A person’s carbon footprint keeps growing after death. Burial uses arable land, and cremation releases a body’s carbon into the atmosphere. The Cryomator instead chills the body with liquid nitrogen until it breaks apart and then freeze-dries the remains to remove water and kill microbes. The powder retains the body’s carbon, making the entire carbon impact of the process about 75 percent less than that of cremation. The company is currently building its first commercial unit, which should be in operation before the end of 2012.