Make a sustainable, yurt-style shelter, by hand, with materials your can find and harvest yourself. Come June, Kiko Denzer will lead a week-long intensive natural building project to perfect a design for a simple, affordable, efficient and beautiful yurt made of sticks, string, and mud (6/9-15, Aprovecho Inst., Cottage Grove, OR; information and registration here. For design description and photos, click here.) If you're interested in a full year learning opportunity in natural building, home heat (ovens, rocket-stoves, and masonry heaters), traditional green woodwork, basic blacksmithing, . . .