Gnanli Landrou invented a special powder that can turn earth and water into a strong building material. He draws inspiration from the homes where he grew up in West Africa.
It has a much lower carbon footprint than concrete – and it’s about to be used in a new building.
For more, check out the People Fixing the World podcast.
Produced by Richard Kenny and Jo Mathys. Filmed by Angus MacKenzie. Journalist: Myra Anubi