Urine-diverting dry toilet and fertilized plants. This toilet has a treadmill inside (visible at left) that separates faeces from the urine. The excreted material is treated in the absence of a water supply or waste disposal facilities. These types of toilets (also used in developing countries where water resources are scarce) are known as urine-diverting dry toilets. The resulting fertiliser can be used to grow plants (right). Photographed inn 2019.