Concrete is the most widely used building material on the planet; however, the production of some of its component materials accounts for up to 5 percent of global carbon dioxide emissions annually. To address the sustainability and environmental implications of the use of concrete as the backbone of our housing, schools, hospitals and other built infrastructure, including highways, tunnels, airports and rail systems, MIT today announced the creation of the Concrete Sustainability Hub, a research center established at MIT in collaboration with the Portland Cement Association (PCA) and Ready Mixed Concrete (RMC) Research & Education Foundation. Read more.