Project Sustainability Collective Podcast
Project Sustainability Collective Podcast
Hosted by Lili-Ann Kriegler and Bronwyn Cron
Welcome to the Project Sustainability Collective Podcast, where early childhood pedagogy and sustainability education come together, positioning ECEC educators as the critical leverage point for planetary change.
Hosts Lili-Ann, author and expert in early childhood pedagogy, play, and project-based learning, thinking skills, and leadership, and Bronwyn Cron, author and expert in STEM and sustainability education, bring together decades of combined expertise. They work together to explore how educators simultaneously shape child development and environmental futures, and regularly host sustainability and education thought leaders to enrich our listeners' podcast experience.
Our Approach:
Grounded in research with 200+ Australian ECEC services, we explore sustainability holistically across five interconnected domains: environmental, social, economic, cultural, and leadership/governance. Through our Sustainability Impact Accelerator framework, we help you recognise your significance, deepen your thinking, and expand your influence, accelerating change that ripples from your service outward to children, families, communities, and ultimately transforms policy and culture.
What We Explore:
Thought-provoking, evidence-based insights connecting brain development to environmental consciousness, practical frameworks like our Sustainability Discovery Framework, and approaches to embedding the EYLF 2.0 Sustainability Principle into everyday practice. We examine play-based learning, place-connected pedagogies, project development, team engagement, courageous planning, and how to integrate sustainability into your quality improvement plans.
Who This Is For:
Early childhood educators, educational leaders, directors, pedagogical leaders, sustainability coordinators, policy makers, and anyone who recognises that supporting optimal child development during the grounding years IS the most powerful sustainability education possible.
Our Promise:
We combine intellectual rigour with practical application, honouring your professionalism whilst providing frameworks and language that validate what you already know works. We help you see that you're not doing two separate jobs—child development and sustainability are the same work viewed from different angles.
You are architects of possibility, working at the intersection where human development and planetary futures meet.
Join us as we accelerate education for sustainability, positioning ECEC educators where you belong—at the centre of the conversation about planetary futures.
Acknowledgement of Country:
We respect the Traditional Owners and Custodians of the land of the Kulin Nation groups, the Boonwurrung and Bunurong people, where I live, learn, and work.
We also respect the people and cultures from across the globe who live and work for the optimistic future of this unique island continent, Australia. May we all walk gently into the future.
#ProjectSustainabilityCollective #EarlyChildhoodEducation #EducationForSustainability #ECEC #SustainabilityEducation #EarlyYears #ChildDevelopment #SystemsThinking #EarlyChildhoodLeadership #PlayBasedLearning #ProjectBasedLearning
Project Sustainability Collective Podcast
The Extinction of Experience - Why Nature Connection Matters for Sustainable Futures (Ep 2)
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Series: The First 2,000 Days: Building Brain Architecture and Sustainable Futures
This is the second episode of three: The Extinction of Experience - Why Nature Connection Matters for Sustainable Futures
Listen to our series exploring how child development and sustainability are the same story viewed from different angles.
In the last episode, we examined the extraordinary neuroscience of the grounding years. Today we explore a troubling pattern: the outdoor childhood is vanishing, and this compression is happening during the exact same critical window when children's brains are most malleable.
In this episode:
We reveal the stark statistics behind what environmental educator Robert Pyle calls "the extinction of experience" and why this self-perpetuating cycle threatens environmental futures. From sensory richness to loose parts play, we explore what children actually lose when they lose contact with nature—and it's far more than just fresh air and exercise.
We examine the concept of biophilia versus biophobia, and why the same critical window that matters for brain development also matters for nature connection. Through compelling research and Bronwyn's own childhood stories of camping in the Flinders Ranges, we discover why people protect what they love—and they love what they've experienced directly during this formative window.
We address what works and what doesn't, including the problem of premature abstraction and why teaching four-year-olds about melting ice caps can create anxiety rather than connection. Then we explore the alternative: a developmentally appropriate nature connection that builds love first, with knowledge following naturally.
Why This Matters:
With children spending 40 to 50 hours a week in early childhood settings, your outdoor space, your comfort with insects, and your willingness to let children get muddy are shaping whether children develop biophilia or biophobia during the window when their relationship with nature is forming.
The Message:
Every opportunity you provide for children to experience themselves as part of nature, not separate from it, plants seeds that may grow into environmental stewardship—and planetary regeneration—for decades to come.
Next Episode: The Catalyst Effect - Why Early Childhood Educators Hold the Key to Sustainable Futures
Connect with us:
- Project Sustainability Collective website www.projectsustainabilitycollective.com.au
- Early Years Sustainability Facebook Group
Thank you for listening. Please subscribe to this podcast so you can receive valuable insights and discussions in the future!
For more information about Lili-Ann Kriegler, go to:
Kriegler-Education
https://www.kriegler-education.com
+61438489032
Follow Lili-Ann
I respect the Traditional Owners and Custodians of the land of the Kulin Nation groups, the Boonwurrung and Bunurong people, where I live, learn, and work.
Lili-Ann Kriegler (B. A Hons, H. Dip. Ed, M.Ed.) is an award-winning author and Melbourne-based education consultant. Her books are 'The Power of Play' for educators and 'Roots and Wings' for parents. Lili-Ann’ is a leader in early childhood education (birth to years), leadership and optimising human thinking and cognition. She runs her consultancy, Kriegler-Education. She is passionate about the early childhood sector and believes in the transformational power of education.
Find out more at https://www.kriegler-education.com.
The Extinction of Experience - Why Nature Connection Matters for Sustainable Futures Transcript
Series: The First 2,000 Days: Building Brain Architecture and Sustainable Futures
LIL: Welcome back to the Project Sustainability Collective Podcast. This is the second episode in our series, The First 2000 Days, Building Brain Architecture and Sustainable Futures. I'm Lil.
BRON: And I'm Bron. And last time we explored the extraordinary neuroscience of the grounding years and how brain architecture is built during the first 2000 days through over 1 million neural connections forming every second.
LIL: Today, we're examining something that might surprise you about these same critical years. This episode is called The Extinction of Experience: Why Nature Connection Matters for Sustainable Futures.
BRON: We're going to explore how the exact same developmental window that matters so profoundly for human development also matters for something else entirely. Children's relationship with the natural world and their future capacity to care about the planet.
LIL: And we are starting with what I think is one of the most troubling statistics I've encountered in all our research. The outdoor childhood is vanishing, Bron, and the numbers are stark. 70% of Australian mothers played outdoors daily when they were children, but only 31% of their children have access to the outdoors. That's a massive shift in one generation. Between 1981 and 1997, children's free play time has decreased by 25%. We're talking about a drop from 15 hours a week to 11 hours, and sometimes less. Physical boundaries of children's independent mobility, ability to move around, has shrunk dramatically. Where previous generations might have actually roamed entire neighbourhoods freely, today's children often move only between home and car and their scheduled activities.
BRON: So we have this incredible compression of children's direct experience with the natural world, happening during the same developmental period as their brains are most malleable. This can't be a coincidence.
LIL: It's not a coincidence, and there's a term for what's happening, and I think it captures it perfectly.
BRON: Yes, the environmental educator Robert Pyle calls it the extinction of experience. As children spend less time in nature, they lose opportunities to develop direct, personal connections with the living world. And this experiential poverty breeds what Pyle calls a cycle of disaffection. Without direct experience in nature, people care little about its loss. This leads to even less contact with nature. What we're seeing is the self-perpetuating cycle where each generation has less contact with nature than the previous one, and therefore less motivation to protect what they've never experienced. It's particularly troubling when you consider that this compression is happening during the exact window when children's brains are developing rapidly.
LIL: So it's not just about missing out on fresh air and exercise. What are children actually losing when they lose their contact with nature?
BRON: Young children learn through their senses. They need to touch, taste, smell, hear, and see to build accurate internal models of how the world works. Nature provides unparalleled sensory-rich experiences and diversity. The texture of bark under small fingers, the smell of eucalyptus after rain, the sound of wind moving through leaves, the sight of ants working together. These direct sensory experiences are irreplaceable. They literally cannot be replicated virtually or explained through books or screens. When children lose access to this sensory richness, their sensory diet becomes impoverished. Instead of the complex, varied, unpredictable stimulation that nature provides, they're getting primarily visual and auditory input from screens and the controlled sensory environment of indoor spaces.
LIL: They're also losing access to what researchers call loose part play in nature, aren't they, Bron?
BRON: Absolutely. Simon Nicholson developed this theory back in 1972. Loose parts are materials that can be moved and carried, combined, redesigned, lined up, taken apart and put back together in multiple ways. And nature is absolutely full of them. Sticks can become tools, building materials, magic wands, swords, boats, or even dinosaur bones, depending entirely on a child's imagination and their current interest. The same stick might be five different things in a single play session, and this open-endedness stimulates creative thinking, problem-solving, and cognitive flexibility in ways that manufactured toys with predetermined functions simply cannot match.
LIL: And there's research showing that outdoor play in natural settings is actually different from indoor play.
BRON: That's right, Lil. Studies consistently find that outdoor play in natural or naturalistic settings tends to be longer in duration, more varied, more physically active, more socially complex, and more imaginative than indoor play. When childhood moves indoors, play becomes more structured, more supervised, and more constrained.
LIL: What Norwegian researcher Ingunn Fjørtoft calls the wildness that characterises healthy childhood development gets domesticated. Children are also losing connection to living systems. In nature, they encounter plants, insects, birds, all existing in complex, interdependent relationships. They're able to observe seasonal changes, life cycles, death and regeneration. They experience themselves as part of, not separate from, the natural world.
BRON: Now I want to talk about something that I think gets to the heart of why this matters so much for Sustainable Futures. It's this concept of biophilia versus biophobia. This is crucial for understanding what's at stake.
LIL: The biophilia hypothesis, developed by E.O. Wilson and Stephen Kellert, suggests that humans possess an innate, genetically-based affinity for the natural world. Children are born loving nature. You can see it in a toddler's delight in picking up natural materials like leaves and sticks, and in young children's fascination with insects in their instinctive attraction to water and growing things. Bron, I am so lucky. I have a grandchild who is about 15 months old. And when I take him to the park, it is phenomenal to see how this interest and this love just bursts into action. But this innate affinity that we see isn't automatic. While biophilia might be innate, it requires nurturing through regular positive experiences in nature to develop and to persist. Without these experiences, biophilia can actually transform into its opposite, biophobia, the fear or the discomfort, or even an aversion to natural elements and environments. Children who grow up with limited positive contact with nature don't just miss out on loving it. They can actually develop fear or discomfort around it.
BRON: And biophobia manifests in seeing nature as something dangerous or to be controlled, rather than something valuable to be preserved.
LIL: If children grow up uncomfortable with dirt, fearful of insects, anxious about weather changes, disconnected from seasonal rhythms, then as adults, they're unlikely to develop that deep motivation needed to protect natural systems.
BRON: Which brings us to timing, because the research shows that there's a critical window for developing this nature connection.
LIL: There is, and it aligns exactly with the same window we talked about in our last episode on brain development.
BRON: So research across multiple studies identifies early and middle childhood as the critical period for developing what researchers call nature connectedness. Many authorities believe that the window of opportunity to form bonds with and develop positive attitudes towards the natural environment opens during early and middle childhood and requires regular interaction with nearby nature. Now, this isn't just knowledge acquisition or traditional environmental education. It's about fundamental relationship development. It's not just about spending time in nature. It's about forming deep connections. The capacity to love nature, to feel connected to it, to experience oneself as part of rather than separate from the natural world. These develop during specific sensitive periods in childhood. And here's a sobering part. If children don't develop respect for nature in those first few years, it can be very, very difficult to develop those attitudes later.
LIL: And the long-term research backs this up.
BRON: It absolutely does. So longitudinal research consistently shows that childhood experiences with nature are among the strongest predictors of adult environmental attitudes and behaviours. This is confirmed when we work with groups of educators. Those who feel deeply connected to nature most invariably have stories of time spent in nature as children. Personal experiences with nature increase environmental concern, strengthen environmental identity, and predict pro-environmental actions in adulthood. I know that was my story. I spent a lot of time in nature. I was camping in the Flinders Ranges from the time I was six weeks old. So it was something that was always part of my childhood. There was always dirt, there was always fire, and there was also sticky marshmallow everywhere. It was my strongest childhood memories. Now we have decades of research confirming this pattern. Adults who take environmental action, who make sacrifices for environmental protection, who dedicate careers to environmental stewardship, almost invariably had significant direct experiences with nature during childhood. The motivation for environmental action isn't primarily intellectual. It's emotional and it's relational.
LIL: I'm absolutely loving this image of you, Bronwyn, with marshmallow around your mouth and a stick in your hand and mud on your clothes. I love that.
BRON: Maybe I'll share a picture.
LIL: I think you have to. But people like you protect what they love, and they love what they've experienced directly during that critical window when nature relationships form. So if current generations of children are experiencing unprecedented disconnection from nature during this critical window, what does that mean for our environmental futures?
BRON: It means we're potentially creating entire generations of adults who lack the fundamental emotional motivation to address sustainability challenges. And this isn't abstract where we're facing climate change, we're facing biodiversity loss and ecosystem degradation that will require not just policy changes and technical solutions, but millions of people who care enough to change how they live, vote, consume, and relate to the natural world.
LIL: And this brings us to why early childhood education and care settings are so critical for the story.
BRON: Because of where children are spending their time now. With children spending 40 to 50 hours a week in early childhood settings, and with outdoor play increasingly rare in home environments, early childhood education and care may represent what researcher Randy White called back in 2004, mankind's last opportunity to reconnect children with the natural world and create a future generation that values and preserves nature. Now that was 20 years ago and this trend has only intensified. For many children, their early childhood setting might be their primary contact with nature during these critical years. The early childhood outdoor space, the neighbourhood park that you visit regularly, the natural materials you bring inside your room. These experiences are quite literally shaping whether children develop biophilia or biophobia.
LIL: And your comfort with insects. Your enthusiasm for weather changes and seasonal observations. Your willingness as an educator to let children get muddy and wet. These attitudes are being absorbed by children during the window when their relationship with nature is forming.
BRON: So now let's talk about what nature play actually offers developmentally, because I think this connects back to everything we discussed about brain architecture and all of the other holistic development of children.
LIL: Yeah, it does. It connects beautifully. When a four-year-old crouches next to a puddle after the rain and watches water striders skate across the surface, she might extend her finger slowly, testing whether she can touch one without scaring it, but the insect darts away. She tries again, adjusting her approach, her speed and her movement. But for the next 20 minutes, she might experiment with different strategies utterly absorbed. I love water striders. I don't know about you, Bron. But what is happening developmentally during those 20 minutes? The child is developing motor control, hand-eye coordination. She's also building the foundation of scientific thinking. Because as she tries new things, she's forming hypotheses, testing them, revising her strategy based on what happened. She's developing sustained attention and focus. She's testing her frustration tolerance, and she's learning about cause and effect. She may build vocabulary as she describes what she observes, develops spatial reasoning as she judges distance and movement. She's practising patience and persistence. All of this from observing those water striders in the puddle.
BRON: And this is what we mean by embodied learning.
LIL: Yes, that's so true. Young children don't learn immediately through abstract instruction. They learn through their bodies. They learn through their senses, their movements, their emotions, their relationships. Cognition is embodied. It's grounded in physical and sensory experience.
BRON: When children manipulate natural objects, they're not just learning about those objects. They're building the neural foundations for abstract mathematical thinking. When they navigate uneven terrain or climb over logs and balance on stones, they're developing spatial reasoning that will later support geometry, map reading, and complex problem-solving. Natural environments invite this kind of integrated development in ways that flat, manufactured playgrounds don't. Research shows that children playing outdoors in naturalistic settings move more than children in manufactured playgrounds. They run faster, they jump further, they climb higher, and engage different muscle groups. The varied textures, temperatures, smells, sounds, and visual stimuli crucial for developing body awareness, balance, and coordination.
LIL: In one of the early learning centres that I've worked with, a very manufactured playground, mapped the movement of children. So they put out a transparency every day of the map, and then they recorded with dots where children gathered. Over a month, what they discovered was that the children always gravitated to where there was a small representative of nature. So they gathered near the trees, they gathered in the shade, they gathered near water, they gathered near the rocks and the stones. They never went predominantly into any of the supposedly well-designed modern areas of the playground. We've looked at some of the ways that the brain is being impacted, but what about social and emotional benefits, Bron?
BRON: So natural environments actually change how children interact with each other. So research has shown that outdoor play, particularly in natural settings, involves more cooperative play, more complex social scenarios, and longer play sequences than indoor play. You'll notice, I'm sure, that children get bored much more quickly and move on to another activity in indoor environments. So when children build a fort using found materials together, they must negotiate roles, they must share resources, solve problems collectively, and coordinate their efforts. These experiences develop collaboration, communication, conflict resolution, and perspective taking in really authentic ways. Not through planned social skills lessons, but emerging naturally from the activity itself. Nature also provides opportunities for appropriate risk taking and mastery experiences that are essential for developing competence and confidence. There's really strong evidence that time in nature supports emotional regulation as well.
LIL: And how so?
BRON: The natural environments tend to be quieter, less visually overstimulating and slower paced than indoor settings. These qualities help children regulate their arousal levels and develop capacity for calm focus. Australian research confirms that nature play positively affects children's well-being, including emotional health, stress reduction, and resilience.
LIL: So when we think about the holistic development of children, physical, cognitive, social, and emotional, nature provides integrated support across all those domains simultaneously. And this brings us to a critical point about development and practices in education, because there's a way to approach this that can actually work against what we are trying to achieve.
BRON: So, Lil, I think you're talking about what David Sobel calls premature abstraction.
LIL: Exactly. Premature abstraction is teaching children about global environmental problems before they have developed concrete connections with their own local natural world. For example, an educator may gather a group of four-year-olds to discuss climate change. She explains that polar bears are losing their homes because ice is melting. She may show them pictures of sad polar bears on shrinking ice floes, and she asks the children what they can do to help. The children look worried. It's been known that some children might cry. We're asking children to care about distant ecosystems before they love the puddles in their own back garden. We're presenting abstract global problems to children who still think with their senses in local areas and can only truly understand what they can see, touch and experience and have explained to them in their immediate context. The result isn't environmental awareness. It may even be anxiety or confusion.
BRON: They can develop heightened anxiety and fear of ecological disaster rather than a love of nature.
LIL: When children's first encounters with environmental concepts involve loss, destruction, dying animals, problems too big for them to solve, they learn that nature is a source of worry and sadness rather than joy and connection.
BRON: So what's the alternative? What does nature connection in early childhood look like that's positive and creating opportunities for joy and connection?
LIL: It follows what John Burroughs observed over a century ago, that knowledge without love will not stick. But if love and connection comes first, knowledge is sure to follow. For ages 2 to 4, children need unmediated sensory experiences with nature, touching different textures, observing movement and colour, listening to sounds, smelling flowers and herbs. No explanations necessary, just rich sensory contact. Adults support this by providing access, allowing a bit of mess, showing genuine enthusiasm and naming in a really unobtrusive way what children encounter. Ages four to seven is the critical period for developing empathy in general, but also with the natural world. Children at this age are building emotional relationships with the living things they encounter regularly. They need opportunities to see and witness, to care for plants and animals, to observe life cycles, to notice seasonal changes, and develop affection for specific places and creatures. The bee they see regularly in the garden, the tree they climb repeatedly, if they're allowed. The birds splashing in the birdbath, these become the foundation for caring about the broader natural world.
BRON: Local, positive, action-based, rather than global problem-focused and abstract is most definitely the way to go.
LIL: Environmental content at this age benefits from focusing on planting seeds and watching them grow, providing water for birds, creating habitats for insects, caring for worms in the compost bin. These are tangible ways children can contribute positively rather than feeling overwhelmed by problems they can't necessarily understand or solve. Access to sand, mud, yes, mud, water, natural materials, and pebbles all offer sensory and imaginative opportunities.
BRON: Now, I know many educators worry about not having extensive outdoor space or access to natural areas of bush, but there are plenty of things that you can do within the constraints of your setting.
LIL: This is really a crucial point. Because the belief that meaningful nature experiences require extensive space can prevent educators from acting.
BRON: The truth is, you don't need bushland to provide rich nature connection. You can incorporate natural elements into any outdoor space. Logs, large rocks, plantings, gardens, varied ground surfaces, water play with natural materials, and bringing nature inside matters too. Create nature tables where children can arrange and rearrange materials they find in your outdoor space. These might stimulate children's expression in drawing or painting, clay work or even ephemeral sculpture and collage. Any materials children take from nature to explore ought to be returned though, and things like growing herbs in pots that children can help water and tend. Aquariums or terrariums bring living systems indoors for daily observation and care. And protecting time for unstructured outdoor exploration. Daily time outdoors in all weather conditions appropriate to your climate. Regular visits to nearby natural areas, even if it's just the neighbourhood park.
LIL: Yeah, it's interesting you say all weathers Bron, 'cause I know in Scandinavia, they say that there's not inappropriate weather, there's only inappropriate clothing. So in a lot of the forest schools and bush kinders that I visited, the correct clothing for rain and cold are actually provided so that children are comfortable going out no matter what the weather is. And perhaps most importantly, what benefits is observing and documenting children's outdoor learning so that you can recognise the rich development that's occurring during what might be seen as just playing. This is really important to communicate, particularly with parents who might be worried that their children are just playing outdoors all day, that your observations in those areas like social development, emotional development, problem solving, and some of those thinking skills, if they can learn about that, they will trust that the children are really developing and growing when they are in the outdoors.
BRON: So as we think about wrapping up this exploration of nature connection, I want to come back to the bigger picture. Why does this matter so urgently for sustainable futures?
LIL: It's because as humanity, we are facing environmental challenges that require not just knowledge or policy changes, but fundamental shifts in how humans relate to the natural world. Addressing climate change, biodiversity loss, ecosystem degradation, these are not small challenges. They require millions of people who care enough about the natural world to make significant changes in how they live, how they consume, how they advocate, and how they contribute to making policy. And that level of care develops during childhood, or it doesn't. Research confirms this again and again. Adults who take environmental action, who make sacrifices for environmental protection, who dedicate their entire careers to environmental stewardship, they're almost invariably the ones who spend significant time in nature, like Bronwyn, as children. The motivation for environmental action isn't primarily intellectual. It is emotional and it is relational.
BRON: People protect what they love, and they love what they've experienced directly during the critical window when nature relationships form.
LIL: So when we provide rich nature experiences during the grounding years, we are not only supporting immediate general development, although that is crucial, we are planting the seeds for environmental futures. As mentioned in a previous episode, that beautiful River Red Gum Seedling develops deep roots during its first seasons so it can weather five centuries of changing conditions. Ensuring children develop strong nature connection during their grounding years prepares them to navigate the environmental uncertainty and challenges they'll face across their lifetimes. We can't be sure of this, but we can be sure that this kind of experience is going to contribute to it. The extinction of experience can be reversed, but only if we all act within this critical window during the grounding years when children's capacity to love and care about the natural world is still forming.
BRON: Every opportunity we provide for children to experience themselves as part of nature, not separate from it, plants seeds that may grow into environmental stewardship for decades to come.
LIL: And not only, Bron, for environmental stewardship and retaining what we have, but building the knowledge to actually begin to regenerate what has been lost over centuries to regenerate through agriculture, to regenerate through forestry, to regenerate through coastal care, to regenerate the ocean in ways that are actually going to change the way the planet survives. Next time, we'll explore how early childhood educators like you are uniquely positioned as the catalyst for this change, working at the extraordinary intersection where human development and sustainable futures meet during the most powerful developmental window.
BRON: Until then, we'd love to hear from you. What opportunities for nature connection exist in your setting? How might you increase them? You can connect with us through the Project Sustainability Collective website or share your reflections in the Early Years Sustainability Facebook group.
LIL: We've worked in the past 18 months, we've been working together with some incredible teams of educators doing amazing work with their students and with their parent body as well. So if you have something that's successful, something that you've implemented, something that you think is really working, we would love to hear about it and share it with our listeners.
BRON: Thanks for listening and we'll catch you next time on the Project Sustainability Collective podcast.
Thank you! Can you now please write the show notes for the Buzzsprout website, the LinkedIn and Facebook post and the intro for when we share the Post. Just as for Episode 1. Please always use Australian spelling, no emdashes and not the words foster, dig, dive or delve.