Kelly Hart has created a great slide show that displays earthbag construction and finished projects. He has also published a new web resource at earthbagbuilding.com. I’m a fan of earthbags. Benefits of earthbag construction include less water consumption, flexible earthen material ratio, courses and go up in moments ( no waiting for cob to dry). Bags can be plastered with earth or papercrete as Kelly has done. This type of construction is a form of rammed earth. The bags create a modular flexible form that stays in the wall. The polypropylene bags deteriorate in the sun, so covering them is very important. If you went to the moon, bring polypropylene bags and a shovel and you can build a shelter there… I suppose they would be called moonbags then.