The generation of greenhouse gas in concrete production is a major problem. Changes are needed today—and researchers and engineers are pursuing many possibilities

Hempcrete is a bio-composite material that can serve as an alternative to traditional lime, reducing the carbon impact of the resulting concrete mixture while improving its insulator-like and energy-retaining properties

Without the need for long-distance transportation or carbon-intensive production techniques, one research lab is experimenting with local soils that may offer a greener path forward