Researchers in the United States have designed a carbon-negative, enzyme-based building material that could one day replace conventional concrete—one of the world’s largest contributors to carbon emissions. The breakthrough marks a significant step toward greener construction practices at a time when the built environment is under pressure to decarbonise.
The new material uses enzymes to trigger mineralisation, allowing it to harden and gain strength while actively absorbing carbon dioxide from the atmosphere. Unlike traditional cement production—which emits large volumes of CO₂ during manufacturing—the enzyme-based process captures more carbon than it releases, resulting in a net-negative carbon footprint.
Scientists say the material mimics natural processes found in shells and coral formation, enabling strong structural properties without the energy-intensive heating required for cement. Early tests indicate promising durability and load-bearing capacity, making it suitable for applications such as bricks, panels, and non-load-critical structural components.
Experts believe this innovation could transform the construction industry if scaled successfully. With global demand for concrete continuing to rise, replacing even a portion of traditional cement-based materials with carbon-negative alternatives could significantly reduce emissions.
While further testing, cost optimisation, and regulatory approvals are still needed, the development highlights how biotechnology and materials science are converging to create climate-positive solutions for the future of construction.
