Panel discussion

What happens after GREEN CHALLENGE? Celebrate 15 years of sustainable innovation at DTU Join us for this year’s inspiring panel at GREEN CHALLENGE 2025 an opportunity to hear what happens after the spotlight fades.

Date: 27 June 2025
Time: 15:30–16:20
Place: Skylab Stage, DTU

Three former participants return to DTU to share how GREEN CHALLENGE shaped their careers, values, and real-world impact.

  • How did the experience influence their path?
  • What did it mean to win – or not win?
  • How has their view on sustainability evolved since they stood where you are now?

Meet the three former DTU students for an open-hearted discussion about the future of sustainability, engineering and career choices.

Whether you’re a student seeking inspiration, a teacher nurturing the next generation, or part of industry driving the green transition, this is your moment to connect, reflect and engage.

Moderator: Charlotte Koldbye - science journalist, author, and communications advisor


Mads bonde

Winner in 2010

Mads is an entrepreneur, leader and researcher with a focus on radical innovation in education and biotech.
He is the chairman and founder of Labster, a laboratory simulation platform used by millions of students at universities globally.

caroline tromer dragsdahl

Participated in 2017

Caroline is the former President of Polyteknisk Forening. Currently a Product Manager at Novo Nordisk and board member in multiple organisations. She is driven by a vision of how technology can create a more sustainable and people-centered future.

johan c. s. vangstrup

Winner in 2021

Johan is the the founder of Paint’R along with Sofie Winge-Petersen and Victoria Søgaard. Paint’R is a young company that has developed an innovative and more sustainable packaging solution for the painting industry.