It's time for the construction industry to bring back cob, but innovation is needed to solidify the age-old material's place back within our toolkits, design collective Cella tell Dezeen in this ...

Teach yourself how to build a plastic bottle house with cob and transform trash into a home. I build houses out of trash. I was inspired by the life of Kenyan Nobel laureate Wangarĩ Maathai, who said, ...