PARIS It was used to build the Great Wall of China and Spain’s mediaeval Alhambra Palace and now earth is back in vogue as a building material.Climate change has spurred renewed interest in the ancient technique which sees polluting concrete swapped where possible for earth. For centuries, mud and clay were an abundantly available way to put a roof over one’s head, but
It was used to build the Great Wall of China and Spain's mediaeval Alhambra Palace and now earth is back in vogue as a building material. Climate change has spurred renewed interest in the ancient technique which sees polluting concrete swapped where possible for earth. For centuries, mud and…