“CRATerre is the international centre for building with earth at the Faculty of Architecture at the University of Grenoble, France.
Raw earth, used for eleven millennia, remains today the building material most prevalent worldwide. One third of humanity lives in a habitat made with earth, more than two billion people in 150 countries. Earthen architecture, simple and monumental, is present in various contexts and meets diverse needs.”
Much more at the source (in French): CRATerre craterre.org/