Swedish ecologist Susanne Wiigh-Masak has developed Promessa, a method for recycling human corpses into fertilizer.While cremation burns fossil fuels and releases pollutants, burials require that the corpse be filled with embalming fluids which can pollute the groundwater as the body decays.
Wiigh-Masak's solution has bodies immersed in liquid nitrogen to remove water, causing them to crumble into fine organic dust. This is then placed in a container that biodegrades within six months. - [source]