In a milestone achievement for circular urban manufacturing, a clean-tech biomaterials lab operating within the Brooklyn Navy Yard has unveiled Prometheus Bio-Stone: a load-bearing, zero-carbon building material grown entirely from cultured marine microalgae and seawater.
Eliminating the Carbon Footprint of Traditional Cement
Traditional Portland cement production requires baking limestone at 2,700ยฐF in massive fossil-fueled kilns. The Brooklyn-developed process mimics coral reefs, utilizing photosynthesis to precipitate calcium carbonate at ambient room temperature, sequestering carbon directly into structural blocks.
City Infrastructure Testing in Long Island City
Through a pilot with the NYC Department of Transportation, the bio-concrete paver stones are being installed along a 10-block public promenade in Queens. Structural testing confirms the material meets standard compressive strength requirements while eliminating emissions.
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