Aquamation, also known as, ‘alkaline hydrolysis’ or ‘water ‘cremation’, uses a mixture of water, heat and an alkaline solution within a pressurized chamber to break down body tissue and accelerate decomposition. Seen as an eco-friendly alternative to traditional cremation, with advocates claiming it uses less energy and produces less emissions, it recently gained notoriety as the cremation method used during the cremation of the Archbishop Desmond Tutu.