Zeroing In: Carbon Neutral 2050 S01 E13 Concrete for the Future

City dwellers often refer to life in the "concrete jungle," but most probably aren't aware of the fact that cement accounts for 8% of global emissions. Innovative efforts are underway to decarbonize the industry, so that the infrastructure and architecture we rely on can help to provide a greener future. In partnership with a US public broadcaster, we zero in on some of the researchers who are pushing the boundaries by turning alternative materials into actual building blocks.