How China Brought 4 Million Hectares Back to Life | John D. Liu

What if humanity already knows how to restore the ecosystems we have degraded?

For more than three decades, filmmaker and ecologist John D. Liu has documented some of the world’s most ambitious efforts to bring damaged landscapes back to life. His work documenting the restoration of China’s Loess Plateau showed him something that would shape the rest of his life: large-scale ecological degradation is not necessarily irreversible.

So if restoration is possible, why aren’t we doing it everywhere?

In this conversation, John takes us from the Loess Plateau to the possibility of restoring the Sinai Peninsula. We explore how vegetation, soil, biodiversity and the water cycle interact, why degraded landscapes struggle to retain water, and what happens when ecological function becomes the starting point for how we manage land. But John’s argument goes much further than ecosystem restoration.

We discuss why our economic system often rewards extraction rather than ecological health, why GDP is such an incomplete measure of wealth, whether perennial polycultures and regenerative agriculture could reshape our food system, and what it would mean to organise human civilisation around restoring the living systems on which we depend.

John also reflects on ageing, responsibility, his friendship with Jane Goodall, the creation of the Ecosystem Restoration Communities movement, and his work as an Ecosystem Ambassador for Commonland.

At 73, after decades spent documenting both ecological destruction and extraordinary recovery, John remains convinced of something profoundly hopeful: Humans don’t have to be a destructive force on this planet. We can become a restorative one.

This episode was produced in partnership with Commonland, a global organisation working to enable large-scale landscape restoration through its holistic Four Returns approach.

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🎙️ JOHN D. LIU

John D. Liu is a filmmaker, ecologist and ecosystem restoration advocate whose documentaries have helped bring global attention to the potential of large-scale landscape restoration.

✨ COMMONLAND

Commonland works with communities around the world to restore degraded landscapes and create thriving futures for people and nature through its Four Returns approach.

https://commonland.com/

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The Deep Seed explores the people, ideas and solutions helping regenerate our food systems and ecosystems.

Through long-form conversations with farmers, scientists, entrepreneurs and leading thinkers, we explore regenerative agriculture, soil health, ecosystem restoration, biodiversity and how we can build a healthier relationship with the living world.

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