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This is the archive site of Global Sustainability Jam 2011-2018. From 2019 on please visit

Adventskalender by Mixed Berries

Parents: bring home something more than just a box of chocolates.

We've talked to parents all over Cologne, and we get it - talking to your kids about sustainability sucks. It's tricky, complicated, and sometimes even a bit boring.

Our minions at Mixed Berries have been working around the clock thinking up solutions to bring sexy back to sustainability – and by gosh, we've done it!

We've re-mixed an old German tradition into a Trojan horse for sustainability filled with fun facts and challenges that will make learning about saving the world fun.

This year bring home something more than just a box a chocolate. Bring back a an Adventskalendar that will make the world a better place.

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Team members

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