In this Wednesday, Aug. 11, 2021, photo, Seth Viddal, who co-owns The Natural Funeral, stands behind a nearly completed human body composting vessel in Arvada, Colo. On Sept. 7, Colorado became the second state after Washington to allow human body composting, and Oregon will allow the practice beginning next July. The vessel will be packed with wood chips and straw and will be able to compost a body in six months. About the size of a standard grave, the rectangular insulated wooden box is lined with waterproof roofing material and packed with wood chips and straw. Two large spool wheels on either end allow it to be rolled across the floor, providing the oxygenation, agitation and absorption required for a body to compost. (AP Photo/Thomas Peipert)