Iwi and hapū would continue to own the land and be able to access it. The forest would be permanent, perhaps reverting to native species.
The proposal was outlined by Sir Mark Solomon, who chaired the financially successful Te Rūnanga o Ngāi Tahu until 2016. He said Māori set it up in order to have their voice heard in this new climate change/carbon price/billion trees era.
The foundation was launched on September 17, and is touring 20 New Zealand centres to make its offer to Māori. It got good crowds in Kaitaia, Kaikohe and Wairoa. Whanganui was its seventh stop.
It has backers with "megabucks" to fund the scheme, Solomon. It will get expert advice from a New Zealand owned private business - New Zealand Carbon Farming.
The foundation has six directors, including managing director Jevan Goulter, who was in Whanganui in 2010, involved in a controversial Miss Wanganui competition and standing for mayor.
Asked what land would be suitable for the forestry deal, Solomon said in order to be part of the Emissions Trading Scheme (ETS) and get NZUs it must have been unforested in 1990.
The foundation was only interested in blocks of 40ha or more, and land that was otherwise unproductive would be best.
"Some will want to do it on good productive lands. Personally, I'm not a fan of that concept," he said.
Trees planted could be a mixture of natives and exotic species like pinus radiata. But exotics store carbon faster, and are cheaper to buy and plant.
"The money is in the exotics. If you have too high a mix of natives it becomes uneconomic."
He advocated planting natives along the waterways, and said the forest would improve water quality.
The NZUs - currently worth $25 each - would be sold to organisations needing to offset the carbon they emit by burning fossil fuels.
The foundation is willing to help iwi create nurseries to grow the trees, and pay them to keep pests down, plant trees and maintain access.
It has appointed Donna Awatere Huata as Māori Climate Commissioner. She's a former activist and Act MP who was jailed for fraud in 2005, and has since had many other public roles. She said global warming would hurt Māori more than other peoples.
She welcomed moves to lift the $25 price cap on NZUs, because it will force polluters to pay the true price of their polluting.
Dame Tariana Turia is the patron of the foundation's Māori Carbon Social Trust. She got involved to make the foundation more trusted, and also because the forests could earn money that will help her people.
"I want that investment to go into our whānau and hapū in things that will be really important for them. We don't want to be forever in poverty. We want a resource that we can determine how it will be used," she said.
The proposal is "the greatest opportunity we have been given," she said, and also probably the first scheme from Pākehā who are not looking to get something for themselves. One aspect was worrying her.
"I have worried myself sick about the notion of growing pine trees. If we are looking for an opportunity to take us into the future, we do what we have to do," she said.
Hone Harawira said the proposal has been examined by banks and policy people, and at Parliament on September 27.
"Not one of them has been able to find a flaw in this scheme."
MĀORI CARBON FOUNDATION
• is a company set up to provide Māori voice on climate change, carbon
• six directors: Sir Mark Solomon, Hone Harawira, Michelle Boag, Murray McCully, Maruhaeremuri Nihoniho, Jevan Goulter
• advised by private business New Zealand Carbon Farming
• Dame Tariana Turia patron of its Māori Carbon Social Trust
MĀORI CLIMATE COMMISSIONER
• Donna Awatere Huata
• appointed and paid by foundation
• but completely independent
FOREST SUITABLE FOR INCLUSION IN EMISSIONS TRADING SCHEME
• on land not forested in 1990
• forest for which iwi have not already received NZUs