Hans Stier
Berlin, Germany
Campaigns I'm On
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Help start a coffee revolution: Fair income for farmers, fresh coffee for consumers!
Campaigns I've Funded
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StartupBus is a 5 days hackathon on wheels through Africa. 40 people are driving 2500km and have to conceive, build & launch a startup.
Campaigns I'm Following
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Help start a coffee revolution: Fair income for farmers, fresh coffee for consumers!
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Solar panels that you can drive, park and walk on. They melt snow & cut greenhouse gases by 75% ?!!! -
A simple device that attaches to any door for neck pain relief in just ten minutes or less.