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Wolfgang Hiltscher

Location: Göttingen, Germany

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Wolfgang Hiltscher

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Tatu Pohler

3F swiss monsoon syste...

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3F swiss monsoon systems are the tech...

Die verheerenden Waldbrände...

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Meet the finalists

Marco Cremona

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Shortlist

Marco Cremona

Sustainable Water Recy...

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Currently 3/5 Stars.

Craig White

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Currently 2.5/5 Stars.

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Mark Mullen

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Sameer Hajee

Clean lighting for imm...

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Gilles Gallo

SOLAR-COOKER-BY-ID-COOK

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Kresse Wesling

The Elvis & Kresse Org...

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Currently 2.5/5 Stars.

John Armstrong

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Mathew Holloway

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