Summary:
If you’re asking this question, you’re probably trying to make a decision that aligns with your values — or the values of someone you’ve lost. That’s a good instinct, and it deserves a straight answer, not a sales pitch.
The short version: cremation is more eco-friendly than traditional burial in some ways, but it’s not a clean option by any measure. And for most families, the real environmental impact doesn’t end at the cremation itself — it depends on what happens to the ashes next. Here’s what the research actually shows, and what it means for Nassau County families who want to make a thoughtful choice.
What Is the Real Environmental Impact of Cremation?
Standard flame cremation produces approximately 400 to 600 pounds of CO₂ per service and burns around 28 gallons of fuel — roughly equivalent to a 500-mile car trip in energy and emissions. That figure comes from Matthews Environmental Solutions, one of the leading manufacturers of cremation equipment, so it’s not an environmental advocacy estimate. It’s industry data.
Compare that to traditional burial, which collectively consumes about 4.3 million gallons of embalming fluid, 20 million feet of wood, 1.6 million tons of concrete, and 64,500 tons of steel annually across the United States. On that scale, cremation does look like the better option. But “better than the worst choice” isn’t the same as environmentally friendly — and that distinction matters if you’re genuinely trying to minimize your impact.
Why Do So Many People Assume Cremation Is the Green Choice?
The assumption makes sense on the surface. There’s no land use, no casket, no vault, no embalming chemicals seeping into the soil. Cremation feels minimal — and in some ways, it is.
But the process itself requires a furnace burning at temperatures between 1,400 and 1,800 degrees Fahrenheit for one to three hours. That’s a significant amount of energy, and it comes almost entirely from fossil fuels in most crematories.
There’s also the question of mercury. Dental fillings release mercury vapor during cremation, and while the EPA has studied crematory emissions and found levels within acceptable ranges, it’s a real byproduct that doesn’t disappear. Nitrogen oxides, sulfur dioxide, carbon monoxide, and fine particulates are also released — modern equipment reduces these, but doesn’t eliminate them.
None of this means cremation is the wrong choice. For many families, it’s the right one for reasons that go well beyond environmental impact — cost, simplicity, religious or cultural preference, or the wish to keep or scatter a loved one’s remains. The point is simply that “eco-friendly cremation” is a partial truth. It’s greener than some options and not as green as others.
Knowing where it actually falls on the spectrum helps you make a more informed decision about what comes next. And that “what comes next” question is where most eco-focused cremation content stops — and exactly where the conversation gets more interesting.
Are Cremation Ashes Harmful to the Environment?
This is one of the most common questions families have, and the answer is reassuring. Cremation ashes are composed primarily of calcium phosphate — the same mineral that makes up human bone. They’re not toxic, and they don’t contain the chemical residues that embalming introduces into the soil.
That said, ashes are alkaline, and scattering a large quantity in a concentrated area — like a small garden or a freshwater stream — can temporarily affect the soil or water chemistry. In an open ocean environment, that effect is negligible. The sheer volume of seawater disperses and neutralizes the alkalinity quickly, and the calcium phosphate itself becomes part of the marine ecosystem over time.
What does matter environmentally is what you put the ashes in and how you handle the materials around the ceremony. Plastic urns, synthetic flowers, and non-biodegradable decorations don’t belong in the ocean — and under EPA regulations, they’re not permitted there. When ash scattering is done correctly, with biodegradable materials only, at least three nautical miles from shore, it meets the federal standard for a legal and environmentally responsible burial at sea.
For Nassau County families who grew up near the water — whether that’s Freeport, Long Beach, Atlantic Beach, or Point Lookout — this isn’t an abstract concept. The Atlantic Ocean you can see from the south shore is the same water where a sea burial takes place. The ashes don’t go to some distant, unfamiliar place. They return to something local and known, which carries its own kind of meaning alongside the environmental benefit.
Water Cremation Ashes and the Greener Alternatives Worth Knowing About
If standard cremation’s carbon footprint gives you pause, there is a greener process called aquamation — also known as water cremation or alkaline hydrolysis. Instead of fire, it uses a heated water and alkali solution to break down the body over several hours. The result is the same: bone fragments that are processed into fine powder, similar in appearance to flame cremation ashes.
The environmental difference is significant. Aquamation uses approximately one-tenth the energy of flame cremation and produces roughly one-tenth the carbon emissions. When powered by clean energy, the process has virtually no airborne emissions. The water cremation ashes it produces can be scattered, buried, or kept exactly like standard cremation ashes — including at sea.
Is Water Cremation (Aquamation) Available in New York State?
This is a practical question for Nassau County families, and the honest answer is that New York State has been slow to adopt aquamation for human remains. As of now, it is not widely available through licensed providers in New York — which means that for most Long Island families, flame cremation remains the primary cremation option, regardless of environmental preferences.
That’s worth knowing because it changes the calculus. If aquamation isn’t accessible to you locally, the most meaningful environmental step you can take isn’t in how the cremation happens — it’s in what you do with the ashes afterward. Choosing a sea burial rather than storing cremation ashes in a synthetic urn indefinitely, or placing them in a columbarium niche, is a concrete way to close the loop on an eco-conscious goodbye.
It’s also worth noting that aquamation and sea burial aren’t competing options — they’re complementary. If aquamation does become available to New York families in the future, the ashes it produces can still be scattered at sea. The two approaches work together. But for families making decisions right now in Nassau County, sea scattering is the most accessible way to ensure that the final disposition of cremated remains is genuinely aligned with a green burial philosophy.
The other common alternatives — green burial in certified natural burial grounds, human composting, and reef ball memorials — are worth researching, but each comes with geographic or logistical constraints that make them harder to access from Long Island. Sea burial, by contrast, is available year-round, close to home, and fully regulated under federal law.
Alternative Cremation and Funeral Services Available to Nassau County Families
At Eternal Peace Sea Burials, we operate out of Freeport, NY — right on the south shore of Nassau County — and we specialize in ash scattering ceremonies at sea aboard the Seaspray, our Coast Guard-inspected 51-foot deck boat. We sail a minimum of three nautical miles offshore, past Point Lookout and into the open Atlantic, in full compliance with EPA regulations under the Marine Protection, Research, and Sanctuaries Act.
Every service we conduct uses biodegradable materials only. No plastic, no synthetic decorations, nothing that doesn’t belong in the water. After the ceremony, we file the required EPA report and provide families with a certificate documenting the exact GPS coordinates of the scattering location — a permanent, locatable record of where their loved one was laid to rest.
We offer attended services where family and friends join us aboard the Seaspray for the ceremony, and unattended services where our captain performs the scattering on your behalf and documents it for you. We also conduct pet sea burials, and we can accommodate religious rites — including having a priest present if that’s important to your family. Pets are welcome aboard during the journey. Catering is available for families who want to gather, share a meal, and mark the day in a more personal way.
The Seaspray sits low in the water, which means you’re not leaning over a tall rail when the moment comes — you’re close to the surface, close to the ocean, in a way that feels immediate and real. And because we have a heated cabin, we operate year-round. Grief doesn’t follow a seasonal schedule, and neither do we.
For Nassau County families who want a farewell that’s genuinely eco-conscious, deeply personal, and legally sound, a sea burial is worth a serious look. Our Burial Coordinator, Maria Brusalis, can walk you through the options and answer any questions you have about the process. You can reach us at 631-668-5800.
What's the Most Environmentally Friendly Burial Option for Long Island Families?
Cremation is a reasonable choice — better than a traditional burial in several meaningful ways, but not without its own environmental costs. If you’re trying to minimize impact, the cremation itself is only part of the picture. What you do with the ashes is the other half.
For families on Long Island, scattering cremated remains at sea is the most accessible, legally compliant, and environmentally sound option currently available. It requires no land, no infrastructure, no synthetic materials, and no ongoing maintenance. The ocean does the rest.
If you’re thinking through these decisions for yourself or someone you love, Eternal Peace Sea Burials is here to help you understand your options — without pressure and without rushing you. Reach out when you’re ready.