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Coastal restoration could be a crucial carbon sink

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Salt marsh rush and mangrove habitats

Salt marsh rush and mangrove habitats Photo: Supplied

Restoring coastal environments could turn them into effective carbon sinks, scientists say.

Two recent papers have looked at the prospect of restoring our coastal environments - places like mangrove forests, saltmarshes and seagrasses - to work as carbon sinks.

They say many coastal waterways are in a poor state from runoff, farming and urban development.

Research by NIWA marine ecologist Dr Phoebe Stewart Sinclair and colleagues found this country's coastal environment if restored, could take about 92,000 tonnes of carbon a year.

She talks to Kathryn about where the best potential for so-called 'blue carbon' is in the country.

Then Olya Albot, project manager at The Nature Conservancy, talks about the potential for a blue carbon market in this country.