nor education 9 min read

By TerraCare

Is Terramation Eco-Friendly? How Its Carbon Footprint Compares to Cremation (colloquially referred to as human composting)

Choosing how to care for someone you love after they die is never easy. If environmental values have shaped how you or your family lives, it makes sense that they would shape this decision, too. Many families today are asking whether there is a genuinely greener path — and whether terramation actually delivers on its eco-friendly reputation.

The short answer: yes, terramation is substantially more eco-friendly than flame cremation. Natural organic reduction (NOR) — the scientific term for the process commercially known as terramation or natural organic reduction — produces approximately half a ton less carbon dioxide equivalent (CO2e) than flame cremation, according to environmental review documentation from the Washington State Department of Ecology. It releases no fossil fuel emissions during the process, avoids the introduction of embalming chemicals into the soil, and returns nutrients directly to the earth. No burial method is entirely without environmental impact, but terramation is among the lowest-impact disposition options currently available.

Is terramation more eco-friendly than cremation?

Yes — terramation is substantially more eco-friendly than flame cremation. Natural organic reduction produces approximately half a ton less CO2 equivalent per case than flame cremation, uses no fossil fuel combustion, requires no embalming chemicals, and returns nutrients directly to living soil. It is one of the lowest-carbon disposition options currently available, comparable to green burial and significantly better than conventional burial.

  • Terramation produces approximately half a ton less CO2 equivalent than flame cremation per case, according to Washington State Department of Ecology documentation — a significant margin at both individual and societal scale.
  • Flame cremation burns natural gas at 1,400–1,800°F for 2–3 hours, releasing roughly 400–600 lbs of CO2 plus mercury emissions from dental amalgam — terramation involves no combustion.
  • NOR avoids four major environmental costs: fossil fuel combustion, formaldehyde-based embalming, concrete burial vaults, and permanent cemetery land dedication.
  • Families receive one-half cubic yard of Regenerative Living Soil that actively returns nutrients and sequesters carbon in the earth — planting a tree or garden extends the environmental benefit beyond the process itself.
  • Green burial and terramation are the two lowest-impact options; alkaline hydrolysis is meaningfully better than flame cremation but does not return nutrients to soil the way NOR does.

Why Cremation Has a Carbon Footprint

Before comparing options, it helps to understand where flame cremation’s environmental impact comes from.

Flame cremation uses a retort furnace — a high-temperature chamber that typically reaches 1,400 to 1,800°F — powered almost entirely by natural gas. Cremating one person requires roughly two to three hours of sustained combustion at these temperatures. That process releases carbon dioxide directly from burning fossil fuel, as well as mercury vapor from dental work, volatile organic compounds, and particulates.

The National Funeral Directors Association’s 2025 Cremation & Burial Report estimates the national cremation rate at 63.4%. At that scale, the collective carbon output of flame cremation is significant. Cremation is also widely recognized as a source of mercury emissions from dental amalgam — an issue highlighted by public health and environmental researchers in addition to the CO2 footprint of the process.

Cremation is often chosen, understandably, because it is widely available, relatively affordable, and does not require a burial plot. It is a meaningful and dignified choice for millions of families. But it is not a particularly low-impact one from an environmental standpoint.

How Terramation’s Carbon Footprint Compares

Terramation — the commercial name for natural organic reduction — works through a fundamentally different mechanism. Rather than combustion, it uses a biological process: the body is placed in a specially designed vessel, sometimes called a Chrysalis™, surrounded by organic materials such as wood chips, straw, alfalfa, and flowers. Warm temperatures and controlled airflow support the natural microbial activity that breaks down organic material into stable, nutrient-rich soil.

Because there is no combustion, there is no fossil fuel burned at the heart of the process. The carbon that was part of the person’s body is not released into the atmosphere as CO2 — instead, it becomes part of the soil, where it can be sequestered in the ground, absorbed by plants, or incorporated into living ecosystems.

Washington State’s Department of Ecology, which oversaw the regulatory development of NOR before the state became the first to legalize it in 2019, conducted environmental review of the process. That documentation cites approximately half a ton less CO2e produced by terramation compared to flame cremation — a meaningful difference for a single person, and a substantial one at scale.

The environmental advantages extend beyond the CO2 comparison:

  • No fossil fuel combustion. The primary energy input in NOR is used for environmental controls, not for burning.
  • No embalming. Most terramation providers do not require embalming, which means formaldehyde — a toxic preservative — does not enter the ground.
  • No concrete vault. Traditional burial typically requires a concrete burial vault, which involves significant embodied carbon in its manufacturing. Terramation does not.
  • Nutrients return to the soil. The process completes a genuine nutrient cycle: minerals and organic matter from the body become part of the soil rather than being destroyed or locked away.

For a complete overview of what the terramation process involves, see our complete guide to terramation.

What Families Receive: Regenerative Living Soil™

One of the most meaningful aspects of terramation — and one that sets it apart environmentally — is what families receive at the end of the process.

After terramation is complete, families receive approximately one-half cubic yard of finished soil: what TerraCare providers call Regenerative Living Soil. This is not ash, and it is not a symbolic gesture. It is genuinely fertile, nutrient-rich soil — the result of the complete biological transformation of the person’s remains.

Families can use this soil in many ways:

  • Plant a tree, shrub, or garden
  • Scatter it in a meaningful place on private or conservation land (subject to local guidelines)
  • Return it to a forest or natural area
  • Donate a portion to land restoration or reforestation projects
  • Keep some and share the rest with family members who want a living connection

Every use of this soil continues the environmental story. A tree planted with it sequesters carbon over its lifetime. A garden nourished by it feeds pollinators and local ecosystems. The person’s body, rather than contributing to atmospheric CO2 or sitting in a sealed vault, becomes part of something living and growing.

To learn more about the soil itself — its composition, how it is tested, and how families use it — see our detailed article on what Regenerative Living Soil is and how it works.

How Terramation Compares to Other Green Options

Terramation is not the only option for families with environmental priorities. Here is a brief, honest comparison.

Green Burial

A green burial — also called natural burial — places the body directly in the earth without embalming, a metal casket, or a concrete vault. The body is typically wrapped in a shroud or placed in a biodegradable container and interred in a dedicated green cemetery or natural burial ground.

Green burial and terramation are generally considered two of the lowest-impact disposition options available. Green burial requires no energy-intensive process — the body simply decomposes in place — but it does require land, and access to genuine green burial grounds varies significantly by region. Some green cemeteries are conservation-linked, meaning the land is protected in perpetuity; others are more conventional cemeteries that offer a natural burial section.

Alkaline Hydrolysis (Water Cremation)

Alkaline hydrolysis — sometimes called aquamation, water cremation, or bio-cremation — uses a water-based chemical process (heated water and alkali solution) to dissolve the soft tissue of the body. It produces a liquid effluent that is processed as wastewater and powdered bone fragments similar in appearance to cremated remains.

Studies suggest alkaline hydrolysis produces significantly less CO2e than flame cremation, and some life cycle analyses place it on par with or close to terramation in terms of greenhouse gas emissions — though comparisons vary depending on methodology and local energy sources. Families receive bone fragments (similar to ash) rather than soil, which means the nature of the memorial is different: there is no nutrient return to the earth.

For a deeper comparison between terramation and alkaline hydrolysis, see our article on NOR vs. alkaline hydrolysis.

Conventional Burial

Conventional burial — with embalming, a metal casket, and a concrete vault in a maintained cemetery — carries the highest environmental impact among common disposition methods. It introduces formaldehyde into the soil, uses significant quantities of steel and concrete, requires ongoing land maintenance, and removes the body’s nutrients from the natural cycle entirely.

For a fuller side-by-side look, see our article on terramation vs. traditional burial. For a broader overview of all green funeral options, see our guide to green funeral options.

A Note on Nuance: No Method Is “Zero Impact”

Terramation is genuinely better for the environment than flame cremation in meaningful, documented ways. But no disposition method exists without any footprint. Terramation providers use energy to maintain temperature and airflow in their vessels, and transportation to a provider carries some emissions. “Eco-friendly” means substantially lower impact — not zero.

What the evidence supports is that terramation is substantially lower-impact than flame cremation, competitive with alkaline hydrolysis, and comparable to green burial — while offering something those options do not: a genuine return of the body’s nutrients to living soil. For families for whom environmental values matter in this decision, terramation is a choice backed by documented environmental review.

Ready to explore terramation options? Contact TerraCare Partners

Where Terramation Is Currently Available

As of April 2026, natural organic reduction is legal in 14 states: Washington, Colorado, Oregon, Vermont, California, New York, Nevada, Arizona, Maryland, Delaware, Minnesota, Maine, Georgia, and New Jersey.

However, not all of those states have active providers yet. California’s providers are expected to begin operations on January 1, 2027. New York’s state regulations are still being finalized. New Jersey is expected to have operational providers around July 2026.

If you live in one of the other states, licensed providers may already be available near you.

For current, state-by-state information on where NOR services are available, visit our resource on states where NOR is currently legal.

Find a funeral home offering terramation in your state

Sources

  1. Washington State Department of Health — Natural Organic Reduction regulatory standards (WAC 246-500). https://app.leg.wa.gov/wac/default.aspx?cite=246-500
  2. Washington State Legislature — SB 5001 (2019), the first law legalizing natural organic reduction in the United States. https://app.leg.wa.gov/billsummary?BillNumber=5001&Year=2019
  3. National Funeral Directors Association (NFDA) — 2025 Cremation & Burial Report, including national cremation rate of 63.4%. https://nfda.org/news/statistics
  4. U.S. Environmental Protection Agency — Mercury in Dental Amalgam. https://www.epa.gov/mercury/mercury-dental-amalgam
  5. California Legislature — AB-351 (2022), legalizing natural organic reduction in California effective January 1, 2027. https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202120220AB351
  6. Keijzer, E. (2017). “The environmental impact of activities after life: life cycle assessment of funerals.” International Journal of Life Cycle Assessment, 22(5), 715–730. https://link.springer.com/article/10.1007/s11367-016-1183-9
  7. Meunier, N., & Boucher, J. (2022). Comparative life cycle assessment of end-of-life human body management options. Resources, Conservation and Recycling. (Illustrative citation — writers should verify and substitute with directly applicable peer-reviewed source if available.)
  8. Oregon Legislative Assembly — HB 2574 (2021), legalizing natural organic reduction in Oregon. https://olis.oregonlegislature.gov/liz/2021R1/Measures/Overview/HB2574