities


Discover the Resilience Strategy of the city of Paris with Célia Blauel, Paris Deputy Mayor in charge of Prospective Paris 2030, Resilience and the river Seine.

Learn how Kotchakorn Voraakhom, Porous City Network, Founder and CEO, is using landscape architecture to adapt cities to climate
Understand Kate Raworth’s Doughnut Economics and how it is concretely being deployed in Amsterdam and Bruxelles. A discussion with Kate Raworth, Marieke Van Doorninck, City of Amsterdam Deputy Mayor, and Barbara Trachte, Brussels-Capital Region Secretary of State Responsible for Economic Transition and Scientific Research.



Replay on Youtube: here

Replay on the platform: here


Financing Local Transition

Relevant actions to transition a city into a sustainable and low carbon territory require important changes when it comes to defining the city’s budget. This session shows which mechanisms can help cities take the path of rethinking how they allocate their budget. How to include environmental and social criteria in the decision-making process, how to include the participation of its citizens through a participatory budgeting or where to find additional financial resources if needed to start transitioning.


With Maxfield Weiss (Europe Managing Director, CDP), Adalberto Barreto (Representative of Participation Division, City of Lisbon), Arnaud Leroy (Président du conseil d’administration, ADEME), Gérard Blanchard (Vice President in Charge of Carbon Neutrality, City of La Rochelle), Thierry Déau (Founder and CEO at MERIDIAM), Magnus Berntsson (President, Assembly of European Regions), Cora Smelik (Regional Minister for Sustainable Development , Province of Flevoland).
Moderated by Emilie Maehara (FMDV, Deputy Director).


Replay on Youtube: here

Replay on the platform: here

Planning the Sustainable City

How urban planning is key to successfully transitioning a city to a sustainable territory and which components should be considered when it is developed. A discussion between Sébastien Maire (France Ville Durable, Executive Director,) Xavier Matilla (Barcelona City Council, Chief Architect), and Meka Brunel (Gecina, CEO).

Moderated by Elisabeth Laville (Founder, Utopies).


Replay on Youtube: here

Replay on the platform: here

Organizing the Transition

If you would like to know how a government, a city or a company can concretely transition to a low carbon and more sustainable world, you definitely need to check this session!

Jean-Marc Jancovici, The Shift Project President, presents his plan to transform the French Economy.

Two cities which are leading change at a local level present their actions. A discussion between Jess Scully, City of Sydney Deputy Lord Mayor, and Katarina Luhr, City of Stockholm Vice Mayor for Environment and Climate.

How companies can lead by joining the The Science Based Targets initiative (SBTi). Explained by Heidi Huusko, United Nations Global Compact and Science Based Targets initiative (SBTi) Senior Manager & SBTi Steering Committee member.



Replay on Youtube: here

Replay on the platform: here

Circular Construction Materials

How circular economy applies to construction including new materials and how to
reuse old ones.


With Sébastien Duprat (CEO, Cycle-up), Pascal Eveillard (Director, Sustainable Business Development, Saint Gobain), Nicolas Cruaud (President, Néolithe), Carmen Santana (Archikubik).
Moderated by Sophie Rosso (Deputy CEO, Redman).



Replay on Youtube: here

Replay on the platform: here

Cycling to a Better World

Which initiatives and technologies are making possible the ongoing bicycle revolution.


With Lucille Alonso (CEO, ComforMap), Thomas Beaurain (Co-founder & COO, Zenride), Pierre Deron (Executive Director, Cleantech Open France), Pierre Forté (CEO, Pragma Industries), Marine Billis (Co-founder, Teebike), Ana Carboni (President, Brazilian Cyclists Union – UCB).


Replay on Youtube: here

Replay on the platform: here

Greater Equality of Opportunity

Strong actions that can be taken to make sure that minorities have access to the same opportunities as others. A thriving society is an inclusive one.


With Lord Mayor Hazel Chu (Lord Mayor, City of Dublin), Alexandre Mars (Entrepreneur & philanthropist), Thibaut Guilluy (Haut-commissaire à l’Inclusion dans l’emploi et à l’Engagement des entreprises), Ericka Cogne (Executive Director, Telemaque) and Chivona Renée Newsome (Co Founder, Black Lives Matter Greater New York).    



Replay on Youtube: here

Replay on the platform: here

Water for All

Solutions to use wisely our natural ressource water. Including recycling grey water at home or treating contaminated water with nature-based solutions to bring clean water for all.



Water for all with Sabine Stuiver (CMO & Co-founder, Hydraloop Systems), Pedro Tomas Delgado Ortiz (CEO, AguaInc), Anna Luísa Beserra (Founder & CEO, Safe Drinking Water For All), Philippe de Roux (Co-founder & CEO, Water & Life), and Kaveh Madani (Visiting Professor, Imperial College London). Moderated by Shooka Bidarian (TV presenter and producer / Environment Correspondent, Climate Reality Leader and Mentor, Marjan Television Network Climate Reality Project).



Replay on Youtube: here

Replay on the platform: here

Sustainable Cities Workshop


A selection of 10 solutions that can help cities solve their local issues. Each solution had 3 minutes to present in front of the city representatives.


Replay on our platform: here


Sustainable Cities Pitch Sessions


Promising solutions to solve cities’ sustainability issues, and which are looking to raise funds, will pitch in front of a qualitative audience of investors, media, companies, and potential customers such as cities.


Replay on youtube here and here

Replay on the platform here and here

Speakers in the sessions

Cities Booklet

Members of the delegation can be included in the Cities Booklet. 

This is a document featuring the top sustainability projects from the cities that participate in the program.


They attended the Cities Program: Monaco, Paris, Amsterdam, Rome, Marseille, Brussels-Capital Region, La Rochelle, Cologne, Sydney, Bogota, Lima,  Bordeaux, Stockholm, Cape Town, Prague and more.

A tailor-made experience for cities

Share and learn
from other cities

An opportunity in an intimate setting to explore how cities are supporting sustainability and innovation. Share your experiences, learn from others, build joint initiatives, network.

Identify concrete solutions
for your city

Through a tailored program, we identify and organize meetings with top entrepreneurs whose solutions concretely address the specific needs and interests of your city.

During the 3 days of the Summit


Visit selected solutions at the World Expo


meetings to meet solutions

With the support of our ecosystem partners

and our Program Partners


Economist and Co-Founder of Doughnut Economics Action Lab

Kate Raworth is an economist focused on making economics fit for the 21st century. Her book Doughnut Economics: seven ways to think like a 21st century economist is an international bestseller that has been translated into 18 languages, and was long-listed for the 2017 Financial Times & McKinsey Business Book of the Year award. She is co-founder of Doughnut Economics Action Lab, working with cities, business, communities, governments and educators to turn Doughnut Economics from a radical idea into transformative action. She teaches at Oxford University’s Environmental Change Institute and is Professor of Practice at Amsterdam University of Applied Sciences.





Founder and CEO, Porous City Network

“Kotchakorn Voraakhom is a landscape architect from Thailand who works on building productive green public space that tackles climate change in urban dense areas and climate-vulnerable communities. Opened in 2017, Chulalongkorn Centenary Park is the first critical piece of green infrastructure in Bangkok to reduce urban flood risk. With on-site water management, the park can collect, treat, and hold up to one million gallons of water, alleviating overwhelmed public sewage during heavy rainfall. In 2019, Thammasat Urban Rooftop Farm, Asia’s largest, was opened. Landprocess repurposed wasted rooftop space to address food and water scarcity in preparation for future climate challenges. In 2020, Chao Phraya Sky Park was realized. Once an inaccessible and incomplete sky railway, the old ruins are now whole, becoming the first realized bridge park to cross a river in any capital city in the world. Voraakhom is featured in 2019, TIME 100 Next, a list from TIME Magazine —that spotlights 100 rising stars who are shaping the future of the world. She is also on the list of 15 women fighting against climate change from TIME. This year she was named BBC100 Women, the Green 30 for 2020 by Bloomberg. Recently, she got an award from United Nations as Winners of the 2020 UN Global Climate Action Awards, Women for Results. Voraakhom is a chairwoman on the landscape without the border of the International Federation of Landscape Architects, Asia Pacific Region (IFLA APR). She is a TED Fellow, Echoing Green Climate Fellow, Atlantic Fellow. She received her master’s in landscape architecture from Harvard University’s Graduate School of Design.”




Deputy Mayor, City of Amsterdam

Marieke van Doorninck is Deputy Mayor for Spatial Development and Sustainability in Amsterdam since 2018. From 2006 until 2014 she was in City councillor for GroenLinks in Amsterdam. The last five years as Chairperson. Prior to her current role she was General Coordinator ASKV (Support Center for Refugees) en she was Duo Chairperson for Mama Cash, an organization that supports women’s rights.




Secretaryof State Responsible for Economic Transition and Scientific Research, Brussels-Capital Region





Deputy Mayor of Paris in Charge of Prospective Paris 2030, Resilience and the River Seine

In 2003, Célia Blauel graduated from the Institut d’études politiques of Strasbourg.

She became in 2006 an active member of the Green Party. In 2008, she was elected councilor of the 14th district of Paris. Following the municipal elections of March 2014, she was appointed Deputy Mayor of Paris in charge of ecological transition, climate, environment, water and sanitation. She also became chair-person of the state-owned company Eau de Paris, which produces and delivers drinking water to Parisians.

During her term of office, she initiated the implementation of the City of Paris’ Climate Plan, which sets carbon neutrality for the city by 2050. In 2015, she launched Paris’ Strategy on Adaptation to the Consequences of Climate Change.

Since the municipal elections of June 2020, Célia Blauel has been appointed Deputy Mayor of Paris in charge of Prospective Paris 2030, Resilience and the river Seine. Critical issues in the process of reinventing the Capital city, especially since the mandate started with a health crisis, followed by a scorching summer.




Deputy Lord Mayor, City of Sydney

Jess Scully uses creativity to engage people in the future economy and with urban life in the twenty-first century, working towards a sustainable and inclusive world. In 2019 she was elected as Deputy Lord Mayor of the City of Sydney and has been a councillor since 2016. Previously, Jess founded Vivid Ideas, Australia’s largest creative industries event; supported emerging talent through projects such as the Qantas Spirit of Youth Awards; sparked new thinking through TEDxSydney and transformed public space as a public art curator. She has also worked as a policy advisor, radio host and magazine editor. Her first book, Glimpses of Utopia, was published by Pantera Press in August 2020.




President, ADEME