Concrete is the most important building material in the world and a huge source of CO₂. A Berlin start-up now wants to make it more climate-friendly. But that costs money – and prices are a sensitive issue in construction.
Concrete is the most important building material in the world and a huge source of CO₂. A Berlin start-up now wants to make it more climate-friendly. But that costs money – and prices are a sensitive issue in construction.