We build to meet human needs for living, working, learning, and gathering, but the materials we use for construction sometimes harm the planet.

Concrete is the world's most commonly used building material, however, its production is energy-intensive, uses non-renewable fossil fuels, and requires large amounts of water. Additionally, mining for the raw materials needed to create concrete causes land degradation, deforestation, and biodiversity loss.

To find a better way to manufacture building materials, Biomason studied coral to learn how it creates hard, durable structures. Then, they mimicked the process, using microorganisms to grow cement at ambient temperatures.

In their method, they combined bacteria, small stone fragments, and nutrient-rich water. As the bacteria grows, it forms calcium carbonate crystals, binding the stone pieces together to create masonry strong enough to use in homes or commercial buildings in just 72 hours, without the need for curing or firing.