Produced for the European Commission by the European Service Network (ESN), Education for Climate Talks continues its exploration of how sustainability competences can shape meaningful green careers across Europe. In this episode, host Petra Moreno is joined by Jelle, associate professor of science education at Utrecht University, who reflects on his journey from biology into the broader field of sustainability education.
Jelle discusses how education systems and educators play a decisive role in preparing learners for green careers, highlighting the interplay between top down curriculum design and bottom up classroom practice. He explains why action oriented learning is one of the most effective ways to build environmental and citizenship competences, enabling students to connect knowledge with real world challenges and collective action.
The conversation also touches on Jelle’s involvement in the Horizon IM>PACT project, which develops tools to assess learning outcomes in sustainability education. Through this work, he illustrates how research, policy and practice can come together to support more coherent approaches to competence development.
Blending academic insight with practical experience, this episode provides an accessible look at how education can empower the next generation to live, learn and act sustainably.
Welcome to the Education for Climate Talks, the podcast
where we explore how education and green theory can drive climate action.
I am Petra and today we are focusing on green careers,
especially how professionals can bridge the gap between science
and public understanding.
Our guest, Sibille Diederichs, started out as a fashion designer in the 90s.
Just as fast fashion was taking off.
Concerned by the waste and pollution in the industry,
she became a pioneer in circular fashion long before the term existed.
She launched Joseffa Live Twice and later co-founded Seal Up in
Mechelen, Belgium, where she leads an international team and mentors
young professionals in sustainability, design and production.
In this episode, we'll explore
what it takes to build a multifaceted career.
The essential skills you need
and how young professionals can break into circular fashion.
Whether you're a student considering your career path,
a young professional looking to focus on sustainability, or an educator
helping others navigating green career options, this conversation will offer
practical insights
into turning your passion for the environment into meaningful work.
Thank you, Sibille, for
accepting our invitation.
So let's start.
Can you please share your personal journey
into sustainability and circular fashion?
Yes. Thank you also for, first of all,
for asking me, and interviewing me.
My journey, as you said, started in the 90s.
I have done a fashion
bachelor's degree, where I was lucky to have as well as
creative training,
a technical training.
And I worked
for many years, on the creative side.
Always
based on my technical
knowledge, which has always been
an asset in all my work.
I started out in the 90s with big fashion
companies back then, and,
in all my
projects and clients,
I was sensitive
to the problem of waste and the problem of sustainability.
Even when in the 90s, it was not such a big issue.
It was really
not a concern
for most people.
So, waste from production
was something that I saw and I thought, that's a lot of waste there.
And also, I had the chance to participate in a Congress,
an international congress on organic cotton,
in the beginning of the 2000s,
where really it was an eye opener,
about pollution in the fashion industry, which was totally unknown back then.
So then I really wanted to work in
sustainable projects, which was not easy for a freelance designer.
And I was so lucky again that
around 2014,
I had the chance to start my own brand.
And I focused,
I chose to focus on circularity,
because waste is really a problem
that concerns us all, whether we are
into organics or not.
Waste is a problem that we are all confronted with.
And so that's how I built up
my own brand, which is called Joseffa Live Twice
Interesting story.
You also have CiLab Collective, right?
What is it?
And, what are the main goals?
Yeah.
CiLab was founded by
one friend, a researcher for circularity
and myself and a repair artist.
And we were all,
the objective
for all of us was to create a place where circularity
is practically possible.
As from my point of view, I ran into a lot
of practical problems
from how industry and how
sourcing and how distribution is organised,
in a very, very linear way and very, very, optimised way.
But it's not very suitable for circular processes.
So, with the knowledge I gathered
from Joseffa, and with the knowledge from
Jan and
Clinton, back then
we founded CiLab in order
to provide a place where we can experiment
with circular processes in fashion
and provide a service for companies who have leftovers, for companies
who want to start up a repair system
for designers with circular ideas
and to build up knowledge about it
and to provide local production capacity.
So we work with people who come from
other countries who bring technical knowledge
to Belgium, technical experience or whom we train ourselves.
So, right now we are working with
one person from Afghanistan, one person from Syria, one person
from Pakistan and one person from Ukraine.
And it's a very wonderful team.
And, we have lots of very, very interesting projects
in which we can broaden circular knowledge,
offer coaching about circular understanding,
offer assistance in circular design,
in circular pattern cutting and circular production capacity.
That's amazing.
Basically do you work locally
still or internationally?, This is just a follow up
question, just for me and for the listeners to understand.
So if there is a fast fashion brand, you can provide them
with coaching for the waste they have, to give a second life to it?
For example?
Yes, what we do is we provide coaching
if wanted, training if you want it, and also services for reduction
or transformation of waste into something
that will fit into their
commercial circuit.
So we will not transform
waste of others and try to sell it off ourselves.
That's not our business.
We provide the service so that the brand
will be able also to test how their customers
react to a circular product.
See, they will provide their waste,
whether it is production defects or whether it's unsold goods
or collected goods from post-consumer.
And we will transform them into a product
which they can resell to their own customers.
Very interesting this project that you have!
And how do you think it contributes to shaping
green careers in this industry, in the fashion industry?
Well, we have, as I said, most clients who come in,
they have no experience with circularity.
They may have very interesting ideas, most of the time,
but it's their logistics system
and their working system that are not adapted to circular projects.
So we accompany them,
while we're working on their project,
we need to make a design which conforms to their idea.
So we work with the designers, but we also work
with the buying department.
So they get used to circular ways of working.
Then we also
work with the logistics department,
who also have to be sensitised to circularity.
We work with the marketing department because they also want to document
most of the time the projects that are
are being initiated and so on.
On the professional side,
we do a lot of sensitisation by working on the projects.
Gradually during the project, people understand how it works
On the other side, we do collaborations with fashion schools.
We do projects with the students.
Students come in for workshops on circularity.
We have a lot of interns who come in
for either just a week or for four weeks or for three months.
Depending on
the studies they are following,
and they are really immersed into circularity.
You do a great job.
I'm very interested in this theme.
What competencies and skills
do you think are essential in your work?
Particularly those aligned with the green career pathways
In order to set up a circular project or a circular career,
one needs the
the first asset that's absolutely necessary is an open mind
because we have to work in another way than how the system is.
So we have to find solutions all the time, all the time, all the time.
We have to find solutions.
And we cannot have a mind which says,
"OK this is not possible, then we don't do it".
That's not a green career state of mind.
Mindset.
So an open mind is really, according to me, that's the starting point.
And then,
what we notice
is that when we want to set up circular projects
as all departments or all states
of the production of a product are linked,
we need different departments to work together
closely, much closer than what we are used to.
The design department has absolutely to work with the production department
in order to create valid circular design.
Then the production department needs
to work absolutely closely
with logistics and sales and marketing.
They all need to be on the same wavelength
to make it happen.
And that's part of the open mind that I'm talking about.
But also I think,
polyvalence is very important in circularity.
So we cannot be specialised in one option,
like for example, pattern cutting.
We have to
have notions of design in order to be
a circular pattern cutter, in order to be a circular designer,
we have to have notions of pattern cutting
and of marketing and of sales.
And in order to work
on the marketing of circular
marketing projects, we have to understand what the technical challenges
were in order to really understand the value of the product we create.
So we really need to understand every step
of the life of the production
process, actually in order to work on circularity.
That's really what I think is most important
when we train people
to work or prepare people to work on circular projects.
Nowadays we are like
we live in a society that wants things very fast.
So having fast fashion for everyone
that doesn't have time, it's very nice
because you just have new collections every week.
And people just don't think they just buy,
I feel it's just the consumption
and the capitalism speaking per se, but then they don't see the other parts.
Most of the waste goes to Africa.
Correct me if I'm wrong.
And then you see the the ocean near Ghana
and Kenya full of wasted clothes of the big brands.
So, it goes to my next question.
What does it take to engage
people in reshaping the fashion industry?
We have to consume less.
I mean, we cannot continue to produce so much waste, but it's not,
a very sexy message to people.
Many people don't want to think about it.
And many people think, oh, it's
just one piece, and it's not me who will make the difference.
You know?
But what I find is not known to people
is that circular fashion has an incredible variety of styles
because actually, most circular pieces are unique pieces.
And so if we want a lot of variety
in our closet,
if we have all circular pieces, wow, it's
so incredible, unique and so there's such an incredible variation.
If people look at it in that way, people might get really fascinated
by circular fashion and would find fast fashion,
where every piece exists 200,000 times the same,
has no interest anymore.
Exactly. But then they can argue
that circular fashion would be more expensive than the fast fashion one.
So as you said, it's only me.
I cannot change the world.
So it's just one piece.
So I think people should see the facts
and what the waste is generating in our world.
That's true.
We don't,
when we buy, a garment,
we don't have to pay
for the waste that it will generate.
That might change.
Also, what might change is
the price of virgin resources.
I think in the long term
linear, fast fashion can only get more expensive
because resources will get more scarce
and will become more expensive.
And at a certain point,
circular processes will get more optimised
and circular production processes will become less expensive.
And so I think, I hope
prices will go down
for circular fashion and prices will go up for linear fashion.
At a certain point they will meet where then
the choices,
are more based on
what do I really like and not just what can I afford.
I hope we can reach that part.
There will be very good.
Also, you mentioned that you work with interns.
They go to you, they learn from you.
And, do you think that fashion and the education
sectors can learn from each other and support each other?
We can, of course, transmit what
is necessary in our eyes
to become or to to set up circular processes and circular fashion.
But then when we work with young people
from 15 to 25,
they have new ideas they have an interesting view on fashion.
They have
lots of
concerns for sustainability.
So they are very motivated
to take what we can
give them and transform it into something which will make the future.
So for us, it is extremely valuable to work with the young people and for them
we can give them our technical knowledge and, our experience.
So yeah, of course
we are always very happy to work with young people.
And we even would like to... we have even one school who
has started a circular program according to our inputs.
And we think it would be interesting to continue
that and to,
integrate circularity
into fashion programs, based on experience.
And maybe you can replicate that project if it goes well to other schools
so they can start shaping young people's minds
around this problem that is
fashion waste.
So we are coming to an end of our talk.
And if you were to give a
single piece of advice for young professionals,
who want to build a green career and be a positive change in our society,
what it would be?
You have to persist,
you will have to run a little bit
against the wind for a while, but just know that
we have already run against the wind for ten years.
So the biggest wind has already been taken.
We're going up in the lift of circularity and sustainability.
So don't hesitate to choose a green career.
You just have to be really
confident
that that's what makes sense.
And, in order to have something to cling onto,
I always think well, human society
has been based on circular circularity and sustainability
for thousands of generations.
And now in the 20th
and 21st century, we have two generations
who work really in a linear way.
And the world is full of waste,
and we need to do something about it.
And it's totally natural for human beings
to work on circularity and sustainability.
So yeah, just go for it!
Thank you so much, Sibille.
I will just summarize this talk as:
let's have hope and don't give up, right?
Yeah. Thank you Petra.
Thank you. It was very nice talking to you.
Thank you so much.