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The cow fart-machine

Name:

Munich 1

Age:

City:

Munich

Country:

Germany

Thema:

Food & climate action

Reward:

Finalist of the Global Children's Design-a-thon 2019, Germany

The farts from the cows are collected by the cow fart machine (one for inside in the winter, one balloon-like one for in the summer, when the cows are in the field) and you can put them in the air-cleaner, where the CO2 is changed into O2.