Natural Building and bioclimatic architecture saving natural resources and energy Cob.gr deals with natural building and bioclimatic architecture, two practices that result in saving natural resources and energy. It also deals with matters concerning energy, food, cultivation and generally with anything that can make our footprint more light and fair for planet earth. Cob is hosting people from all over the world who are interested in natural building, permaculture and alternative way of living while helping around the unique experimental farm together with an intercultural group