All of our industries are going to have to shrink. But how do we shrink the good ones?

Martin Hensher is a health economist and  a Professor of Health Systems Sustainability at the University of Tasmania. He’s spent years researching how to create a degrowth model for the health industry—and why it will be better for people as well as our planet. Martin argues that the way we currently run our healthcare is another symptom of overconsumption, explaining when healthcare benefits and healthcare expenditure actually decouple.

This is a fascinating episode in which Martin interweaves the health of the planet’s body with our own, providing a vision for a sustainable, global healthcare industry which doesn’t depend on economic growth, inequality, or over-extraction. He explains we can save lives and prevent disease—but to stay within our planetary boundaries, we’re going to have to transform how we do that.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

Women’s bodies have always been the cornerstone of reproduction. So has Earth’s. It’s why the enclosure and appropriation of both is fundamental to the accumulation of the capitalist class.

On this extraordinary episode, I interview Marxist-feminist scholar, Silvia Federici, author of Caliban and the Witch, a phenomenal book which articulates how capitalism did not naturally evolve from feudalism, but necessitated the violent displacement of women’s power in their communities and control over their own reproduction. We discuss this in the context of women’s rights being violated all around the world today as we enter a period of resource scarcity, and why it is therefore imperative that the Western feminist movement recover this analysis to create an effective resistance movement.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

Ask anyone anywhere what’s the leading cause of global heating and they’ll tell you: fossil fuels. But what if we’re all wrong?

Gerard Wedderburn-Bisshop is a scientist for the World Preservation Foundation and worked as a Principal Scientist with Queensland Government Natural Resources, using satellite data to monitor three decades of vegetation cover and broadscale deforestation. In February 2025, he released a paper showing how the IPCC is using different models to calculate the emissions from fossil fuels and animal agriculture. Gerrard researches shows, when we use the same model for both, animal agriculture becomes the biggest driver of global heating.

In this episode, Gerard explains his research and other problems with emissions calculation, including how deforestation is disregarded and methane is misrepresented. He calls all of this inconsistent emissions accounting—and it could be leading policy-leaders astray.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

How do we survive?

Max Wilbert is a long-time activist who spent the past few years defending Thacker Pass, and recently joined CELDF to as part of their new strategy to build out community resilience. I first interviewed Max on why techno-optimism won’t save the day. As with many compatriots around the world, the answer he’s landed on as to what will is local action.

In this winding and weaving conversation we discuss the new bill on the floor of the New York State Senate which would give rights of nature to all water in the state before examining legal strategies more broadly under the umbrella of climate activism. We then examine Empire’s death throes and how it is violently grasping at power to maintain itself. We discuss violence and defence, patriarchy and permaculture, showing how resilience is an act of resistance in a system which has spent the past 500 years ripping apart our communal social fabric. This is a conversation about how to reweave a tapestry that had been lost to us, and why doing is of vital importance to survive what’s coming.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

What makes humans special?

Nothing. But a small band of us in the Western hemisphere have inculcated ourselves over thousands of years to believe in our supremacy over the natural world. Christine Webb, primatologist at Harvard University, argues this unique arrogance is at the root of our ecological crisis in her forthcoming book, The Arrogant Ape.

This is a fascinating conversation, with Christine revealing how almost all of the characteristics which we human beings have claimed distinguished ourselves from our kinfolk have eventually been found in other species. Perhaps most importantly, she explains how this culture of arrogance is learned by young children somewhere around the age of 4, who before that do not discriminate between humans and other species, meaning we could very swiftly learn to enjoy the kind of relationship with the more-than-human world that seems to come naturally to us. Although, of course, it would bring all of industrialised modernity tumbling down…

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

There’s more information than ever — but we can’t agree on what it means.

We think of language as a tool of communication. But it’s so much more than that. Language builds worlds and shapes realities; language is how we make sense of what we experience, and that sense-making is always done in partnership with each other. Language is the mechanism by which we develop shared understandings of reality. So why can’t we seem to find common ground with each other?

Damien Williams is an assistant professor of philosophy and data science, and he joins me to tackle that question, explaining we live in a world of “bespoke realities” whereby people’s lived experiences are seemingly so different they cannot even come to a mutual understanding of the parts that are objective — like science. He explains why other people’s realities feel threatening, and offers key insight as to how we can build bridges with those who disagree with us.

Damien and I only began to scratch the surface of this complex and critical topic. If you’d like to see this conversation continued as a roundtable with more interlocutors, please leave a comment below!

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Don’t Talk About Politics!

That’s the title of neuroscientist and political theorist Sarah Stein Lubrano’s first book. A phenomenal and heavily researched foray into why debate is a useless form of political communication, why citizens of the Western world are particularly prone to disbelieving their neighbour’s lived experience, and the strategies which do work when on the campaign trail, Don’t Talk About Politics explains why the very art of conversation is breaking down with our political systems—and what to do about it.

Sarah explains all this and more on the episode, explaining how our brains are atrophying along with our communities, the reason activists score happier than their peers on psychological tests, and how to begin growing the roots of a new political system on our very streets. We discuss her research in the context of the phenomenal community building and resistance movements I documented for Planet: Coordinate across Colombia and Ecuador, adding the lens of inter-relationality as a resource which remains much more available elsewhere.

I interviewed Sarah in 2023 when she was deep in research mode for the book so it was a pleasure to have her come back on and reveal her findings, strategies and own lived experience of how to talk about politics—successfully—in the 21st century.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.

The status quo won’t survive.

Neither will we if we’re not willing to change. In this phenomenal conversation with powerhouse Celine Semaan, an artist, author and cofounder of Slow Factory, we explore why change is understandably terrifying—and why it’s now or never that we do it.

In this wide-ranging and nuanced discussion we explore the big picture, colonialism, why systems are slow-moving, and the emotional load of confronting what’s happening. Celine reveals why most climate organisations are failing and how Slow Factory has set themselves apart by designing with risk at the centre. Slow Factory is a fascinating organisation which produces open source educational courses, information and comms for other NGOs in the space. We I discuss their agile model which has helped them break out in the climate space, and how they are now looking to transition to a more on-the-ground approach to community organising.

Planet: Critical investigates why the world is in crisis. Join subscribers from 186 countries to support independent journalism.