Carbon dioxide is a major component of the greenhouse gases that trap heat in Earth’s atmosphere. Many scientists search for ways to reduce CO₂ emissions. But Gaurav Sant, UCLA associate professor of civil and environmental engineering, is making industrial pollution part of the solution. Sant and an interdisciplinary team of collaborators have invented a sustainable concrete for use as a building material. Thus far, the cement-like material has only been produced at laboratory scale, using 3-D printers to shape it into tiny cones. Now the UCLA inventors are tackling the challenges of industrial scale. “We’re not just trying to develop a building material,” Sant says. “We’re trying to develop a process solution, an integrated technology which goes right from CO₂ to a finished product.”