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New Zealand produces food for three and a half times its own population — and still imports most of what it eats.

That paradox is the whole episode. We're self-sufficient in five of the seven major food groups: fruit, vegetables, meat, dairy, seafood. The two we fall short on are legumes, nuts and seeds, and starchy staples — wheat, rice, oats. The calorie backbone of the modern diet.

The reason is 150 years of optimisation. Pastoral farming occupies about 40% of New Zealand's land area; horticulture, the stuff that directly feeds people, occupies 1.5%. We grow what the world pays most for, and buy back what we actually live on.

So what would the isolation diet look like? Nobody starves. But you'd be eating a great deal of lamb, butter, potatoes and kiwifruit, and almost no bread.

At The End Of The World is hosted by Nic Roland and produced by Jamie Thomas. More at ateotw.com

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New Zealand will never run out of water. That's not the problem.

We get around 550 cubic kilometres of rainfall a year, one of the highest per-capita freshwater endowments on earth. The question is not whether the water exists — it's whether we can get it out of the ground, through the pipes, treated to a safe standard and into the tap. On that, we're far more dependent on the outside world than most people realise.

We follow the chain from source to tap: the treatment chemicals we make here and the ones we don't, the 73,000 kilometres of pipe built mid-century and now past its design life, and the honest engineering answer on how long a network lasts without replacement parts — a serious degradation curve beginning within two to five years.

Plus Christchurch, which drinks deep artesian groundwater so clean it needs no chemical treatment at all, and would still be running long after everywhere else started to struggle. And Moa Point in February, which showed us what a major wastewater plant failing looks like with no external shock at all.

At The End Of The World is hosted by Nic Roland and produced by Jamie Thomas. More at ateotw.com

Hey! I'd love to hear your thoughts, send me a voice note.

After the oil episode, some good news for once.

New Zealand sits on the boundary of two tectonic plates, and that violence has been generous with us: world-class gold, vast ironsand, rich geothermal fields, limestone, coal, and more aggregate than we could ever use. On construction materials, we are very close to self-sufficient. If the ships stopped, we could keep building.

The gaps are somewhere less obvious. Drawing on GNS Science's 2024 assessment — the most comprehensive survey of New Zealand's mineral potential ever published — we map what's under our feet against what a modern society actually consumes, and find the shortfall sitting squarely in the materials that advanced manufacturing depends on.

A geologically young, tectonically active country turns out to be unusually rich in some things and starkly empty in others.

Further reading: GNS Science, mineral potential of New Zealand (2024)

At The End Of The World is hosted by Nic Roland and produced by Jamie Thomas. More at ateotw.com