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#climatechallenge lives from the fact that it is lived, carried on and further developed by numerous people. Our heartfelt thanks go to all of them! Among them are lecturers at universities, teachers - and above all students.


You have questions or comments, compliments and criticism? Then write to us at




Ilmari Binder

Lecturer of the #climatechallenge seminars

Maike Sippel

Professorship for Sustainable Economics, HTWG Konstanz

Markus Szaguhn

Transformative research

Ilmari Binder

  • has been giving #climatechallenge seminars at HTWG and university in Constance since the winter semester 2020/21

  • project manager for "CO2ero - klimaneutrae Waldorfschulen Jetzt"

  • studied psychology at the University of Konstanz

  • during studies engagement for sustainable development at Konstanz University of Applied Sciences and University of Konstanz

Markus Szaguhn

Prof. Dr. Maike Sippel

Maike is the creator of the cartoon males that cavort on the website.

Raphael Buhrmann

  • since January 2023 in the team #climatechallenge

  • responsible for public relations

  • keeps the website and the Instagram account up to date

  • always looking for new interesting contributions

  • Student at the Konstanz University of Applied Sciences in the study program Environmental Engineering and Resource Management



For some time now, Manuel Östringer has been part of us and continues to hold CC courses - and, amazingly, alongside his PhD in physical chemistry.
Manuel studied chemistry and is generally very committed to the change towards more sustainability. He is and has been active in activism, gives talks on climate crisis, tries to persuade politicians to do more on climate protection, and argues with municipal utilities about heat transition concepts.

Sozialwissenschaftliche Auswertung in Zusammenarbeit mit:

Dr. Thomas Wöhler

Surveylab, Soziologie, Universität Konstanz


  • Lea Hungerhoff - who has done the public relations work for a long time, expanded the website and, last but not least, always produced new, crisp content

  • Sarah Steeb - who helped us with the website and Instagram during the summer semester of 2021

  • Anne Klenge - who brought the Instagram account to life

  • Aline Christoph - who as a communication designer not only gave us the beautiful colors

  • Johanna Geiser, Joshua Lange, Alexander Rüede-Passul and Ann-Kathrin Straßer - who, together with Anne Klenge, are part of the first generation of coaches trained in the #climatechallenge Academy

  • Florian Jungheim - who wrote his bachelor thesis in 2018 on CO2 calculators to be used for #climatechallenge

  • Nadine Nowotny - who supported the project in 2018 and conducted 3 pilot applications of #climatechallenge as an employee action in companies in her bachelor thesis

  • Annika Kreuzer - who supported the project in 2017/2018 (before she left for the whales), laying the groundwork for this website

  • Hannah Junker, Corina Muhr, Doris Müller, Jorrit Friedrich, Marius Reichenbach, Robin Schoger - who prepared our Constance workshop during the winter semester 2017/2018

  • Tim Rieger & Johannes Rössler - who worked on how #climatechallenge could go viral in the winter semester 2016/2017



#climatechallenge continues to develop through various sub-projects, each of which is independent. Smaller project grants support this development - e.g. through:

  • CampusWELTApplication

  • Ministry for the Environment, Climate and Energy Management Baden-Württemberg

  • Small Research Program of the Institute for Applied Research of the HTWG Konstanz

A very warm thank you :-)

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