Climathon Geneva


Thursday, 30th of November 2023

Hour: 13:45 – 17:00

Location: Impact Hub Geneva

Price: free

Registration: alone or in group

At Impact Hub Geneva, we believe in the power of collaborative and local action to tackle climate change. That’s why, in collaboration with the Canton of Geneva, we’re inviting you to take part in the Climathon!

This Climathon will be a special adventure in two phases: you can take part in one, or the other, or both!

  • Phase 1, on Thursday, 30th of November 2023, during the Climate Week organised by the City of Geneva.
  • Phase 2, during the Explore Demain festival organised by the Département du territoire in April 2024, by and for you!

This Climathon belongs to you! We invite you to join us in this challenge and help us turn YOUR ideas into reality.

In fact, during this first phase, we’ll be starting with citizens’ proposals from the “Cahiers de la Transition”*. On this basis, you will co-define the future of these proposals together, and will be supported by representatives and experts from the City and the Canton to help them become reality!

This will be a time for enriching discussions on the feasibility of these proposals, with the aim of refining them by identifying the challenges they raise. These challenges will guide us towards a second phase in 2024, at the Explore Demain festival, where other stakeholders will join you to hack these challenges and move towards making the solutions a reality.

We hope to achieve the following objectives:
Strengthen and support your commitment by helping you mobilise the resources you need to take action.
Build together on your ideas and proposals to create a concrete movement for change, while encouraging collaboration and sharing with a wider audience in the process.
Exchanging ideas and values to raise awareness of climate issues, while proposing and discovering new solutions through collective intelligence.

Are you ready to make a difference?
The Climathon Genève 2023 is much more than just an event: it’s an opportunity to make an active contribution to the fight against climate change by hacking through the challenges to turn your bold ideas into reality, while collaborating through collective intelligence with committed and creative minds.


*What are the “Cahiers de la Transition”? In concrete terms, the Cahiers de la Transition are an initiative of Genève en Transition, which in 2022 brought together citizens’ proposals and ideas on the ecological transition. The aim was to highlight how you, the citizens, feel about the issues and problems of this transition and to hear your proposals. As a result, we are working with Genève en Transition to put some of these proposals into action as part of this Climathon.


The event is free, so register early as places are limited!

Climathon in numbers

145+ cities
in the world
4 cities
in Romandy

6000+ participants

600+ ideas

Last editions’ challenge

Climathon 2022

Carbon neutral future of Geneva 2050


When communication rhymes with action 

In order to create a better future and quality of life, More people in Geneva are willing to make changes to attain an improved air quality, green spaces, less noise and stress and a more healthy and balanced lifestyle. This year’s Climathon raises very important questions regarding this topic.

  • Who are the influencers, and ambassadors who can raise awareness and amplify actions on the ground? Who are the ambassadors of climate issues and how to engage them to get involved in these climate issues?
  • What are the obstacles and opportunities of the different partners on the Geneva territory and of the factors influencing behaviours and the margin potential?
  • How to engage young people in climate issues and set up regular intergenerational dialogues and report concrete actions together?
  • How to measure the effectiveness of an awareness campaign? What indicators are important to you?
  • How can we provide a communication assistance offer for actors who do not have the means but whose mission makes it possible to raise awareness among the general public (grants, financial aid, mentoring, expertise, a common fund, etc.)?
  • What kind of platform can be created to give visibility to all actors and their solutions?

All these questions and more, are the main concern of this year’s Climathon. So will you be able to rhyme communication with action? 

 What to expect for these 24 hours?


In teams of 4 to 5 people, you will follow a “Design Thinking” process, a human-centered innovation management methodology initiated at Stanford University, and you will be asked to support your concept in a pitch format.


Validated by a jury of local experts, the winning teams’ solutions are intended to be deployed on a real scale, with the support of the organisers and partners.

📌 Challenge 1
“Imagining Geneva’s carbon-neutrality in 2050″

Despite the growing number of solutions for achieving carbon neutrality, the scale of the work required to reach this goal remains elusive.

It is therefore more than necessary to imagine what a world where humans emit virtually no greenhouse gases will look like in the future. 

After having consulted experts, the Canton is now turning to its citizens to imagine possible futures. It invites you to create and share your vision of a carbon-neutral future in 2050 during the 2021 edition of the Geneva Climathon.

Shifting polluting activities to less carbon-intensive sectors or changing social norms and consumption behaviours, you can move in the direction that speaks to you most in order to hack this challenge.

📌 Challenge 2

The challenges of the past 2021 edition:

“Second-hand market: an opportunity to promote sustainable fashion”

The fashion industry generates about the same emissions as the entire global airline industry.  

The secondhand / vintage sector is increasingly challenged – and plays an important role – in providing solutions to reduce the global waste of natural resources and to reduce its CO2 footprint. 

With this challenge, you will have the opportunity to look at the circular economy, including sustainable fashion, through the second-hand market. More precisely, you will explore and find new ways to get more people interested in and excited about secondhand fashion. 

Through ideation, the objective is to find new solutions that keep vintage clothing into active use and thus reduce the need for new goods to be produced in the first place.  

📌 Challenge 3
“The Citizen Challenge”

With its 3 themes submitted to a crowdfunding process, in partnership with SIG-Impact, the Citizen’s Challenge gives voice to the citizens of Geneva so that you can decide your climate priority.

Support one of the 3 themes of this challenge :

  1. Urban agriculture in Geneva: the solution for the climate and social integration?
  2. How to engage Geneva’s major actors in the fight against climate change?
  3. What role can blockchains play in achieving the Sustainable Development Goals?

The challenge that first reaches the 100% funding target will become THE Citizen Challenge to hack at the 2021 edition of the Geneva Climathon. 

organised by

funding partners

knowledge partners