You can be decomposed in water instead of being buried or cremated
As climate concerns reshape nearly every industry, even the funeral industry is coming under scrutiny. The traditional choices—flame cremation and burial—both carry heavy environmental costs. Burial consumes scarce land and introduces toxic embalming chemicals into the ground, while cremation relies on fossil fuels and emits large volumes of carbon dioxide. In a world where industries are being asked to decarbonize, a third option is emerging: alkaline hydrolysis, more commonly known as aquamation or “water cremation.” Advocates say it offers families a gentler, more sustainable exit from the world.
The science behind aquamation is simple, even if the idea feels new. In essence, it accelerates the natural process of decomposition using water, heat, and alkalinity. A body is placed in a sealed stainless-steel vessel, where it is immersed in a mixture of water and potassium hydroxide or lye. The chamber is gently heated to a temperature between 200 and 350 degrees Fahrenheit, far cooler than the flames of cremation. Over the course of six to twenty hours, the solution breaks down soft tissue, leaving behind only bone minerals.
At the end of the process, two products remain. The first is a sterile liquid composed mostly of water, along with small amounts of amino acids and sugars, which can be safely returned to the water system. The second is the mineralized bone, which is dried, processed into a fine powder, and given back to the family in an urn, much like traditional cremated remains. Supporters describe the procedure as a clean and dignified alternative that aligns with both environmental goals and family needs.
The environmental benefits are striking. Flame cremation consumes large amounts of natural gas, generating about 540 pounds of carbon dioxide per body. Aquamation, by contrast, uses up to 90 percent less energy and produces zero direct greenhouse gases. It also avoids releasing mercury and other toxic metals into the atmosphere, a byproduct of burning dental fillings during cremation. In addition, aquamation eliminates the need for embalming fluids, which are typically formaldehyde-based. Every year, millions of gallons of these toxic chemicals are buried underground along with bodies, eventually leaching into soil and groundwater. By removing embalming from the equation, water cremation offers a cleaner alternative for both people and the planet.
Public health considerations also strengthen the case. The process sterilizes everything it touches, neutralizing pathogens and making it safe for remains that may have carried infectious disease. This feature has led some medical institutions to adopt aquamation for research bodies, long before it was offered in funeral homes.
From a land-use perspective, aquamation addresses another mounting pressure: the shrinking availability of burial space. Urban cemeteries are running out of plots, while rural areas are increasingly under stress from development and land conservation needs. Like flame cremation, aquamation offers a space-saving solution, but with far fewer environmental costs.
Yet despite its promise, aquamation faces legal and cultural hurdles. Although it is gaining popularity, the process remains illegal or tightly regulated in many regions. The funeral industry, bound by tradition and regulation, has been slow to adapt to changes. In some states and countries, lawmakers have hesitated to authorize water cremation, citing discomfort with the idea or uncertainty about how to regulate the sterile effluent it produces. Opponents sometimes frame it as disrespectful or unsettling, while supporters argue that it is no different in principle from flame cremation, just less damaging.
Public perception is another barrier. The term “dissolving a body” understandably carries an emotional weight that can trigger discomfort. Funeral directors often use the phrase “gentle water cremation” when explaining the process to families, emphasizing its dignity and environmental value. Many who choose aquamation describe it as emotionally easier, a process that feels softer and more natural than fire. With the rise in consumer demand for “green funerals,” industry experts believe acceptance will continue to grow.
For families navigating end-of-life choices, aquamation offers a way to honour loved ones while leaving a smaller mark on the planet. It represents a necessary evolution, balancing tradition with the realities of modern environmental ethics. As policymakers tighten carbon targets and sustainability becomes central to daily life, pressure will only increase on industries once thought exempt from climate considerations. Death, it seems, is no exception.
Aquamation gives families a third choice—one that conserves land, prevents pollution, and avoids greenhouse gas emissions. It is not only a technical alternative but also a symbolic one, signaling a shift toward practices that respect both the dead and the living world they leave behind. For those who want their final act to reflect care for the environment, water cremation may become not just a novel option but the new standard for a sustainable farewell.
