Humans have an enormous impact on planet Earth, but from both an animal welfare and an environmental perspective, perhaps nothing is more important than our diets.
In 2022, more than 82 billion livestock animals were slaughtered for meat, according to the Food and Agriculture Organization of the United States, with the majority of those animals being factory farmed. In addition to enormous animal welfare implications, the practice of farming animals is estimated to account for somewhere between 11% and 20% of all greenhouse gas emissions.
All things considered, what is the most ethical diet? According to utilitarian moral philosopher Peter Singer, it’s one that includes zero — or at least very few — animal products.
Singer is among the most influential living philosophers and is widely credited for putting animal ethics on the map with his controversial 1975 book, Animal Liberation. Because most nonhuman animals have the capacity to suffer, Singer argues, we should not exploit their suffering for our own good, particularly with the horrific conditions of practices like factory farming.

Peter Singer at his office in Princeton University on Sept. 22, 2022. Derek Goodwin Photography
More recently, he published an extensively revised version, Animal Liberation Now, which brings to light the brutal living conditions for tens of billions of animals today.
I recently had the pleasure of interviewing Singer and discussing speciesism, the conditions of factory farming and how to have an ethical diet.
You’re widely regarded as the father of the animal rights, or as you may prefer, the animal liberation movement. Can you make your case for the pursuit of animal liberation?
The case for the animal liberation movement is that to disregard or discard the interests of beings because they’re not members of our species is indefensible. I use the term “speciesism” to describe that, and that is intended to make the parallel between other -isms such as racism and sexism that most people — certainly I hope the audience that I’m addressing — reject and say that although the analogy is obviously not complete, in all of these cases there’s been a dominant group which has developed an ideology to enable it to justify using a group that it dominates. In one case, nonwhites, in another case, women, and then in this case, nonhumans. To justify using that group for its own purposes in ways that are clearly very harmful to the group, but somewhat beneficial to the dominant group.
So I think we ought to be able to see that the difference in species is not relevant to how bad it is when a being is suffering, if the being is capable of suffering. What matters is how much the being is suffering, what kind of suffering that is — can we compare it with the suffering that we humans may experience? To some extent, I believe we can. And when we make that comparison, it’s not difficult to see that there are many areas in which we inflict immense suffering on nonhuman animals for either no benefits or minor benefits to humans. So I think it follows from the idea of equal consideration of similar interests — which is a principle that I think should hold irrespective of species — it follows from that that many of the things we do to animals are unjustifiable, and that’s the case for animal liberation, or if people want to so put it in terms of recognizing the rights of animals, or, I would say, the case for equal consideration for similar interests across species.
Should we all become vegan or vegetarian?
I would say not in absolutely all circumstances, but if we’re thinking about the situation of somebody who has the option of nourishing themselves well, having an adequate diet, being healthy without consuming animal products, and if those animal products come from commercial enterprises where there’s a profit motive for not being concerned about the wellbeing of the animal beyond productivity of the enterprise, then I think it does follow that we ought not to be consuming those products.
So as I say, there are various other circumstances — that would be circumstances of people who can’t nourish themselves adequately without eating animal products — they have a much larger sacrifice to make than others. And there may be cases where you’re not getting your animal products from large commercial enterprises where the animals have good lives and are humanely killed that would need separate consideration, but the claim I make is one that obviously applies to billions of people in the world today, so that’s enough, I think, to try to get that changed.
You first published Animal Liberation in 1975. And then in May of 2023, you published an updated version, Animal Liberation Now. Surely, much has changed in terms of factory farming practices, the state of animal welfare, among many other factors. In your view, what are some of the most significant changes since 1975, and what made you decide that it was time to publish a revision of Animal Liberation?
Obviously there has been a lot of changes and that’s why it’s really virtually a new book, rather than just a new edition because I’d say probably about half of the text is new. And not so much on the philosophical argument that I just gave you. I think that that has stood up very well to criticism and discussion. But the two longest chapters of Animal Liberation are largely factual where I’m describing research done on animals, and the other describing factory farm conditions. Those chapters had to be completely rewritten. And then there were other discussions about climate change, for example — which was not on my radar or not on many people’s radars in 1975 — had to be brought in because that’s very relevant to the ethics of eating animal products. And I wanted to talk a bit about the progress that the animal movement has made and the progress that it has not made. So those are important changes to the book, and I wanted to talk about that — the new discussion about ethical questions relating to animals, which again was very much a neglected issue, hardly an issue that anybody touched upon in 1975, but now has quite a major literature. So a lot of different things. And also, I should add, there’s more research on animal sentience. So I think we can have more confidence in saying that fish, for example, are sentient, which is something that some people questioned after the first edition was published. And the sentience of octopuses, and even some crustaceans, like lobsters, I think is now much more firmly established than it was. So there’s been a lot of science that has supported the view that I was taking about animal sentience and actually has extended it.

Peter Singer with a previous version of Animal Liberation, on Sept. 22, 2022. Derek Goodwin Photography
In terms of the most significant changes, well, I think some things have gotten better and some things have gotten worse. I talked about the improvements in regulation of factory farming in a few places, most notably the European Union. Also some states of the U.S., but only a minority, particularly California, which passed stricter legislation. So those are good things, but there have also been negative developments. In the case of the chicken industry — chickens are, by far, the most numerous of the land-based vertebrate animals we raise for food — that’s gotten worse because chickens have been bred to grow even faster. And this causes all sorts of problems for them and causes skeletal abnormalities. And they put on weight so fast now that their legs are immaterial for bearing their weight. Chickens are slaughtered when they’re very, very young birds — about six weeks old when they’re slaughtered. And so they’re really babies and their leg bones just aren’t strong enough to support the weight that they’ve put on because they’ve been bred to eat so much and grow so fast. So there’s actually a new cause of pain to bear. They have difficulty bearing their weight, difficulty standing up and walking around because of how fast they’ve been bred to grow. So there are new developments, like that, that make factory farming even worse in some respects than it was.
You describe yourself as a flexible vegan. So you must believe that there’s at least some wiggle room when it comes to having an ethical diet.
That’s because, you know, my ethics are utilitarian or consequentialist. I’m always looking at the consequences of what I do, and my ethics is not about rigid rules. So for me, being vegan is not like somebody — a religious person — who will only eat halal or kosher meat and will think it doesn’t matter how much non-kosher or non-halal meat you eat. It’s just wrong to do it and the wrong would be as great if you ate more of it or less of it. But for me, I want to not be complicit in supporting these industries that treat animals so badly. And the degree of complicity obviously varies by how much I’m spending — to what extent my dollars are supporting those industries. So if for most of my everyday shopping, I avoid animal products, but sometimes when I’m traveling there’s nothing much to eat that doesn’t have some, you know, something like a dairy product, let’s say in it. It’s not a significant contribution that I’m making, and if it’s going to be really difficult for me to get anything to eat that doesn’t contain an animal product — or if I’m in social circumstances where it would disturb the group if I said no, I can’t eat anything here — I’ll eat something that’s vegetarian but not vegan. So that’s the sense in which I’m flexible.
So for people who recognize the cruelty of factory farms and the climate implications of factory farms, and even the climate implications of organic animal farms, but don’t feel ready to commit fully to veganism or vegetarianism, how can those people eat more ethically?
Well, they can still avoid factory farmed products which I think is really important, because that’s where the vast majority of the suffering we inflict on nonhuman animals is. So I would say, depending on how much you feel you want to eat in terms of animal products, I think if you’re talking about the most affluent countries, including the United States, the animal product that perhaps is most easy to get in a form that is not ideal, but is still acceptable, would be eggs from pasture-raised hens. So if you can find a farm that is producing eggs, and the hens really are out on pasture — it’s not just that they’re cage-free, which still might mean that they’re locked up in a big shed — but they’re actually able to go outside and exercise, chase insects, dust bathe, all of those things that are natural for the hens, then you could at least say, well, if the hens are having a reasonably good life here (and sure they’re going to get killed prematurely, and sure the male chicks of that breed are going to get killed immediately on hatching because they’re of no commercial value), it’s a better product definitely than products from animals who are inside all of their lives, very crowded. So I would start with that.
After that, it does get harder. Many people will say, well, what about dairy products from organically raised cows — cows who are outside on pasture again. And that’s certainly better from an animal welfare point of view — as for that matter is beef from grass-fed cows — but it’s worse for the climate, because cows are ruminants and they emit a lot of methane. And the fact that they’re on grass doesn’t really help in terms of reducing their methane output. It’s still there. And in fact, some studies suggest that with grass-fed beef, it’s actually higher, because if you don’t feed them on grain as most beef is fed, for at least the last six months of their lives, they put on weight more slowly, and so for each pound of beef produced there’s more digesting and more methane produced. So you know, that’s a dilemma. But again, if people say, well, I just want to do this occasionally as I need it, or I’m not prepared to go without it, maybe eating small quantities of grass-raised or pasture-raised dairy or beef products might be the next thing to do.
I understand that you’ve recently stepped back from your teaching role at Princeton. So if you don’t mind sharing, what’s next for you?
Yeah, you’re right, I taught my last semester at Princeton now but I’m I’ve got plenty of opportunities to write, to speak, to give interviews like this one. And I’ve got offers of taking visiting positions in other parts of the world which I plan to do, the first of those probably going to Singapore for about a month during 2024. There are other possible places that I will be going to and speaking out in Europe and possibly in Asia. So yeah, I’m planning to keep pretty busy.
That’s all the questions that I had prepared for you. But I’d also like to ask if there’s anything else you’d like to share? Maybe something that we haven’t touched on that you’d like to add?
Oh, I think we’ve covered quite a lot. Obviously, I have a broader interest in bioethics beyond what we’ve spoken about. And so there are a variety of things I’m interested in and I’m continuing to work with the organization The Life You Can Save, which tries to encourage people to give to the most effective charities helping people in extreme poverty. So I think that’s also an important thing to do. And if people want to know more about my work there, they can have a look at my website, petersinger.info, or also go to thelifeyoucansave.org where they can download a free digital copy or audio copy of my book The Life You Can Save and learn more about my work for people in extreme poverty.
The post A Philosopher’s Guide to an Ethical Diet: A Conversation With Peter Singer appeared first on EcoWatch.
https://www.ecowatch.com/peter-singer-interview-ecowatch.html
Green Living
Earth911 Inspiration: Steven Johnson — Innovation Is Like Time Travel
Earth911 inspirations. Post them, share your desire to help people think of the planet first, every day. Click to get a larger image.
This week’s quote from author and PBS host Steven Johnson gives us confidence that the post-carbon economy can be achieved: “[E]very now and then, some individual or group makes a leap that seems almost like time traveling.”
This poster was originally published on August 9, 2019.
The post Earth911 Inspiration: Steven Johnson — Innovation Is Like Time Travel appeared first on Earth911.
https://earth911.com/inspire/earth911-inspiration-steven-johnson-innovation-is-like-time-travel/
Green Living
Best of Sustainability In Your Ear: Plastic Bank’s David Katz on Grassroots Recycling Solutions
Turn back the clock to our first conversation with David Katz, founder of Plastic Bank. He shares his vision for a regenerative society built on grassroots recycling programs that help low-income regions build resilient communities. The Vancover, B.C., startup compensates more than 30,000 plastic recyclers in the Philippines, Indonesia, Brazil, and Egypt. To date, Plastic Bank has stopped over 99 million pounds of plastic waste — the equivalent of more than 2 billion plastic bottles — from entering the world’s oceans, and the pace of its collections is accelerating. The people who collect plastic are paid for the material they deposit at more than 511 Plastic Bank branches. Katz’s team has partnered with more than 200 companies, including Procter & Gamble, HelloFresh, L’Oreal, and Coca-Cola, to create circular economies in plastic packaging.

Their next goal is to capture 10 billion bottles, which still represents only 1.7% of the 583 billion produced in 2021, according to Euromonitor. David explains that a shift in mindset from extractive ownership to regenerative stewardship can break the economic mold and bring prosperity in regions where so much valuable material currently is treated as waste. Plastic Bank uses a blockchain-based data collection and reporting system that helps collectors track their earnings and which provides transparency and traceability for the plastic captured. Plastic Bank works with plastic recyclers to convert the collected bottles into SocialPlastic, a raw material for making new products. They sell plastic #1, #2, and #4 to industry to recover their costs. You can learn more about Plastic Bank at plasticbank.com.
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Editor’s Note: This episode originally aired on March 23, 2022.
The post Best of Sustainability In Your Ear: Plastic Bank’s David Katz on Grassroots Recycling Solutions appeared first on Earth911.
https://earth911.com/podcast/earth911-podcast-plastic-banks-david-katz-on-grassroots-recycling-solutions/
Green Living
Sustainability In Your Ear: Don Carli On Tuning What We See Online To Reduce eCommerce Returns
$850 billion. That’s what retail and e-commerce returns will cost in 2026, generating 8.4 billion pounds of landfill waste — and a surprising share of it involves products that worked perfectly. They just didn’t look the way people expected. About 22% of consumers return items because the product looked different in person than it did online, and for home goods and textiles, that number climbs higher. The culprit has a name: metamerism — the way colors shift under different light sources, so the navy sectional and the matching throw pillow that looked identical on your screen clash under your living room LEDs. Don Carli, founder of Nima Hunter and Senior Research Fellow at the Institute for Sustainable Communication, joins Sustainability In Your Ear to explain why this keeps happening and what it would take to stop it.

The fix isn’t a moonshot. The relevant standards — glTF for digital rendering and ICC Max for physical material appearance — already exist and were designed to be connected. Digital textile printing already makes it possible to produce fabrics with pigment recipes that match under any lighting condition, not just one. What’s missing is coordination: brands putting spectral consistency requirements into their supplier purchase orders, the same way the GMI certification transformed packaging quality once Target and Home Depot required it. The Khronos 3D Commerce Working Group has already standardized how products look across digital screens — the next step is bridging that standard to the physical object. When we get this right, a sofa stays in the home it was ordered for instead of traveling a thousand miles back to a distribution center and ending up in a landfill. That’s what circularity looks like when it’s applied to the seam between the digital world and the physical one. Follow Don’s work at WhatTheyThink.com and on X at @DCarli.
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Interview Transcript
Mitch Ratcliffe 0:08
Hello — good morning, good afternoon, or good evening, wherever you are on this beautiful planet of ours. Welcome to Sustainability In Your Ear, the podcast conversation about accelerating the transition to a sustainable, carbon-neutral society. I’m your host, Mitch Ratcliffe. Thanks for joining the conversation today.
Let’s take another look at the topic of e-commerce returns and how to reduce them by tuning the economy for less waste. We’re going to start with making what you see online look like what you receive on your doorstep.
Now here’s a number that should stop you in your tracks the next time you shop online: $850 billion. That’s how much retail and e-commerce returns will cost in 2026. And here’s another number: 8.4 billion pounds of landfill waste generated by those returns in a single year — roughly the same as burying 10,500 fully loaded Boeing 747s in the ground. That’s a lot of waste.
Now you might assume that most of these returns are about fit — pants that don’t fit, shoes that pinch. But 22% of consumers report returning items because the product looked different in person than it did online, and for home goods and textiles categories, where fit isn’t the issue, that percentage climbs even higher. A sofa that passes every quality specification still gets returned because it clashes with the throw pillow that also passed every specification — when they don’t look alike in the home, both can end up in a landfill, because repackaging costs more than recovery.
Today’s conversation is about why that happens and what we can do about it. My guest today is Don Carli. Don’s a good friend and the founder of the consulting firm NEMA Hunter Incorporated. Two of Don’s recent articles on the site What They Think got me thinking about how an apparently esoteric discussion of color calibration and spectral profiles actually represents something much larger — the fine-tuning we can do to the 20th-century industrial system that was never designed to connect digital promises to physical reality.
Don is also a Senior Research Fellow with the nonprofit Institute for Sustainable Communication, where he has directed programs on corporate responsibility, sustainability, advertising, marketing, and enterprise communication. He’s also a member of the board of advisors for the AIGA Center for Sustainable Design and a member of the Institute for Supply Management.
So here’s why this matters beyond the print and packaging industry, where Don has spent most of his career. The 20th century built industrial systems optimized for mass production: make a lot, ship it out, and hope people keep it. These systems created enormous efficiencies on the one hand, but they also created enormous waste — often hidden in the seams between suppliers, brands, and retailers, where no single stakeholder owns enough of the problem to force a solution. In fact, it really means nobody lost enough money to care.
What Don’s work reveals is that we now have the technical architecture to fine-tune these legacy systems — not replace them, but recalibrate them. The standards exist. The measurement hardware exists. The digital rendering pipelines exist. What’s missing is the coordination: getting brands, retailers, and others to share data they currently hold separately, and to recognize that the costs they’re each absorbing individually are symptoms of the same system failure — a failure of color calibration.
And this is what sustainability can look like in practice: not moonshot reinventions, but the patient technical work of closing gaps between digital and physical, between specification and reality, and between what we promise customers and what we deliver. If we get this right, we can reduce waste, cut costs, and rebuild trust with consumers who’ve learned to expect that what they see online isn’t quite what they’re going to get.
You can follow Don’s work on X. His handle is @DCarli — that’s spelled D-C-A-R-L-I, all one word, no space, no dash.
So can we calibrate what we see online with what we experience when we open a package, reducing the need to return a purchase? Let’s find out after this brief commercial break.
[COMMERCIAL BREAK]
Mitch Ratcliffe 4:29
Welcome to the show, Don. How are you doing today?
Don Carli 4:31
Fantastic, Mitch. I’m really glad to be here with you today and looking forward to the conversation.
Mitch Ratcliffe 4:37
Always great to talk with you, Don. This came up in our discussions over the past couple of months, and then I read the article and wanted to follow up. To start off, can you walk us through a typical scenario? A customer orders a navy sectional and a matching throw pillow from different suppliers. They appear to be the same color — they both pass all the quality specifications we’ve talked about — but under the living room lights, the consumer finds they clash. What happened between the approved image and her disappointment? Where did the system break down?
Don Carli 5:15
We’ve all had this experience at some point in our lives. In part, it’s because of the nature of human perception. We would like to think that color is a constant thing, but color is an interaction of multiple variables.
One variable is the light source — specifically, the distribution of wavelengths in that light. As you know, the visible spectrum is a small part of all the radiation there is. There’s ultraviolet light you can’t see, there’s infrared light you can’t see, and then there’s all the colors in between — the ROYGBIV: red, orange, yellow, green, blue, indigo, violet — the colors we’re familiar with. Every light source has a different distribution of those energies.
Second, the material an object is made of has its own capacity to absorb different wavelengths, and that can vary. So you have variation in the energies emitted by the light source, variation in the energies absorbed and reflected by the object, and then there’s the viewer. Our visual system takes up a big part of our brain — it’s not just our eyes, but our eyes have a lot to do with it. Some of us are colorblind, for example, and in other cases, color is simply not a constant thing.
I worked with the Bauhaus artist Josef Albers for many years — he wrote the book The Interaction of Color. He used to say, ‘When you put one color next to another color, you get a third color for free,’ because those two colors interact with each other.
To put it simply: you put on a pair of socks and a pair of pants in your bedroom under incandescent light. The pants are brown, the socks are brown. You go out into the daylight. The pants look green. The socks are still brown. What happened? The light changed. Because daylight has more energy at one end of the spectrum, it reflects more blue light, making the brown look greener.
Mitch Ratcliffe 7:56
That’s really interesting to think about — how we’ve moved from an era of commerce where, say, items in the Sears catalog were originally sketched, versus photographed. As we introduced greater verisimilitude in our catalogs, or on Amazon —
Don Carli 8:17
We set expectations differently. Exactly.
Mitch Ratcliffe 8:20
So how should we think about the expectations we’re setting — both as sellers of things and as consumers? How should we be thinking about this?
Don Carli 8:30
In part, most of this is simply not taught. Most students in grade school, high school, or even university are not given any exposure to the psychology of human perception. There’s a physiological and psychological basis to all of this, and we just don’t know about it.
The problem has always existed. What’s happened with e-commerce — and with sophisticated computer graphic rendering of objects that don’t yet exist in the real world but look real — is that we’re setting expectations. On my screen I see this couch. It looks brown. The pillows look brown. So I expect that when they arrive, they’re both going to look brown.
Unfortunately, the lighting in homes now is no longer even incandescent. LEDs have really unusual spectral curves — they can be the problem. If I had been able to see what those items were going to look like under the lighting in my home, I might be less disappointed. I’d say, ‘Oh, wait — they don’t match.’ But in developing the systems for e-commerce, the companies that develop software for rendering — the tools designers use to develop the rendering of images for websites and monitors — simply don’t take these things into consideration.
Mitch Ratcliffe 10:10
Our economy was massified in the 20th century but it’s moving toward personalization in the 21st century. And what you’re describing — what you named in the article — is metamerism.
Don Carli 10:21
It’s not my term. It’s metamerism — or ‘metamerism,’ yes. That’s fine.
Mitch Ratcliffe 10:27
This phenomenon, combined with changing lighting technology and the changing nature of our homes — which can allow more or less light in, and offer a variable lighting palette —
Don Carli 10:37
A variable lighting palette, yeah.
Mitch Ratcliffe 10:38
— suggests that the palette will always be changing. So how do we create consistent expectations among consumers when we’re trying to communicate what we offer?
Don Carli 10:57
Well, standards help to begin with. We do not have a set of coordinated standards today that allow the designer to anticipate the observer’s environment and lighting conditions for a given product. Second, we don’t have standards in place to communicate between what the designer intends and what the manufacturer produces — because it is possible to create pigments and dyes that do not exhibit metamerism. Really.
It’s been standard practice in some industries where it matters. If you go to an informed paint company and say, ‘I want a non-metameric match of this swatch,’ they would use a device called a spectrophotometer, which measures the absorption curve of the pigments employed — so that under any lighting condition, the appearance doesn’t change, because the curves have been matched.
But I can create a match that only looks correct under one light source, which is typically what happens when people revert to either a monitor — which only has three emitters: red, green, and blue — or printing, where typically you have cyan, magenta, yellow, and black. If you want to truly match, you have to match the curve.
New printers being used for digital textiles actually have 10 channels, and it is possible to use pigments across those channels to make the absorption curve of the material non-metameric — or at least less metameric. We’re waiting for standards to come together, and that will only happen, I believe, if the brands suffering the greatest economic loss from this mismatch problem take action to put the requirements in their purchase orders and to support pilots that address that 22% of returns due to color perception that you described.
Mitch Ratcliffe 13:27
You do point out that IKEA, Amazon, Wayfair, and others have funded the Khronos 3D Commerce Working Group to ensure that products look consistent across different apps and websites. So they want consistency when rendered on a digital screen, but they’re apparently okay with the fact they don’t look the same when they arrive?
Don Carli 13:54
Yes, I like the disconnect. It’s interesting. First of all, it would require collaboration across industry — across groups that don’t typically talk to each other. I don’t think it’s willful. I think it’s more like, ‘Wow, they just haven’t gotten around to that.’ Nobody fully realized how much was at stake. And the potential for a connection between the two standards that do exist is actually very good and straightforward, because they’re both extensible standards.
What’s needed — as I said — is for the businesses that are right now losing approximately $850 billion a year due to returns to ask: How much of that is attributable to consumers who’ve been given permission by e-commerce companies to say, ‘Something doesn’t look right, so I want to return it’? We’ve made it easy to return things.
Mitch Ratcliffe 15:09
The customer was always right.
Don Carli 15:11
That’s correct. And it’s going to be hard to put that one back in the bottle. So now we have to ask: out of the $850 billion — which is just the retail cost of the goods, not the cost of reverse logistics, not the cost of reprocessing, not the disposal of that returned product to landfill or incineration — if you take it all together, it’s probably $1.25 trillion, maybe even $1.5 trillion. And if you said, ‘Okay, but how much of that is because somebody said the colors don’t match?’ — even being very conservative, say 10% — that’s still enough money to justify addressing the root cause of the problem.
Mitch Ratcliffe 16:00
$150 to $200 billion….
Don Carli 16:03
Just rounding error, right? So you could say to companies like Adobe — that develop the software for rendering objects that are going to be manufactured — take IKEA as an example. IKEA doesn’t fill its catalogs, whether online or physical (though there’s no longer a physical catalog), with actual photography. Those are computer-generated images. They look real, but they don’t exist in the physical world when rendered. Very often, the product isn’t manufactured until after you’ve bought it — you bought it on the basis of a computer graphic rendering that looks photorealistic. It’s called Physically Based Rendering.
So if those systems were specifying color with the manufacturing process in mind — which is very often digital textiles printing — they could choose their colors to be less subject to metamerism, or even to specifically eliminate metamerism. They could also provide the ability to predict: run the model through a set of tests to see, ‘Is this design going to be subject to metamerism?’ And carry that logic forward to the manufacturer. They’d have to put that in their purchase orders. They’d have to bridge two standards — one called glTF, the other called ICC Max.
The point is, the consumer doesn’t need to know any of this. The consumer needs to understand that it’s possible to make things match under different lighting conditions — or at least to have less divergence from their expectations under different lighting conditions.
Mitch Ratcliffe 17:58
I agree that the consumer should be able to expect that. What I hear is that so far, the pain hasn’t been great enough. But we’re also at a point where simply reducing the waste would be worthwhile on its own, with other benefits as well —
Don Carli 18:10
Oh, absolutely. But the financial ones alone —
Mitch Ratcliffe 18:15
The financial ones are enough? Yes. And then all the environmental and social costs of returns on top of that. But let’s talk about how to actually hack toward a solution. Is it possible now — or over the course of the next decade, say — for me to have a phone app that I use in my home? I sample the light in the morning, I sample the light at noon, I sample it at sundown, and in the evening — sometimes with external light, sometimes with just internal. I could say, ‘This is my light profile. Give me things that will look like what I expect.’
Don Carli 19:00
That’s a great question. The question is: would the average consumer go to that extent? Probably not. But the retailer could do what amounts to a survey of the whole home that the products are going to go into. If it’s a major purchase — a couch, carpets, a new home — you could model the interior of that house very easily.
Technologies like Matterport, for example, can scan the interior of a house and give you a virtual view of what it looks like — they use it in real estate all the time. So that’s possible. And it’s also possible to model different lighting scenarios: you say, ‘I’m going to put in LED lighting with variable color temperature, so during the day I may look at it under one light, and at night it’s going to be warmer.’ You can factor in where natural light comes in through windows across the year.
But that may be overkill for most consumers. It might be appropriate for businesses — especially places where the harmony of floor coverings, wall coverings, and furnishing objects matters. Still, it shouldn’t be necessary for the average consumer.
Phones are increasingly gaining the ability to sense color in a spectral sense. I think within three years, that capability should be standard in most phones as a matter of course, and more specialized devices will be available for around $100 if you want them. But I think it’s really incumbent on the retailer and the brands — not on the consumer — to meet expectations first and foremost. And I think an increasing number of consumers who care about environmental and social costs are going to put that expectation on the retailer and the brand: model the environment, predict the degree to which the products being manufactured are subject to metamerism. Those variables can be measured and controlled in design and manufacturing so that the in-home or in-store environment is less subject to lighting variation affecting the perception of color match.
Mitch Ratcliffe 21:55
So I think this is a great place to stop and take a quick commercial break, because we’ve set the stage — and the lighting — to talk about what’s going to come next. Let’s figure out the hack. Stay tuned. We’ll be right back.
[COMMERCIAL BREAK]
Mitch Ratcliffe 22:13
Welcome back to Sustainability In Your Ear. Let’s get back to my conversation with my friend Don Carli. He’s founder of NEMA Hunter, a market research and product design advisory firm in New York City.
Don, so we understand the variability of light, the variability of settings, the combination of colors — all of these affect our perception of color. And we talked about the fact that phones will have increasing photographic analysis capabilities, so they can sense the full spectrum, not just what we see but the entire range of light affecting our perception. But as you say, it really is incumbent upon the retailer to have a solution that makes something look like my expectation when it arrives at my home. Is this a suggestion that the future of retail is more personalized — that there may be personal shoppers who come to your home early in a brand relationship and do a scan, or who give you the tool? Maybe they send it to you and you return it after completing your color profile. Are we at the beginning of really tuning the economy to deliver exactly what we want so that waste can be reduced?
Don Carli 23:29
I think there are examples of it already in place. There’s a very interesting company that grew out of a team of Navy SEALs and special operations people who had to model environments they were going to enter — and they couldn’t do that using big, complex systems. They needed a hack. They were able to take imagery from various sources and build a 3D model reconstruction of a building so they could plan their approach. One of them left and started a company called Hover.
This isn’t a commercial for Hover, but it’s an interesting case. Hover solved a problem for people who wanted to remodel the exterior of their homes. You could take your phone, take six to eight photos of your house from the exterior, send those photos to Hover, and they would create a 3D reconstruction of your home. Then they worked with manufacturers of siding, roofing, and windows, and allowed the builder to generate not only an estimate of what it would cost to put new siding and windows on your house, but a rendering of what it would look like. The precedent is there: the consumer had the device, nobody had to go out to do an estimate, the contractor loved it because they didn’t have to send anyone to measure — all done accurately using cell phone imagery.
Matterport is another company that makes a device for interiors and does the same thing. And there are small sensors that a retailer could send you that measure color temperature of light — but I don’t think that will be strictly necessary.
Mitch Ratcliffe 25:31
Nor necessarily environmentally responsible, to send out loads of sensors.
Don Carli 25:34
Exactly. So for the retailer, like Radio Shack, if it’s an in-store environment, that’s one thing — they do have the ability to simulate different lighting conditions in-store. Think of it like going to an audio shop —
Mitch Ratcliffe 25:54
You can’t do that anymore, but okay.
Don Carli 25:56
Just imagine going to buy a stereo, or to an audiophile shop —
Mitch Ratcliffe 26:03
We’re showing our age, knowing what that is.
Don Carli 26:05
They bring you into a listening room. The point is, it’s constructed for the purpose of evaluating what something is likely to sound like in your home. I think we can do the same thing in-store with variable lighting.
But online is becoming e-commerce where items are never in a store. You order from a computer-rendered image on your screen, and after your order is placed, the item is manufactured. That’s the link that has to be established: the link between the creator of the design for the object and the supply chain instructions provided to the manufacturer, so that the objects are not subject to metamerism — so they are less subject to variation in the lighting conditions in your home. It is a matter of giving the correct instructions about the materials to be used, and specifying how they’re to be measured by the manufacturer. The brands that design the couch, the pillow, the carpet, the curtain, the flooring — they should own the equipment to do the measurement and support the linkage of the standards that communicate how to maintain color consistency across different lighting and viewing conditions, so the consumer isn’t disappointed.
Mitch Ratcliffe 27:41
This brings me to another concept you introduced, which is the appearance bill of materials — which is in many ways similar to the digital product passports we’ve talked about on the show a number of times, which describe a product’s components and potentially how to recycle it. But this color profile — what would be involved in making that happen at scale? What would it look like to make that a common practice for a furniture retailer, for instance?
Don Carli 28:10
Think of recipes. The way a fabric is produced is changing because of digital printing. We used to make fabric in large quantities using dyes — extremely polluting, very complex — or with high-volume screen printing using fixed screens. Increasingly, fabric printing is achieved digitally, where you can print just one yard or 10 yards of a material using any palette of pigments, matched not just to look correct under one lighting condition, but to look consistent under any lighting condition.
The example of metamerism is: if I have two objects that are supposed to match, and under one lighting condition they do match, but under another they don’t — that is metameric. It changes. But if I blend, or use the right pigment recipe on a given substrate material, they will match regardless of the lighting condition. The pillow matches the couch, the wall covering matches the floor covering.
To do that, you have recipes. I’m going to use this combination of inks, and I have to measure them with a spectrophotometer. The specifier has to tell the manufacturer what the material characteristics are. It’s the same as saying, ‘Use butter, sugar, and flour’ — but not all butter, sugar, and flour are the same. Or like architects who say, ‘Use concrete, aluminum, steel, and wood’ — but what’s the actual recipe for the steel, the concrete, the wood? We have to be more specific at the design and manufacturing stages.
It is kind of like a digital product passport. The standard for glTF, which is used for Physically Based Rendering on monitors, is consistent for rendering on screens — but it doesn’t extend to the world of physical objects, inks, and substrates.
Mitch Ratcliffe 30:59
So that’s the link. Thank you. You’ve also pointed out that the GMI certification — which Target, Home Depot, and CVS began to require, and which describes packaging — was broadly accepted once those brands introduced it. Would color matching with the guarantee that it will look like what you saw when you receive it be a significant differentiator — a value-added differentiator — that would set a brand apart if they embraced and practiced it consistently?
Don Carli 31:34
Why not? We know that consumers are disappointed enough to go through the return process — and it’s not simple. It’s an annoyance. You’re putting people out of their way. They want their couch, they want their cushions, they want their floor covering. They don’t want to go through what it takes. It’s going to be another two weeks, and I’ve got to document all of this, and I have a party this Friday — we’re getting married, whatever it is.
So I think the demand is there. And what GMI established reflects something I believe has been true in manufacturing as long as I’ve known it: manufacturers are going to do what their customers call them to do. If the requirement in the purchase order is that you must adopt this standard or use this material, you don’t argue — if you want the work, you do it. But if you leave innovation in materials to manufacturers and expect them to market and sell it, that’s not their strength. They’re not marketers.
On the other hand, retailers and brands are marketers — and ultimately, the cost is not just economic but environmental and social. That’s where I think today’s consumers, if made aware, will be able to apply enough incentive to brands to build those linkages, use those standards to minimize the cost of returns and the environmental impact of returns, and have a positive impact on customer satisfaction, customer loyalty, and the ability to attract consumers for whom systems thinking and circularity matter.
Mitch Ratcliffe 33:30
So the cost of these returns — which we’ve estimated in the $1.3 to $1.5 trillion range — who actually ends up paying that? Would solving this problem represent a tangible reduction in costs for consumers overall?
Don Carli 33:47
It is costing consumers in the end. Let’s say a retailer bought the product for 25% of the retail price. So the thing sold for $100 but cost them $25. When they say they lost $850 billion, they’re estimating that at the full retail price — but it only cost them $25.
Mitch Ratcliffe 34:19
Of course, because that gives them an advantage in taxes — but if —
Don Carli 34:23
If in fact they’re losing 25% of their sales to returns, that’s still going to factor into what they mark things up to recover those costs. It does impact the cost to consumers in the end. And then there are the real costs associated with reverse logistics — shipping it back from you to the distribution center — and then that has to be reprocessed: someone has to inventory it now that it’s been returned, inspect it to see if it’s viable for resale, find a resale partner. Or, as some retailers now do, they simply keep them in huge containers labeled as ‘lot number four’ and have people bid on them sight unseen — unpack those, find the few things in the box that were worth something, and discard the rest.
Mitch Ratcliffe 35:33
So the consumer today expects greater and greater personalization, as you’ve described. On-demand manufacturing is a potentially scalable solution that’s beginning to emerge. But if we don’t master this metameric strategy, returns may actually increase — because the expectation is even greater that it should look exactly like it did when I ordered it.
Don Carli 35:59
Yeah. Appearance mismatch is not the greatest reason for returns — but it’s a substantial percentage.
Mitch Ratcliffe 36:12
My point is to think systemically, rather than just about this particular issue. Is this the right time for us to move toward on-demand manufacturing — particularly now that we want to reduce imports? And if we do that, who should convene the effort to create consistent perception of color and quality for that next generation of a much less wasteful economy?
Don Carli 36:43
I think it ultimately falls to the brands and the retailers, as well as the technology providers for rendering — for the design and rendering of the objects — because circularity and circular thinking is a systems design challenge. You want to design the problem out of existence, rather than trying to cope with it downstream.
There’s no question that the greatest potential leverage is through a better design process that anticipates these downstream factors that lead to returns — whatever they are, whether it’s appearance, fit, or any other reason why people return things. The ability to predict through true digital twins of the object is one key element. You need the NVIDIAs of the world, the Adobes, the Hewlett-Packards, and the instrument manufacturers who can measure color and surface characteristics — the things that allow you to define the recipe for making the object, as well as the recipe for rendering it on screen.
Those are the key stakeholders: the brands using those tools, the companies providing those tools, and the standards bodies that help to encode them in open, extensible standards that allow businesses to communicate one-to-many, instead of being locked into proprietary one-to-one communication chains.
Mitch Ratcliffe 38:26
If a brand is listening, what should their first diagnostic step be? Where’s the right place to begin?
Don Carli 38:36
The first step, of course, is to have a breakdown of the reasons for returns. If they want to address appearance mismatch, they need to know what percentage of their returns are reported by consumers as: ‘The product I received didn’t meet my expectations in appearance compared to what I saw on my screen or in the store.’ They need to know first: is this a problem big enough to make a business case for addressing it?
In most cases, I think they’ll find that if it’s 10%, 15%, or 20% of returns, that’s material. And if they looked at it not just economically but in terms of environmental and social impact — triple bottom line, if you will — I think they can make a business case for why they should seek out a group of like-minded brands to address the root cause through standards and paid pilot programs with manufacturers: to establish and prove that a workflow is possible, practical, and delivers results that reduce cost in a material way, reduce environmental impact in a measurable way, and have a positive impact on customer satisfaction, loyalty, and the ability to attract consumers for whom systems thinking and circularity matter.
Mitch Ratcliffe 40:15
You do a lot of product research and market research. Are brands thinking about this?
Don Carli 40:21
Not enough. Not enough. I believe brands like IKEA do take it quite seriously — and maybe that’s one of the luxuries of being a privately owned entity. So I think we can look to brands like IKEA for leadership. They’ve exhibited that in the past and can continue. But one brand can’t solve this. This is a bigger problem than any one brand can handle.
I think the path forward is really through a coalition of brands that work together and share the costs, the risks, and the benefits of connecting these existing standards — to the benefit of not just current consumers, but consumers going forward. And I think it will reduce the impact on the environment, help make better use of our manufacturing capacity and digital technology, and support onshoring more of our production. That’s an important way to minimize risk — not just the risk of returns, but supply chain risk as well.
Mitch Ratcliffe 41:39
What you’re describing is an optimized system that we don’t currently have. I know we’ve only scratched the surface of the color perception problem here, Don. Thank you for helping me understand it. How can folks follow what you’re working on?
Don Carli 41:53
I write on this topic in an industry publication called WhatTheyThink.com. And there is an active discussion taking place within the Khronos Group, 3D Commerce, and related standards bodies about this general concept of Physically Based Rendering. In the printing world, there’s another group called the International Color Consortium — ICC.org — that has been looking at the problem from a manufacturing perspective: how do you manage appearance, not just color but appearance overall, because it’s not only the color of a thing that can differ, sometimes it’s the surface characteristics or texture. These standards take both into consideration.
I think some preliminary discussions are starting to emerge — whether in Reddit or in these two groups, which are open — that are beginning to look at how these things connect.
Mitch Ratcliffe 42:59
There’s a saying that an airplane is a set of standards in flight. What we’re talking about here is the setting of a standard set of expectations about how our economy should work efficiently. I hope folks take to heart what we talked about today. I want to thank you for your time, Don; this was a fascinating conversation.
Don Carli 43:19
I think it can have a profound impact on the amount of waste that goes to landfill, and I think it will also improve the ability to satisfy increasingly conscious consumers along the way. Thank you, Mitch. Take care.
[COMMERCIAL BREAK]
Mitch Ratcliffe 43:49
Welcome back to Sustainability In Your Ear. You’ve been listening to my conversation with Don Carli, founder of NEMA Hunter, a market research and product design advisory firm in New York. Don’s commentary on color perception, metamerism, and the gaps in our digital-to-physical rendering pipeline appears regularly at WhatTheyThink.com — all one word, no space, no dash — and you can follow him on X at @DCarli, that’s D-C-A-R-L-I.
This conversation started with a sofa and a throw pillow that refused to match, and it ended somewhere much larger. The $850 billion in annual e-commerce returns we discussed — growing toward $1.25 to $1.5 trillion when you add reverse logistics and disposal costs — is what happens when a 20th-century industrial system tries to serve 21st-century expectations without changing its underlying architecture. The system was designed to produce at scale and absorb returns as a cost of doing business. The consumer was always right. The platform made returns frictionless. And what got lost in the middle — in landfills, in incinerators, and in the carbon cost of reverse logistics — was invisible to the balance sheet and to the customer who clicked ‘return.’ In other words, we engineered a system to overwhelm people with choice so that they would inevitably buy, but at the cost of tremendous waste.
So Don isn’t just describing a color problem. It’s a calibration problem — and calibration is a systems problem. You heard about all the parts of the solution that are available already. What doesn’t exist is a coordination layer: the shared commitment by brands and retailers to making a product and the recipe for showing it on screen speak the same language, so that it represents things accurately across a variety of different lighting settings.
The transition Don is pointing toward is from mass manufacturing to what we might call calibrated manufacturing — production designed not just to meet a specification, but to meet the specific expectations of one person. Personalized manufacturing. The on-demand, digital-first model that’s already emerging will only work if the variety of perceptions we experience is accounted for from the start. If we move to on-demand without solving the metamerism problem, Don warned, returns will increase, not decrease. We will have built a faster, more responsive system for disappointing people.
The circular economy framing that anchors so much of this podcast is usually applied to materials — keep them in use, close the loop on plastics, design products for disassembly and reuse. But Don’s argument adds a dimension we don’t talk about enough: design for reduced returns is design for circularity too. The waste reduction potential is real, and it needs to happen upstream — at the design and specification stage — before a single unit of the product actually ships.
This is what tuning the economy looks like in practice: not a moonshot reinvention of everything, but the patient technical work of closing the gaps — the many gaps between what we promise and what we deliver as businesses. The leverage points are well defined. Brands and retailers that own product specifications need to bridge the color standards challenge in their purchase orders. And consumers who are already demanding more and returning more can apply market pressure too, especially the growing segment of people for whom systems thinking and environmental impact are part of how they evaluate a brand. But we have to communicate that to the brand and to the policymakers around that market in order to drive systemic change.
Don’s closing thought is what stays with me: when we actually tune the system to deliver what people want and expect, we can stop producing waste that nobody intended and nobody wants. That’s not just good business. That’s what a circular economy looks like in practice when it’s applied to the seam between the digital world and the physical one — the place where, right now, billions of pounds of material quietly disappear into the ground.
We’ll continue to explore this — we’ll probably have Don back to talk more — and in the meantime, I hope you take a look at our archive of more than 550 episodes of Sustainability In Your Ear. We’re in our sixth season, folks, and I guarantee there’s an interview you’re going to want to share with a friend or member of your family. And by the way, writing a review on your favorite podcast platform will help your neighbors find us — because folks, you are the amplifiers that can spread more ideas to create less waste. Please tell your friends, your family, your co-workers, the people you meet on the street, that they can find Sustainability In Your Ear on Apple Podcasts, Spotify, iHeartRadio, Audible, or whatever purveyor of podcast goodness they prefer.
Thank you, folks, for your support. I’m Mitch Ratcliffe. This is Sustainability In Your Ear, and we will be back with another innovator interview soon. In the meantime, take care of yourself, take care of one another, and let’s all take care of this beautiful planet of ours. Have a green day.
The post Sustainability In Your Ear: Don Carli On Tuning What We See Online To Reduce eCommerce Returns appeared first on Earth911.
https://earth911.com/podcast/sustainability-in-your-ear-don-carli-on-tuning-what-we-see-online-to-reduce-ecommerce-returns/
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