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Partner: Beton und Naturstein Babelsberg GmbH

‍Date: Summer 2025

‍Location: Potsdam, Germany

‍Concrete Application: Precast concrete element

‍Amount of eLM Zero used: 1 tonne

‍Carbon Sink: 2.4 tonnes of CO₂ durably stored

‍CO₂ Footprint: Reduced by 100%

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The POTSDAM city sign, produced by Beton und Naturstein Babelsberg (BNB) with ecoLocked Materials®, was unveiled in the summer of 2025 as a new landmark of the state capital in front of the Film Museum. This installation, standing roughly two metres tall, marks the world’s first city name sculpture crafted from CO₂-neutral concrete, transforming urban design into climate action.

Unlike conventional concrete, the material used here permanently stores carbon, locking away 2.4 tonnes of CO₂ — equivalent to the carbon captured by 40 trees over 10 years or the CO₂ emissions from driving a fossil-fuelled car for 6,000 km.

Made possible through the collaboration of the Landeshauptstadt Potsdam, Oberlinhaus, and other local partners, the project demonstrates how public art can serve a dual purpose as both a cultural landmark and a tangible contribution to climate action.

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