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Katrin Hessler

Location: Köln, Germany

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Katrin Hessler

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Elpis – the Online Social Network for...

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Meet the finalists

Marco Cremona

Sustainable Water Recy...

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Currently 3/5 Stars.

Craig White

Photosynthetic Archite...

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Currently 2.5/5 Stars.

Mathew Holloway

Artica – Eco Friendly...

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Currently 2.5/5 Stars.

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Hot discussions

Solar Power Generator

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That was interesting.

Kazakhstan tanneries

by Karim Jaroudi

any info about leather tanners in Kazak?

Should we be encouraging en...

by FishBowl Inafishbowl

Inafishbowl.com founder and entrepren...

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Shortlist

Marco Cremona

Sustainable Water Recy...

Rating:

Currently 3/5 Stars.

Craig White

Photosynthetic Archite...

Rating:

Currently 2.5/5 Stars.

Mario Rosato

AFADS: A low-cost trea...

Rating:

Currently 2.5/5 Stars.

Mark Mullen

Free commuter bikes, L...

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Currently 2.5/5 Stars.

Sameer Hajee

Clean lighting for imm...

Rating:

Currently 2.5/5 Stars.

Anne-Kathrin Kuhl...

Social Stock Exchanges...

Rating:

Currently 2.5/5 Stars.

Gilles Gallo

SOLAR-COOKER-BY-ID-COOK

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Currently 2.5/5 Stars.

Kresse Wesling

The Elvis & Kresse Org...

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Currently 2.5/5 Stars.

John Armstrong

A new idea for recover...

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Currently 2.5/5 Stars.

Mathew Holloway

Artica – Eco Friendly...

Rating:

Currently 2.5/5 Stars.

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Most popular entries

Marco Cremona

Sustainable Water Recy...

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Currently 3/5 Stars.

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