There is a wonderfully satisfying moment that happens when you clean out your closet. You pull out the shirts you haven’t worn in years, the jeans that no longer fit, the exercise clothes you’ve replaced, and you fill a big bag. Then you take it to a donation center or drop it into one of those collection bins in a parking lot. The closet looks better, the clothes are gone, and perhaps best of all, you feel like you’ve done something good. Somebody else will use them. Problem solved.

Except that, increasingly, it isn’t.

That was one of the surprises in my conversation with Dr. Nicholas Leroy Ledra, a scientist and third-generation textile professional whose work is focused on one of those enormous problems hiding in plain sight. The world has gotten extraordinarily good at making sophisticated fabrics. We have clothing that stretches, wicks moisture, keeps us cool, keeps us warm, sheds water, feels soft, holds its shape, and survives all kinds of abuse. The trouble is that in learning how to combine cotton, polyester, spandex, dyes, coatings, and other materials into these marvelous fabrics, we created a new problem that we have historically been very bad at dealing with: super-durable, non-biodegradable waste.

The Problem Hiding in Our Closets

Some donated clothing certainly does find another owner, and that is a wonderful outcome. But there is a good deal of donated clothing that cannot be resold or re-given, and that all has to go somewhere. Nicholas actually has a particularly personal perspective on that practice, as his immigrant parents once gathered used clothing and sent it to relatives in South America, where those garments genuinely were useful and appreciated. 

Nicholas described visiting a facility where unwanted garments were compressed into enormous bales, some of which could then be shipped elsewhere—but today, the volume and economics of discarded textiles have changed. Sending enormous quantities of unwanted clothing somewhere else does not make the material disappear, and eventually, somebody, somewhere has to deal with what no one wants.

That is where Nicholas’s work begins.

Most modern clothing is not made of one neat, easily recoverable material. Look at the tag in the shirt you are wearing right now and you may find three or four different fibers. That complexity is part of what makes our clothing so useful, but it also makes conventional recycling remarkably difficult. Separating those fibers while preserving enough of their original quality to make them genuinely valuable again is an enormous scientific challenge.

Nicholas and his team are working on that challenge: they are developing technologies that can separate materials from blended, end-of-life textiles and recover them with enough purity and quality that they can re-enter the manufacturing system. And this is where the story gets much bigger than clothes.

Recycling May Not Mean What We Think It Means

One of the most useful things I learned from Nicholas was the difference between open-loop and closed-loop recycling.

Imagine a plastic water bottle that is collected and turned into polyester fiber for a jacket. That sounds terrific, and compared with immediately throwing the bottle away, it may certainly be an improvement. However, eventually that jacket wears out. If its blended materials cannot be recovered again, the bottle has really just made one additional stop on its journey to a landfill.

Nicholas describes that as an open loop.

A truly circular system aims for something more ambitious. Instead of merely converting an old object into one new object, we recover the underlying materials so they can return to the manufacturing stream again. Those materials can become yarn, fabric, or some other product, and potentially even something else after that. A T-shirt might become another garment, and then later, perhaps a pencil case. Eventually, perhaps a pillow—or even something we haven’t invented yet.

The important idea is not what each object becomes. It is that the valuable material inside it keeps serving us. Once you understand that distinction, you begin seeing the word “recycled” differently everywhere.

The Better Question Is: Where Does It End?

We are surrounded by environmental claims now: recyclable, recycled content, sustainable, biodegradable, renewable. Most of us are busy people with good intentions, so naturally we want simple shorthand that tells us we are making the better choice.

However, simply calling a process “recycling” tells us very little about the entire environmental equation. How much energy did it take? How much water? What chemicals were necessary? How far did the discarded material have to be shipped before it could be processed? What was the quality of what came out the other end? And most importantly,can that recovered material be useful again,or have we merely postponed the day when it becomes waste?

That is not an argument against recycling. It is an argument for better recycling — and for asking better questions. This kind of curiosity is what pushes us to find new and better ways of doing all sorts of things, including recycling.

I love this idea because it shifts us away from the exhausting notion that ordinary people must somehow become perfect consumers, memorize every environmental certification, and feel guilty whenever we get something wrong. Instead, our job can be much simpler: reward the people and companies who are thinking through the entire system.

Look for the innovators who are asking, “What happens next?” and give them your business, and you’ll begin to notice improvements much more quickly than before.

Grandma Already Understood the Idea

The sophisticated circular economy he is trying to help build began for Nicholas, in a way, beside his grandmother’s sewing machine.

When other children went to summer camp, Nicholas sometimes went to what he jokingly calls “grandma camp.” His grandmother sewed for people in her apartment building and community, working at an old Singer machine with the radio playing nearby. Nicholas remembers being fascinated by the colors and fabrics. He helped with buttons and gathered the scraps and trimmings—and Grandma did something important with those scraps.

She saved the useful ones.

Nicholas’ grandmother had learned to sew as part of a generation when girls were not necessarily encouraged to pursue much education. She found another way forward, taught herself a valuable skill, became an entrepreneur, and quietly practiced something we now give an impressive modern name: circularity. A leftover piece of fabric might become part of a dress for his sister, a handkerchief, or some other small thing. 

The way his grandmother worked taught Nicholas to notice waste.

His mother reinforced the lesson in a completely different way: she ran laundromats, where clothing was sometimes left behind and never asked after, and the family sometimes sent usable garments to relatives in South America. 

Years later, Nicholas studied chemistry and nanoparticles, worked jobs that did not necessarily look like steps toward his eventual purpose, and even worked with Eddie Bauer, where he gained an inside view of fibers, textiles, packaging, shipping, receiving, and the enormous system behind the clothes hanging on a rack. Only in retrospect does the path look connected, and I find that part of his story every bit as interesting as the recycling technology.

We sometimes imagine that the people who solve important problems knew exactly where they were heading when they started. However, more often, their lives look like ours: a grandmother, an unexpected job, a loss, a fascination, a skill learned almost accidentally, and problem noticed years before anyone realizes it matters.

Then one day those seemingly unrelated pieces meet.

What If Waste Became a Resource?

The most exciting possibility in Nicholas’s work is that recovered textile materials may someday be useful far beyond another shirt or pair of pants. There are actually recovered materials with enough purity that their potential applications could reach into areas including things like automobiles and batteries.

Think about the shift hidden inside that idea: a mountain of discarded clothing is ordinarily considered a liability. Somebody has to collect it, transport it, store it, export it, burn it, or bury it. But what happens if science turns that same mountain into feedstock? Now it is not simply garbage awaiting disposal. It contains cotton, polyester, and other materials that we would otherwise have to manufacture, grow, extract, or obtain somewhere else.

With the right science and innovation, waste becomes inventory—and that may be one of the most important conceptual shifts of the circular economy. Nature has been doing this forever: fallen leaves do not require a landfill. One organism’s leftovers become another organism’s resources. Materials move through systems. In the future, perhaps most of our best technologies will begin to work the same way.

And Here’s Where You Come In

Near the end of our conversation, I asked Nicholas what ordinary people could possibly do to help something this scientifically complicated to move forward. His answer surprised me, because it was not especially scientific:

Make connections.

Nuria Scientific sits in the middle of a much larger chain. There are people collecting clothing, manufacturers producing fibers and yarns, retailers selling garments all over. There are donation centers receiving old ones, companies processing plastics, researchers solving adjacent problems, investors funding scale, and countless other organizations that already possess pieces of the puzzle.

Nicholas needs those worlds to find one another—and you may actually be a more helpful link in that chain than you realize.

Maybe your sister works for a clothing company; your neighbor manages a donation center; your former college roommate works in plastics manufacturing. Somebody in your professional network almost certainly works in retail, textiles, materials science, packaging, investment, or supply chains. Talk to them about this issue; ask them about what their company is doing to contribute; ask questions about the way it’s done, and then perhaps point them to this episode, or to Nicholas’ work at Nuria Scientific.

We have seen this again and again at the Goodness Exchange: sometimes an innovation doesn’t need another cheering section nearly as much as it needs one unexpected introduction.

Solutions to enormous problems do exist. Scientists, engineers, entrepreneurs, researchers, farmers, teachers, doctors, inventors, and ordinary people all over the world are working on pieces of them right now. What they often lack is not possibility. It is connection.

So the next time you clean out your closet, by all means donate the good clothes—but perhaps pause over that polyester-cotton-spandex shirt for one extra moment.

Instead of asking only, “Where can I get rid of this?” ask:

What could this become next?

That is a very different question, and some remarkable people are already working on the answer.

• (Nicolas mentions finding) Dr. Lynda’s bio
• Nuria Scientific — Learn about Dr. Nicholas Leroy Ledra’s work developing new approaches to textile-to-textile recycling and find ways to connect with his team.
• U.S. GAO: Textile Recycling Technologies — A surprisingly accessible overview of why today’s blended textiles are so difficult to recycle and the technologies being developed to change that.
• U.S. EPA: Textiles — Material-Specific Data — See the numbers behind America’s textile waste stream and where discarded clothing and other textiles currently end up.
• PESCO-UP: Turning Cotton-Polyester Waste Back Into Raw Materials — Follow a major European research effort tackling the same stubborn problem of separating and recovering fibers from blended textiles.

• 0:00 — Intro & Welcome
• 5:32 — The Hidden Reality of Donating Clothes
• 8:30 — Why Modern Fabrics Are So Difficult to Recycle
• 12:50 — Break
• 15:06  — From Grandma’s Sewing Room to Textile Innovator
• 33:53  — Open-Loop vs. Closed-Loop Recycling
• 39:44  — Giving Old Clothes Multiple New Lives
• 44:47  — When Recycling Isn’t Actually Green
• 48:24  — The Future of Textile Recycling and How to Help