大象传媒

Robert J Klink spent his life near water.

When he was growing up in the 1950s, his parents had a cabin on South Long Lake, in Minnesota, the land of 10,000 lakes. He learned to fish and hunt near the water鈥檚 edge.

It became a lifelong passion, and for many years he and his second wife Judi Olmsted kept a couple of cabin cruisers on the Saint Croix River. Bob would fish and shoot ducks, which he prepared and ate by himself.

Shortly before Bob鈥檚 death in March from colon and liver cancer, Olmsted approached her local funeral home, Bradshaw Celebration of Life Center in Stillwater.

She told the people there that her husband wanted to be cremated when his time came.

She was surprised to learn that Bradshaw鈥檚 offered two types of cremation: the one that everyone knows about, involving fire, and a new kind, which uses water.

A pamphlet explained that this 鈥済entle, eco-friendly alternative to flame-based cremation鈥� used an alkaline solution made with potassium hydroxide to reduce the body to a skeleton.

鈥淎t first, I was thinking, 鈥榃ell, I don鈥檛 know about that,鈥欌�� Olmsted says.

When we are buried, we ask our planet for resources a final time - wood for a coffin, cotton for the lining, stone for a monument.

In the US, graves are usually either lined with concrete or the coffin is placed in a metal or concrete vault which will not decompose.

But cremation has an environmental cost too. To burn a single body, a cremator machine generates enough heat to warm a home in winter for a week, even in freezing Minnesota.

Bradshaw鈥檚 are one of just 14 funeral homes in the world to offer this 鈥済reen鈥� option. Alkaline hydrolysis is said to be much more environmentally friendly than conventional cremation.

They offer both services at the same price and say the new kind of cremation has proved an unexpected hit.

Of their customers who choose not to be buried - about half of the total - 80% opt for alkaline hydrolysis.

But environmental benefits may not be the only factors influencing their decision.

In choosing green cremation Judi Olmsted was mindful of Bob's lifelong love of water and she perceived, in the water-based method, an echo of childhood baptism, which she found touching.

Robert鈥檚 memorial is held on the outskirts of St Paul, Minnesota, in St Andrew鈥檚, the light-filled Lutheran church the couple attended for years.

The urn containing his powdered bones sits on a table next to flowers, photos and a wooden duck.

The service opens with Amazing Grace and closes with How Great Thou Art.

Afterwards, I ask one of Bradshaw鈥檚 funeral directors, Anne Christ, what reasons other people give for choosing alkaline hydrolysis.

鈥淭here are some folks that we deal with that are very scientifically-minded and of course, interested in that environmental piece,鈥� she says.

鈥淏ut really it鈥檚 more about their emotions at that point. I would say most of the people make that decision on a gut feeling about water being gentle.鈥�

Is dissolving a body in chemicals really gentler than burning it?

Do people think about what goes on in alkaline hydrolysis?

鈥淭here鈥檚 a certain amount they don鈥檛 want to know,鈥� she chuckles.

Bradshaw Celebration of Life Center is a long bungalow, surrounded by meadows and groves of slender trees.

Described as 鈥減rairie-style鈥�, the building was designed by a former student of Frank Lloyd Wright.

The alkaline hydrolysis machine is located in the basement. It was installed five years ago at a cost - together with the viewing rooms - of about $750,000 (拢580,000).

鈥淲e could have done it for less,鈥� says Jason Bradshaw, who manages the centre.

鈥淲e just felt being that we were the first in this area - and one of the first in the country - we needed to put in that larger investment.

鈥淏ecause we have tour groups that come through all the time, we have hospices, we have church groups. We have people who just want to see it, because it鈥檚 so new.鈥�

He leads me down to the basement and into a circular room with a tinkling waterfall.

The ochre-coloured wall contains a floor-to-ceiling window looking on to another room, with wooden sliding doors on the other side of the glass.

Jason disappears, switches on the lights in the next room, and pulls open the doors.

And there is the alkaline hydrolysis machine - a rectangular steel box, 6ft high, 4ft wide, and 10ft deep.

It has a huge circular door covering almost its entire width, that wouldn鈥檛 look out of place on a bank vault or submarine.

(In fact, the same doors are used on submarines, although the manufacturer points out a crucial difference - submarine hatches are designed to open from the inside too.)

The industrial appearance of the machine jars with the sombre intensity of the viewing room.

I wonder what sort of person would choose to watch their relative or friend being placed into this machine, which is known as a 鈥渢issue digester鈥�.

I watch Jason and his colleague, David Haroldsen, wheel a corpse through the door.

The body is not identified to me and is completely covered by a black woollen cloth, which Jason and David, wearing blue surgical gloves, delicately tuck into the edges of a steel tray.

Then they open the big door, raise the tray to the level of the black cavity inside the machine, and slide it in.

On the side of the machine is a computer screen with four buttons labelled 鈥渦nlock鈥�, 鈥渢est鈥�, 鈥渃ycle鈥� and 鈥渓ock鈥�.

Jason closes the door, presses the 鈥渓ock鈥� button, and with a pneumatic hiss and a whirr, the door locks shut.

Then he presses the 鈥渃ycle鈥� button. The machine beeps twice, there is another hiss and it begins to fill with water.

Jason, who has a degree in Biology and Chemistry, explains that the machine weighs each body and calculates how much water and potassium hydroxide to add.

He says it鈥檚 roughly 65lb per 600lb of water.

The powerfully alkaline solution, with a pH of about 14, is heated to 152C (306F), but because the digester is pressurised it does not boil.

In a cemetery this may take decades, depending on the conditions and the method of burial.

In the alkaline hydrolysis machine it takes 90 minutes, though the ensuing rinse cycle takes at least as long again.

After three to four hours, the door unlocks and the funeral director sees wet bones scattered across the metal tray, together with any medical implants the dead person had in their body.

Metal hip and knee joints come out in perfect condition.

The manufacturers of the tissue digester have even proposed that, when more machines are in service, they could be collected and donated to the developing world.

By the end, all tissue has dissolved into the solution, which has drained into a separate tank, hidden from view.

鈥淚t resembles either a tea or an ale,鈥� says Jason.

鈥淵ou can actually see through it - and is really made up of salts and sugars. It has a bit of a soapy smell, which is not off-putting, but it is distinct.鈥�

The room in which the machine stands has a smell similar to a dry cleaner鈥檚.

The pH level of the effluent is tested, and if necessary adjusted. Then the liquid is released down the drain.

It is a sterile mix of amino acids and peptides, with no human DNA.

Nevertheless, this disposal of dissolved tissue as a waste by-product, and its progress through the water treatment system, is the part of alkaline hydrolysis that troubles people the most.

Bradshaw鈥檚 dry the bones - either slowly, in a special cabinet - or quickly, in a tray placed inside a domestic tumble drier.

鈥淚t works the best,鈥� says David, with a shrug.

Then they are put through a machine called a cremulator, which pulverises them into a coarse powder.

This is exactly the same machine that is used after a regular cremation, and as with a regular cremation, the word 鈥渁shes鈥� is a misnomer.

The difference is that the resulting powder is finer and whiter, closely resembling flour - and there is about 30% more of it.

So far, the Bradshaw鈥檚 tissue digester has processed about 1,100 bodies, roughly one every day.

It was manufactured in the UK by a company called Resomation Ltd, which plans to install an identical machine in Sandwell, near Birmingham in the British midlands, at the end of this year.

Sometimes families want to help operate the tissue digester, Jason says.

鈥淎nd some people would look at that and say, 鈥榃hy would you ever want to be involved with that?鈥� Other people would say: 鈥楾hat was the last thing I could do for my mum or my dad.鈥�

鈥淚鈥檝e been here when we鈥檝e had three siblings, all standing next to the machine, and together they have all pressed the button to start it.

鈥淎nd I kind of think of it like, if we鈥檙e standing at that cemetery and everybody鈥檚 going to take that first scoop of earth and place it into the grave - it鈥檚 sort of that moment of letting go.鈥�

Around the world, 150,000 people die every day, and the number is rising as the world鈥檚 population increases.

Today there are 7.5 billion of us on Earth, but by the end of the century it鈥檚 thought there will be more than 11 billion.

In some countries, space for graves is running out. In the UK, it is estimated that half of cemeteries will be full in the next 20 years.

In parts of London, the council no longer offers a burial service, and the city has started re-using grave space, lowering bodies further into the ground and placing new ones on top.

The use of land for burial - and the constant upkeep of that land - has an environmental impact. Burial also typically calls for natural resources.

There are other caveats too.

When you look at a person鈥檚 carbon footprint over their lifetime, the disposal of the body accounts for only a tiny fraction - between 10 and 30 thousandths, according to Keijzer.

She has also calculated that the funeral ceremony itself - all the mourners travelling to the service, all the cut flowers and so on - has an impact on the environment roughly three times greater than the impact of the burial or cremation.

But that said, Keijzer's work does suggest that 鈥済reen cremation鈥� may really be greener than the most common alternatives.

In 2001, British news broadcasts were filled with disturbing footage of cows being led to slaughter, piled up and burned.

It was the country鈥檚 worst recorded outbreak of foot and mouth disease - and inconveniently it came before British herds had been fully recovered from an earlier epidemic of mad cow disease (BSE).

It was estimated that up to 2% of the cattle burned were infected with BSE, and burning them in open fields was potentially dangerous.

鈥淚deally you would burn them in an incinerator, which is a controlled environment, but because of the vast quantity of cattle they were burning them in fields,鈥� says the biochemist Sandy Sullivan.

鈥淎nd that actually has the potential of spreading BSE because of particles going up in the atmosphere.鈥�

Sullivan spent five years lobbying the EU to allow a process that would completely sterilise infected carcasses.

The company he worked for, WR2, had patented an alkaline hydrolysis tissue digester, and was already using it to destroy the remains of animals from research laboratories.

In the end, alkaline hydrolysis was not used to dissolve Europe鈥檚 BSE-infected cattle, though it was used in the US to dispose of elk and sheep infected with similar diseases.

The development that led to tissue digesters turning up in funeral parlours came a couple of years later, when Dean Fisher, director of anatomical donations at the world-renowned Mayo Clinic in Minnesota, started exploring the idea of using alkaline hydrolysis to dispose of the clinic鈥檚 cadavers.

He and a colleague got the chance to inspect a machine installed at a hospital in Florida, and were impressed with what they saw.

鈥淲e were like, 鈥極h my God, look at that finished product!鈥欌�� Fisher says, referring to the pure white bones that were left at the end of the process.

However, they felt that the top-loading machine, designed to process several bodies at once, was undignified.

鈥淚t closed like a clam and we didn鈥檛 like that,鈥� Fisher recalls.

鈥淲e said, 鈥楥an you turn that cylinder in the other direction? Can you place a basket or tray in it with little holes that can move the fluid around during the course of the cycle and afterwards all the bone and all the prosthetics and everything are sitting in the tray?鈥� And that is what they designed for us.鈥�

The new digester was an early prototype for the machine at Bradshaw鈥檚 in Stillwater, though it wasn鈥檛 quite so easy to use. Before each process the operator had to tighten 11 bolts on the door with a spanner, like a mechanic replacing a bus wheel.

But Sullivan saw the potential for the technology to be used commercially in funeral parlours.

After WR2 went bust in 2006 he formed a new company, Resomation Ltd, while his former CEO at WR2, Joe Wilson, formed another company, Bio-Response Solutions - and the two became the Pepsi and Coke of alkaline hydrolysis.

The last decade has been a challenging one for both men.

鈥淚t鈥檚 a conservative market,鈥� says Sullivan. 鈥淲hen you come in with a new idea, you know, it kind of puts the cat among the pigeons and you鈥檙e not easily accepted.鈥�

It was the same for the pioneers of cremation, in the late 19th Century.

In the UK, when the Cremation Society built a crematorium in Woking in 1879, the townspeople protested - leading the home secretary to ban the practice until Parliament approved the idea, and introduced legislation to govern it.

As it turned out, the advocates of cremation did not have to wait that long.

In 1884, a well-known Welsh eccentric and self-styled druid, William Price, attempted to cremate his infant son鈥檚 dead body on a hilltop in Llantrisant.

He was arrested, but at his trial he argued that no laws stated cremation was illegal - and the judge agreed.

Price was acquitted and Woking crematorium began operations the following year, without waiting for regulation.

Several more crematoria were built in the UK before the Cremation Act was passed in 1902. It then took decades for the practice to become completely accepted.

It was only in the late 1960s that cremations outnumbered burials, and today there are three cremations for every one burial.

In the US, the process has been much slower. Over the past few years cremation has gradually been reaching parity with burial, and may now have overtaken it.

The regulatory vacuum that once surrounded cremation in the UK is now repeated with regard to alkaline hydrolysis.

鈥淚t鈥檚 a Catch-22,鈥� says Sullivan. 鈥淲e鈥檝e been waiting for them to pass a law to regulate it, but it鈥檚 not going to happen. So we鈥檙e going to install one and force them to pass primary legislation to allow us to be regulated - because we want to be regulated.鈥�

Planning permission has been granted for a Resomation machine to be fitted at Rowley Regis Crematorium in Sandwell in the West Midlands, though the water authority has yet to issue a permit for the effluent to be drained into the sewer. Sullivan says he does not expect a problem.

The cost of such a machine is equivalent to, or slightly less than, the cost of filtration equipment that crematoria in the UK have fitted to capture mercury emissions.

But Harvey Thomas, chairman of the Cremation Society and chairman of the board that owns Woking Crematorium, says the business case is not sewn up.

If the people who might choose alkaline hydrolysis are the people who would otherwise have chosen cremation, there is no commercial benefit for the crematorium, he points out.

鈥淐ommercially, all you are doing is losing one procedure and switching it to another. Whereas, in order to be commercially profitable, you would have to have people who were previously going to be buried deciding to do Resomation.鈥�

He also notes that it only takes an hour to incinerate a body in a cremator, while Sullivan鈥檚 machine, the fastest on the market, takes three or four times that long to digest a body. So the potential income per day is lower.

If North America has been slower than the UK to warm to cremation, it is well ahead with alkaline hydrolysis.

It has been approved in three Canadian provinces (accounting for two-thirds of the population) and 14 US states, with a further five states mulling legislation at the moment.

It has been an uphill struggle though.

A state鈥檚 funeral rules are written into law by the local Board of Funeral Directors and Embalmers.

Too often, Bio-Response鈥檚 Joe Wilson says, they are a 鈥済ood ol鈥� boy鈥� network that sees no value in challenging their successful business models.

And in at least four states, the Catholic Church has played a critical role in blocking alkaline hydrolysis.

It鈥檚 not just the Catholic Church that takes this view.

The tipping away of the tea-coloured effluent troubles some people, whether they are Catholic or not.

鈥淭hat creeps them out,鈥� Philip Olson, a philosopher at Virginia Tech who has charted the rise of alkaline hydrolysis.

But Olson, who once worked as an embalming assistant, points out that in the traditional processes of burial, cremation and embalming a distinction is made between funeral 鈥減roduct鈥� - for example, the ashes - and 鈥渨aste鈥�.

鈥淚f you look at the process of embalming, all of the blood that is drained from the body and the viscera that are extracted through the aspiration of the body cavity are sent down the drain as well,鈥� he says.

And unlike the effluent from alkaline hydrolysis, these blood and guts contain human DNA.

One reason attitudes to alkaline hydrolysis vary, Philip Olson says, is that people have different concepts of the corpse.

For some, the dead body is primarily a sacred object, while for others it is something dangerous, to be sealed away underground within layers of steel and concrete.

The real fans of alkaline hydrolysis are those in the 鈥渆co-death鈥� movement, he says, who see the body as a potential source of nourishment for plants and animals.

The unloved effluent makes very good fertiliser - Joe Wilson says that some of his veterinary customers spray it on their lawns.

Even when the tea-coloured liquid goes to the drain, it serves a useful purpose - it reportedly helps feed the bacteria in water treatment plants.

This is not an aspect of alkaline hydrolysis that you are likely to see in any promotional materials.

When legislation on alkaline hydrolysis was drafted in New York, a few commentators drew a link with the 1973 dystopian movie Soylent Green, which imagines an America of the future in which dead bodies are recycled into high-energy green biscuits.

Others dubbed the legislation, which failed, 鈥淗annibal Lecter鈥檚 Bill鈥�, a reference to a series of novels by Thomas Harris, about a serial killer who ate his victims.

Some funeral parlours that offer the service keep quiet about it, for fear of upsetting the community.

But market research has found that while a minority will always find the idea of alkaline hydrolysis unpleasant, if it is marketed in the right way - perhaps as green cremation, bio-cremation or water cremation - a section of the public can see its benefits.

Barbara Kemmis, the executive director of CANA, the Cremation Association of North America, relates a conversation about alkaline hydrolysis with two delegates at the recent International Cemetery, Cremation and Funeral Association Convention in Nashville.

鈥淭his person was just so disgusted by it, didn鈥檛 even want to have the conversation,鈥� she recalls, 鈥渁nd the other person was like, 鈥楩or me, that鈥檚 like a final spa treatment.鈥�

鈥淚鈥檇 never heard that before, but I thought, 鈥極K!鈥�

Jason Bradshaw鈥檚 73-year-old father Jim has seen many changes in his business over the years - not only the rise of cremation, and the arrival of alkaline hydrolysis, which has proved so popular at the Bradshaw Celebration of Life Center.

鈥淔ifty years ago people came in to visit with you and they鈥檇 say, 鈥楢t my church we do it this way,鈥欌�� he recalls.

鈥淧eople come in today, and they say, 鈥榃ell, we鈥檙e not sure what we鈥檙e going to do. We might have it at a local bar. We might have it in a park. Well, I don鈥檛 know - maybe we鈥檒l have it in the church, and by the way, will they let us serve liquor?鈥欌��

Surprisingly, he hasn鈥檛 made a final decision about what will happen to his own body after he dies.

He doesn鈥檛 much like the idea of flame cremation, but he鈥檚 not sure about green cremation either.

It鈥檚 seriously tempting, he says, to instruct the firm to bury him in a casket that has been kicking around the storeroom for a long time - 鈥渋t鈥檚 one way to get rid of it.鈥�

But at the moment, he likes the idea of a natural burial best - no casket, no steel or concrete-lined vault, just a blanket around him to keep him warm.