The demographic writing has been on the wall for a while now: New Zealand’s population is getting older, our fertility is declining, and young people are heading to where the opportunities are. Migration might be how the country’s population escapes stagnation but on its own it won’t magically repopulate every small town.
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The consequences are both stark and obvious: Fewer children mean smaller schools. Fewer workers make it harder to sustain businesses. Businesses and services disappear, making a place less attractive to the next generation of families. Before long, a town can find itself in a downward spiral that’s difficult to reverse. Call them ghost towns or zombie towns if you want but the idea is the same: places that are barely hanging on. Places where the lights are on but there’s not many people home. Beyond towns, the same phenomenon might be coming for some regions. Paul Spoonley, who has done more work than anyone to draw our attention to his slow motion population train wreck, has written often about the ‘hollowing out’ of the regions. A trend brought about by the combination of an ageing population, workforce shortages and the diƯiculty of sustaining services.
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Of course, some places will thrive. Some of these provincial towns will find new purposes, new industries, and new residents. Others may discover that being a good place to retire is a perfectly respectable future. But plenty won’t and wishful thinking will not be much help in the face of our demographic gravity.
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The inconvenient truth we face is that not every community in New Zealand will be sustained in its current form. The settlement patterns we are used to are not permanent features of the landscape.
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Clearly these are diƯicult conversations to have. Suggesting that a community (with its attendant history and identity) might have no viable long-term future is politically awkward and personally confronting. It requires us to ask what makes a community viable, what we can realistically sustain, and where investment has the best chance of creating lasting opportunity.
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But avoiding this conversation doesn't make the problem go away.
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Which is where the parallel with climate change is useful. With coastal retreat, we're beginning to recognise that the sensible response isn't necessarily to defend every property at any cost.

It's to understand the risks, examine the alternatives and make diƯicult decisions before circumstances make them for us.
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So why wouldn't we apply the same thinking to demographic change?