Ideas for the climate: This wall is designed to bind CO₂ in three ways.

Stone, carbon fibers and biochar are the components of a new type of wall that stores CO₂ and could therefore help to decarbonize the construction sector. But approving it as a building material takes time and money. It is therefore likely to be some time before the material can be used on a large scale.

Last updated: 24. July 2025