Will Concrete Be a Climate Saver From Climate Killers? Visionaries Tinker with Tomorrow's Building Material

Neue Zürcher Zeitung

Lean Right

Factuality

Ownership

He is the most used building material and responsible for eight percent of the global CO2 emissions. Now concrete is to be made climate-neutral. A challenge. "NZZ Format" has met researchers and entrepreneurs who do pioneering work.

Trends der Zukunft

Factuality

Ownership

From carbon dioxide (CO2) and metals such as iron and manganese, researchers at the University of Michigan produce metal oxalates that are suitable as a substitute for cement. Oxalates are salts that contain metal, carbon and oxygen atoms. Iron oxalate, for example, has the chemical formula Fe2C2O4. The CO2 researchers want to extract from the smoke of fossil power plants, industrial exhaust gases or directly from the air. The climate gas become…