LC3: A Globally Scalable Solution for Low Carbon Concrete
November 13, 2025 11am-12pm PT
Concrete is responsible for 8% of global CO2 emissions, not because it is particularly high emitting, but because we use more of it than any other material on earth. Any solution must be affordable and must be able to scale globally in all regions, in particular in low income countries where most cement will be consumed. This presentation will give an overview of how cement is made, some of the key decarbonization strategies, and take a deep dive on why LC3 (Limestone Calcined Clay Cement) is a promising solution. It will also describe what the ClimateWorks Foundation and Global Industry Hub are doing to make this change happen.
Scott Shell is a Strategist with the ClimateWorks Foundation and the Global Industry Hub working to decarbonize heavy industry around the world including cement, concrete, and steel. Scott is a Fellow in the American Institute of Architects and spent most of his career as a partner at EHDD Architecture in San Francisco. He led the design of many university research buildings and independent schools, including a number of the first net-zero energy buildings in collaboration with a talented team of architects and engineers.
Presentation Materials
