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Develop your climate tech idea and initiate local change!

At CATAL1.5°T’s Climathons you can collaborate, form teams, and brainstorm ideas for a net-zero future. Gain understanding of your local climate challenges and contribute to the global climate action movement.

Climathons bring citizens together to raise awareness and start local climate innovation.

At our Climathon, you join forces with other ideators, innovators and entrepreneurs. Together, we collaborate on ideas for climate tech solutions to solve your local climate challenges.

The events help to raise awareness of the fight against climate change, strengthen local ecosystems and initiate concrete action.

We aim at turning your climate tech ideas into transformative solutions and lay the foundation for community activation, while shaping city planning and policies.

What to expect at the CATAL1.5°T Climathons?


Work on your passion

Address your local climate challenges: We provide training, mentorship, and resources to support the development and implementation of your sustainable solution.


Connect with others and form a team

In 12–48 hours, you get to know other climate innovators from your region and build a network. Together, you collaborate on your climate tech ideas.


Develop your ideas

From kick-off to presentation, follow a structured flow of team building, challenge understanding, idea brainstorming and visioning, creation and validation.


Strengthen your local ecosystem

By the end, your idea is ready for the next step: prototyping and making a positive impact on your region and climate change.

Applications for our Climathons are open

Who can apply? Everyone with a promising idea, passion to address local climate challenges or motivation to collaborate on innovation. This sounds like you? Then find a Climathon near you and tackle climate change from the ground up with us.
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Get insights and inspiration

Dive into insights from our ongoing and completed programmes, best practices and lessons learned as we work together to build climate ventures for a net-zero world.
Go to insights

Frequently asked questions

You’ve got questions? Here you can find answers. If you have further questions, contact us via the contact form below.

Our other programmes for start-ups

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Go to pre-accelerator

Our pre-accelerator for climate tech start-ups provides you with training, technical support and funding. Let’s take your prototype to the next level!
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Your climate venture is already well on its way to making a positive impact on climate change? Prepare to successfully navigate the challenging growth phase – with training & coaching, networking and repayable grants!

Want to support climate ventures in your area?

In our trainings you learn more about climate tech, ESG and DEI and strengthen your network.

Looking for promising investment opportunities?

We connect you with climate ventures, that take ESG seriously and have expert-validated impact forecasts.