Cement production accounts for roughly 8 percent of global CO2 emissions. New research into seawater electrolysis offers a way to create sustainable building materials by precipitating calcium carbonate and magnesium hydroxide, which can replace traditional carbon-intensive limestone mining. When powered by renewable energy, this process can act as a permanent carbon sink, sequestering CO2 within the concrete structure. This method aims to replicate the durability of ancient Roman concrete while transforming the construction industry into a carbon-negative sector.
