The Shadow
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The Shadow

The Great Pause Week 91: The Diaper Index

In Japan they have a new indicator for the population demographic — adult diapers.

― Robert A. Heinlein

Scientists and engineers like to use charts and indicators to aid in the visual representation of complex data. We all think more clearly when we can visualize something. In Japan they have a new graphical indicator for the population demographic — diapers.

Unfortunately these are not the kind that typically wrap the bare bottoms of babies. These are the kind keeping geriatric butts sanitary. In rapidly aging Japan, more diapers are used by older, incontinent people than by babies. Were it not for immigration, mainly from Asia and Latin America, the same might be true in the United States.

In Japan population change is becoming a waste problem more than an immigration issue. Waste from adult diapers is growing by tens of thousands of tons per year and most municipalities just incinerate the contaminated plastics. A few draw the heat off for buildings and hot water systems. In Houki, a town of just over 10,500 people in Tottori Prefecture, adult diapers represent about a tenth of the town’s trash. Houki makes its dirty diapers into fuel to reduce natural gas heating costs of the municipal-owned swimming pool.

The New York Times, December 3, 2021

The larger issue that diapers wrap is human scale in a finite space. As the Japanese population both ages and shrinks at the same time, incontinence products for seniors grow, just as do the needs for senior health care, retirement homes, and morticians.

One smart company is seizing the opportunity to bring diapers into the new carbon economy that will reverse climate change. Iwamoto Inc. developed its line of Super Stone Clean. The evolving generations of its patented Z series pyrolyzers advertise high-volume on-site diaper processing, municipal solid waste reduction, energy and secondary product creation. By pyrolyzing (carbonizing in the absence of oxygen) rather than incinerating (burning or oxidizing), Iwamoto makes biochar rather than ash. Although it likely contains plastic residues unsuited for agricultural uses, this kind of biochar can be applied in applications like biocrete or wallboard for buildings. It can also be made into plastics. Unicharm, one of Japan’s largest diaper manufacturers, has built a pilot plant in Kagoshima, in southern Japan, where it is recycling diapers back into more diapers.

… the machinery emitted a faint yeasty, toasted smell as pellets rained down from a bright orange chute into a large plastic box…

In 2021, after a summer of small-scale testing, the enterprising Norwegian company Snøhetta teamed up with experienced contractors, researchers, producers and suppliers within the concrete and biochar industries to erect Norway’s first carbon negative precast concrete wall. A Snøhetta press release said:

Now imagine the cities of the future cast from your grandfather’s soiled diapers and energized by your own toilet wastes. To paraphrase Heinlein, “a human being should be able to change a diaper and plan a building at the same time.”

The COVID-19 pandemic has destroyed lives, livelihoods, and economies. But it has not slowed down climate change, which presents an existential threat to all life, humans included. The warnings could not be stronger: temperatures and fires are breaking records, greenhouse gas levels keep climbing, sea level is rising, and natural disasters are upsizing.

As the world confronts the pandemic and emerges into recovery, there is growing recognition that the recovery must be a pathway to a new carbon economy, one that goes beyond zero emissions and runs the industrial carbon cycle backwards — taking CO2 from the atmosphere and ocean, turning it into coal and oil, and burying it in the ground. The triple bottom line of this new economy is antifragility, regeneration, and resilience.

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#RestorationGeneration #Regenerosity

— Climate Scientist Michael Mann, January 13, 2021.

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Albert Bates

Emergency Planetary Technician and Climate Science Wonk — using naturopathic remedies to recover the Holocene without geoengineering or ponzinomics.