Europe’s largest event for sustainable cities.


CityChangers, we have a date!

Lisbon | Portugal
April 1-3 | 2020

Stay Connected & Follow us

Simply enter your keyword and we will help you find what you need.

What are you looking for?

  /  Ketil Stoknes

Ketil Stoknes

Ketil Stoknes is Researcher and Project Leader at Lindum AS. They developed the first working circular system that converts food waste into fuel and new food. The waste digests to biogas, and vegetables grow on the CO2 and digester residue in a closed environment. With this circular system, the region around Tønsberg can now be part of a local cycle, where the people hand in their waste and get organic vegetables back. This gives them a whole new motivation for recycling.

Currently, they are focusing on improving the system further, making it even as productive and robust as conventional greenhouse production, all the time keeping it natural, fossil- and chemical free.


Circular Economy is business | Day 2, 16:00 – 17:30 | DOGA, D1 | Slides