Dunedin bar owner surrenders liquor licences after drunk person locked in

Source: Radio New Zealand

The Dunedin bar DropKicks on Great King Street. RNZ / Tess Brunton

A Dunedin bar owner has surrendered liquor licences for two venues after a drunk patron was locked in at the end of the night.

The 3 April lock-in at DropKicks on Great King Street led to a district licensing committee hearing to determine if operator Femme Enterprises Limited, which was owned by Rebecca Ellis, was fit to hold a liquor licence.

The business had been granted a temporary authority to sell alcohol in February.

A committee report said the patron, who was in a toilet stall, was locked in after staff failed to properly check the venue before they left.

The person was found “extremely intoxicated” and taken to hospital after they called friends for help, who alerted police.

At the start of the hearing on 5 May, Ellis voluntarily gave up temporary authority for DropKicks and another bar Errick’s on Crawford Street.

A meeting minute released on Monday showed the committee paused proceedings to explain that new operators could still get temporary authorities, giving Ellis a chance to reconsider her decision, but she said it was the “right thing to do”.

In a post on social media last week, DropKicks apologised to customers and people who had upcoming bookings.

“Thanks to everyone who has come and enjoyed DropKicks as much as we do,” the post said.

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Internet outage hits Auckland suburbs

Source: Radio New Zealand

The Chorus website showed outages in several South Auckland suburbs. Chorus / screenshot

An estimated 2500 homes and businesses in South Auckland are affected by an internet outage.

Chorus said it had identified damaged copper and fibre cables impacting about 600 copper voice and broadband customers, and 1900 fibre broadband customers.

The company’s outage map shows suburbs in the western part of South Auckland are most affected, including Karaka, Waiuku and the Āwhitu Peninsula.

Details on the outage map shows many of the outages were reported just before 1am on Monday.

“We’re aware of a network outage currently impacting customers in South Auckland and are working urgently to restore services as quickly as possible.

“We apologise for the disruption, we know how important connectivity is for homes and businesses and appreciate customers’ patience while we work through the issue,” said a Chorus spokesperson in statement.

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Wellington bar Red Square to close after ’23 legendary years’

Source: Radio New Zealand

File photo. Unsplash / Lucas Santos

Long time Wellington bar, Red Square, has announced it will be closing at the end of this month.

“As with everything, all good things must come to an end,” the bar wrote on social media.

“Over and incredible 23 years, Red Square has been a huge part of Wellington’s nightlife.”

The bar thanked every person who had walked through its doors, especially thanking loyal regulars and past and present staff.

The bar’s last day will be 30 May, where the public was invited to party one last time at Red Square.

“Here’s to 23 legendary years of Red Square.”

The announcement was flooded with nostalgic comments from the public, calling it the end of an era.

One commentor wrote, “Can’t believe we met here 13 years ago now with two kids.”

Another said, “I dropped my eftpos card in there back in 2006. Good times!”

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What exactly is the hantavirus outbreak and how worried should we be?

Source: Radio New Zealand

A passenger from the Dutch flagged hantavirus-stricken cruise ship MV Hondius waves aboard a military bus after being transferred by boat to the industrial port of Granadilla de Abona on the island of Tenerife in Spain’s Canary Islands on 10 May 2026. JORGE GUERRERO / AFP

Explainer – The internet is filling with panic about hantavirus, but is it really as dangerous as Covid-19? Here’s what we know so far.

Three deaths and several infections on a cruise ship off South America has raised alarms for many, in a world where some are still mentally and physically recovering from the Covid-19 pandemic.

“This is not going to be another coronavirus pandemic, from all we know about this agent,” said epidemiologist Michael Baker – a man who knows his pandemics and was one of New Zealand’s most prominent experts during Covid-19.

“This is not another Covid,” World Health Organisation Director-General Dr Tedros Adhanom Ghebreyesus has also said. “The current public health risk from hantavirus remains low.”

US passengers from the Dutch flagged hantavirus-stricken cruise ship MV Hondius are transferred by boat to the industrial port of Granadilla de Abona on the island of Tenerife in Spain’s Canary Islands on 10 May, 2026. AFP

What’s happening with this outbreak? Could it come to New Zealand?

Three people have died and at least six others appear to be infected after an outbreak of hantavirus on the cruise ship MV Hondius, which was travelling around South America last month.

Passengers on the cruise ship have been evacuated in the Canary Islands. One New Zealander has been confirmed to be among them.

That person will eventually return home.

The Ministry of Foreign Affairs and Trade confirmed that “we are providing consular assistance to a New Zealander on board the MV Hondius. This will include repatriation assistance.”

MFAT indicated no further information on the New Zealander would be provided for privacy reasons.

“We currently have no reason to believe that any New Zealanders have contracted hantavirus,” said Dr Richard Jaine, deputy director of public health for the Ministry of Health.

“However, it is important that we respond appropriately and take all possible steps to manage any potential risk to individuals or the public.”

The person may likely face precautions on their return to New Zealand.

“Depending on the risk it is possible this may also include a period of quarantine for any exposed individual on their return to New Zealand.”

What is a hantavirus?

Hantavirus is typically spread by the inhalation of contaminated rodent droppings.

This particular strain, the Andes virus, is endemic to Argentina, and is the only strain of hantavirus that has been known to have human to human transmission – typically through very close contact such as sharing a bed or food.

Its symptoms typically include fever, headache, muscle aches and gastrointestinal symptoms.

Hantavirus cardiopulmonary syndrome (HCPS), a severe respiratory illness that can develop, has a case fatality rate up to 50 percent. It’s the same thing that killed Betsy Arakawa, the wife of the late actor Gene Hackman, last year.

Dr Michael Baker Supplied / Department of Public Health

“The (hantavirus) in the Americas are particularly dangerous because they have a fatality rate of about 40 percent,” Baker told RNZ Afternoons. “They’re very unpleasant infections if you get them.”

No vaccines or specific treatments exist for hantavirus, but quick hospital care can often prevent symptoms turning deadly.

Hantaviruses are found in small mammals such as rats, mice, voles, shrews and lemmings, but no New Zealand rodents carry these viruses, University of Auckland associate professor of infectious diseases Dr Mark Thomas said.

“The only way a New Zealand resident could become unwell with a hantavirus infection would be as the result of travel to a country where the virus is present.”

WHO has said the investigations so far suggest possible exposure to rodents during bird watching activities.

“A Dutch couple, who unfortunately have now died, probably got infected in Argentina, and the other thing that was very bad luck was that the Andean species of this hantavirus is the only one that has occasionally caused person to person transmission,” Baker said.

The virus comes from infected rodents. 123RF

How is it transmitted?

Hantavirus is contracted from direct contact with urine, droppings or saliva of infected rodents, or rarely through rodent bites.

But the Andes variant has shown some ability to move between humans in certain conditions.

“Andes virus has demonstrated limited human-to-human transmission in previous outbreaks, typically occurring among close contacts and within household settings, generally requiring prolonged close exposure,” WHO’s database states.

However, Covid-19 is a far more efficient airborne respiratory virus that spreads much easier than hantavirus does.

Human-to-human transmission of hantavirus is rare and requires prolonged and direct exposure to a case, Jaine said.

“This isn’t like the flu or Covid-19.”

Cruise ships have often been incubators for diseases and outbreaks.

Baker said the combination of the Andes hantavirus and cramped quarters on board a ship have made for a “really bad sequence of events”.

“The ship environment presents an increased risk due to close living quarters, shared indoor spaces, prolonged exposure, and frequent interpersonal interactions, all of which may facilitate transmission,” WHO wrote.

Health authorities in several countries have also been tracking passengers who had already disembarked and anyone who may have come into contact with them.

The lengthy incubation time of the virus – as long as eight weeks – could also complicate efforts to contain the disease.

So is this really going to be Covid-19 part 2?

The general consensus for now is that while it’s worrying and health authorities are paying close attention, this isn’t the same kind of quick-spreading disease Covid was.

“It has all those echoes from a very tough period in our history,” Back said, with an infection that’s come from an animal to humans. But it’s not the same kind of illness.

“It’s very different. They’re usually very hard to catch. There are several hundred cases a year but they are linked to rodents.”

The images of masked medical workers and return of contract tracing is bringing back memories of the pandemic for many people. “Covid PTSD” is a real thing, with people anxious about a return to lockdowns and cracking dad jokes on social media about stocking up on toilet paper.

Is there any danger of it turning into a global pandemic?

So far, the advice is not to panic.

“This is not the start of an epidemic. This is not the start of a pandemic,” Dr Maria Van Kerkhove, director of WHO’s Department of Epidemic and Pandemic Management, said at a press conference.

“I think it’s very important that listeners are not overly concerned about this particular outbreak … It is being very well managed,” Baker said.

Viruses do mutate, so health authorities are taking the hantavirus situation very seriously, Baker said.

“They’ll certainly be looking at it to see if it has changed in any way.”

For the passengers on the ship, “precautions being taken are very intense,” he said.

“Anyone being evacuated is going to be treated as if they are quite infectious.”

WHO’s emergency alert and response director Abdi Rahman Mahamud told AFP he believed any further spread would be “a limited outbreak” if “public health measures are implemented and solidarity shown across all countries.”

WHO has said it advises against implementing any travel or trade restrictions based on current information about the hantavirus.

The majority of the approximately 150 passengers and crew on board the cruise ship appear not to have contracted the virus.

“If it was highly infectious it wouldn’t just be maybe half a dozen people infected on this ship,” Baker said.

“You’d see a high proportion of people on board showing some evidence of infection.”

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Wellington Electricity says power bills could rise for customers to keep lines reliable

Source: Radio New Zealand

123RF

Wellington Electricity says it likely needs to eke out another $10 to $20 a month from customers to keep the power lines reliable.

That would be over and above approved increases by the regulatory each April through to 2030.

Christchurch lines company Orion was also writing to the Commerce Commission to increase would it could charge to maintain its network in the face of high growth in the region

Wellington Electricity chief executive Greg Skelton told Nine to Noon the company’s modelling showed it likely needed to charge customers an extra $10 to $20 a month to avoid a steep increase in the future and to keep the network reliable.

He said the company needed enough funding to keep an ageing network performing to deal with demand as households and businesses moved off gas.

“What we’re looking at is making sure we’ve got enough funding to keep maintaining the network as it ages and goes through,” Skelton said.

“There’s also funding we’re looking at to start to develop systems and capability and resources inside our business to look at the new future of electric vehicles coming on and being managed, looking at how solar needs to be managed.

“There’s legislation that we have to comply with from today around solar injecting larger amounts of energy into the network, and there’s also trying to manage the exit of gas and the 65,000 customers using gas at the moment, which is largely doing most of our heavy lifting.”

Once they electrify, they they had to build a network that was capable of managing that, he said.

He said they had already run out of maintenance allowances, and were having to spend above what they were allowed to keep the lights on and maintain assets.

Skelton said their modelling showed the number of the current age of performance and failure rates of assets was large – about $1.2 billion.

“Now, we wouldn’t be able to do that in five years. That’s a programme of work that has to happen over more than a decade,” he said.

“When we look at what we need to do in five years, we’re scaling that back from what would be $33 a month down to something that’s between $10 and $20 a month.”

The extra charges would likely come in from 2028, he said.

“We would probably have that smoothed by the commission, so it didn’t end up with a conflict of doubling the charges that customers are currently seeing,” Skelton said.

“It would be smoothed into the five years, probably starting from 1 April 2028.”

Skelton said the investment would help future-proof and optimise the electricity system, with the rise of solar.

He said sister companies in Australia and the UK had already gone through the processes, which was only starting to be introduced here.

“We can see the systems they’re providing; we can see how they’re starting to manage or orchestrate solar coming in, we’re seeing how they’re able to manage and push away electric vehicles into cheaper pricing periods,” Skelton said.

“Some of that’s on us getting our price signals right, and getting those passed through to customers so they then have choices of avoiding or choice of saying ‘we do want to operate in this period where it’s congested’ and therefore that’s a signal to us to say ‘yep, we do need to go and invest in higher capacity of that part of our network.'”

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Corrections staff turn to food banks as fuel crisis takes toll

Source: Radio New Zealand

Corrections staff are struggling with the higher cost of fuel. (File photo) RNZ / Blessen Tom

Corrections staff are turning to food banks as the fuel crisis takes its toll, the Corrections union says.

While some prisons, such as Auckland’s Mt Eden, were located close to a main centre, many prisons including Wellington’s Rimutaka Prison, Christchurch Men’s and Waikeria were further away from where staff lived.

The Corrections Association had written to department management with suggestions that would help staff, including a travel subsidy, a van pickup system to collect staff for work and allowing non-custodial staff to work from home.

The association’s president Floyd du Plessis, told Nine to Noon, the average commute for workers was 45 minutes, but some were travelling up to two-and-a-half hours for work.

“Just like everyone else out there, they’re really struggling, everything’s tight, the fuel crisis has made it worse.”

Prisons weren’t often built near areas where people lived and worked, he said, and even with Auckland’s Mt Eden, with the pay staff received most could not afford to live anywhere close to the area.

Auckland’s Mt Eden Prison. (File photo) RNZ/Calvin Samuel

Public transport was usually not an option, du Plessis said, as there wasn’t usually public transport nearby and if there was shift work made this not possible.

“We have a serious situation where staff are underpaid comparative to a lot of other areas and a large percentage of staff are absolutely reliant on overtime to make ends meet.

“Staff are struggling and unable to pay fuel bills.”

There had been examples of staff needing to stand in queues at food banks recently, du Plessis said, to feed their families.

Some staff were also taking annual leave of avoiding work so they did not have to pay high fuel bills.

Many prison workers did not need to be in the office everyday, du Plessis said, especially if they worked in an administration role.

He said they had also put forward suggestions to Corrections which included putting on vans for groups of staff who could travel together as many were coming from the same area, or to look at a regional allowance in terms of distance.

“We’ve seen the support for social workers and teachers with initiative like that.”

Initially, du Plessis said Corrections had said it wanted to wait and see what the government did. But since then it had reached out to have a conversation with the union.

The union had started trying to ease the stress for workers by pausing union fees for members for eight weeks, du Plessis said.

Corrections said it was prepared to work with staff and would be meeting with the union.

A spokesperson for Corrections, Alex Povey, told Nine to Noon in a statement, Corrections was working closely with the wider public service to ensure it remained aligned to the government’s fuel response plan.

Povey he had been in touch with the union in late April to organise a meeting to hear member’s concerns and explore any ideas that could be considered.

He said Corrections was committed to ongoing dialogue.

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Pacific Edge aims to raise up to $24 million more after loss of US insurer

Source: Radio New Zealand

Pacific Edge’s revenue dropped to $11.5 million from $21.8 million the year earlier, reflecting the Medicare cut. Supplied / Pacific Edge

Cancer diagnostics company Pacific Edge is aiming to raise up to another $24 million as it continues to battle to regain Medicare coverage in the United States, get reimbursement for its tests, and position the business for growth.

The company’s battle was reflected in its financial results for the year ended March, with a bigger net loss of $35.7m compared with a $29.9m loss last year.

Revenue dropped to $11.5m from $21.8m the year earlier, reflecting the Medicare cut, with testing at US labs falling to 18,784 tests from 23,885 tests the year earlier.

The case for more capital

“The new capital we are seeking today will … support the Company and its operations to regain Medicare coverage and assist our move towards the broader adoption of our tests by commercial payers in the US and further afield,” chair Simon Flood said, adding the company had already made progress.

“Backed by robust clinical evidence, the endorsement of our tests in clinical guidelines, and growing momentum in clinical opinion, we have firmly established ourselves as the first mover and market leader in bladder cancer diagnostics.

“We are determined not to lose that momentum. All of Pacific Edge’s Directors intend to take part in the equity raising. We encourage you to support this offer.”

Second round of funding

The company raised $20m and cut costs last year to help it gather scientific evidence to convince Medicare authorities to reinstate coverage, as well as get payment coverage for its tests.

The latest equity offer consisted of a placement of $18m new ordinary shares to eligible investors at 17 cents per share and an offer of $6m new shares to retail investors with an ability to accept over subscriptions.

The case for support

Pacific Edge expected Medicare administrative contractor Novitas to release a draft documentation to support the reinstatement of Medicare approval before September 2026.

Pacific Edge chief executive Dr Peter Meintjes said reimbursement would assist with increasing revenue and reducing average monthly cash burn below the current target of $2.5 million per month for FY 27.

“The capital we are seeking today will set a clear path to reimbursement for our tests … support continued investment in our clinical evidence and invest in product innovation,” he said.

“We are excited by the growth we see ahead, and we encourage shareholders to support us to take advantage of these opportunities.”

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Dave Rennie’s Japan season extended as Kobe Steelers book top spot

Source: Radio New Zealand

Kobe Steelers coach Dave Rennie (L) and Ardie Savea. www.photosport.nz

Incoming All Blacks coach Rennie and his star flanker Ardie Savea have steered Kobe Steelers to the top seeding in Japan Rugby League One’s knockout stage.

The Steelers clinched victory in a key final match of the 18-round regular season, winning 24-19 away to arch rivals the Kubota Spears.

The win leaves Kobe top and the Saitama Wild Knights second, handing them a bye through the first round of the play-offs while the third-ranked Spears must play an elimination final.

The outcome also increases the likelihood of a short preparation time for Rennie when he takes charge of the All Blacks for the first time ahead of their first test of 2026 – a Nations Championship fixture against France in Christchurch on 4 July.

Kobe are guaranteed to be involved in either the Japanese final on 7 June, or the third-place match a day earlier.

The All Blacks will have less than a month with Rennie, along with attack coach Mike Blair, the Scotsman who works under Rennie at Kobe and has been included in the new-look New Zealand coaching staff.

Savea – who is a contender to be named All Blacks captain – will also have little time on the ground before probably being called into Test duty.

Despite missing the Super Rugby Pacific season, Savea and Kobe team-mate Anton Lienert-Brown are both in contention for All Blacks selection under clauses in their Japan sabbatical contracts.

Kobe produced a strong finish to the season to claim top spot, with co-captain Brodie Retallick enjoying a standout campaign.

Brodie Retallick scores a try during the rugby Test match between Japan and the All Blacks in Tokyo on 29 October, 2022. AFP / Philip Fong

In a remarkable feat, former All Blacks lock centurion Retallick topped the try-scoring list for all teams with 17 – leaving him one short of the competition season record.

There is a two-week break before the two Japan elimination finals are played.

The first match will pit fourth-placed Tokyo Sungoliath against the fifth ranked Black Rams Tokyo.

The teams’ respective captains are long-time All Blacks team-mates and test centurions Sam Cane and TJ Perenara.

The defending champion Brave Lupus Tokyo – coached by Todd Blackadder and featuring All Blacks first-five Richie Mo’unga – snuck into the knockout stage in sixth.

Their elimination final against the Kubota Spears – a rematch of last year’s final – could be the last in Japan for the 31-year-old Mo’unga, who was New Zealand’s first-choice playmaker at the last two World Cups.

Richie Mo’unga playing for Toshiba Brave Lupus, 2025. AFLO SPORT / PHOTOSPORT

His first two seasons of a three-year contract brought successive titles for the Brave Lupus.

Under New Zealand Rugby stipulations, Mo’unga is ineligible for the All Blacks’ opening Nations Championship tests on home soil, along with the four-test Greatest Rivarly tour of South Africa.

Meanwhile, the season is over for ninth-placed Toyota Verblitz, who have a strong Kiwi connection.

Steve Hansen is the club’s director of rugby while fellow-former All Blacks coach Ian Foster is head coach and former All Blacks Aaron Smith and Mark Tele’a are in their playing ranks.

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West Auckland foodbank demand at highest ever levels

Source: Radio New Zealand

A West Auckland foodbank is giving out more than 200 food parcels a month. File picture. RNZ / Simon Rogers

A West Auckland foodbank says demand for its services has reached its highest-ever levels.

Waitakere Community Outreach foodbank coordinator Victor Davies, who has been running food banks for 26 years, told Morning Report the organisation has never been busier than it is now.

“When I first started, people were asking for food parcels, approximately 10 times a week. Now the number has gone up to 50 a week. We’re doing over 200 a month.

“I call them the working poor. You’ve got two people working, and they still can’t make ends meet. And a lot of people out there really are on struggle street,” he said.

Davies said food was the first thing to go when bills needed to be paid.

“It is the exorbitant rent that people pay. And don’t forget, they have to pay the rent, their electricity, everything else on top of that. And so to me, the last thing on the list is food.”

He said one home he delivers food to has two large families living together under one roof, just to pay the bills.

Ministry of Health figures from November 2025 revealed one in five children live in a household where food runs out.

Those numbers were higher in the Pacific community, where 44.3 percent lived in households where food ran out often or sometimes. That figure was 32.3 percent for Māori children.

This compares to 18.3 percent of children who responded to the survey as European or other, and 13.2 percent for Asian children.

Davies said the cost of living was also resulting in people no longer being able to pay their rent.

“People can’t afford rent, they get evicted. They’ve got to look for something else. They’re actually couch surfing, so they move from one accommodation to the other,” Davies said.

“I don’t think, quite honestly, there is an answer to this. I really don’t.

“We’ve created a society now with a very big divide, a big ravine where you’ve got the very wealthy at the top, you’ve got the bottom. We’ve created a poor, working class society, even though you’re working. And some people are working two or three jobs just to make ends meet.

“I don’t know where people would be if we didn’t have food banks. I really don’t,” Davies said.

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Using Hawke’s Bay’s rivers to unlock the mysteries of marine carbon storage

Source: Radio New Zealand

Marine biogeochemist Cliff Law is leading Earth Sciences New Zealand’s five-year research project into naturally-occurring marine carbon dioxide removal. ESNZ / Karl Safi

Major research to test whether lowering the ocean’s acidity could help to fight climate change will get underway in Hawke’s Bay on Tuesday.

Over the next three weeks, New Zealand and Canadian researchers will use a small fleet of boats and watercraft to sample and map the chemistry of coastal waters in the region, especially around river mouths.

The voyage is part of a five-year, $11 million Endeavour Fund project, led by Earth Sciences New Zealand (ESNZ), to research the potential of several marine carbon dioxide removal (mCDR) techniques.

The ocean is already a massive natural carbon sink, but mCDR aims to draw extra carbon dioxide out of the rapidly warming atmosphere and lock more of it away in the deep ocean.

It has therefore attracted growing interest over the last decade or so, but many of the techniques – which involve adding things to the ocean to stimulate carbon removal – are only at a theoretical or lab testing stage.

ESNZ marine biogeochemist Cliff Law said that was partly because of how difficult it was to prove that any of them worked.

“When things spread in the ocean, it’s very difficult to actually have instruments in place to monitor it, because obviously the ocean’s a big wide place and it disperses quite randomly.”

There are also concerns about what effects marine carbon dioxide removal might have on the marine environment, which have driven a growing body of international law to restrict how the techniques are researched and deployed.

RNZ reported earlier this year on the international start-up Gigablue, which has attracted scepticism from some marine science experts over plans to carry out its own type of mCDR in New Zealand waters.

Instead of deliberately deploying any mCDR techniques, the ESNZ research would instead study their naturally-occurring equivalents, Law said.

Hawke’s Bay was the proving ground for the first of three processes, called ocean alkalinity.

“Alkalinity has been going into the oceans for millions and millions of years through things like rivers and from sediments,” he said.

“It provides a natural mechanism by which it offsets the acidity of the water. So in other words, it raises the pH and it absorbs the carbon dioxide, and it converts that into a dissolved form, which is no longer carbon dioxide, so it can’t be exchanged with the atmosphere.”

Sediments plumes from floodwaters after Cyclone Gabrielle flow from rivers into the ocean in Hawke’s Bay in 2023 Copernicus Sentinel data

Rather than deliberately adding alkalinity to the ocean, the team would test how much carbon dioxide was being taken up as a result of Hawke’s Bay’s many rivers disgorging alkaline sediments and groundwater into the ocean.

“The reason why we looked in this region first of all was that we knew that there were limestone catchments and they tend to release more alkalinity into the fresh water,” Law said.

Canadian scientists would use ESNZ’s launch, Kimiora, to set a moored buoy with sensors, and would also operate an unmanned surface craft around the plume of water entering the bay from the Esk River.

“It’ll be mapping the surface waters and making measurements of… the carbon dioxide and the pH in the water, and from that, we can calculate the alkalinity.”

Further offshore, the ESNZ research vessel Tangaroa would move around southern Hawke’s Bay, Law said.

“We will be mapping the alkalinity, the salinity and the other things that will be indicators of the river input in the surface water. But we’ll also be making measurements throughout the water column.”

The team also planned to use an autonomous ‘glider’ craft that would move independently around the bay, collecting further measurements, including from the seafloor.

That would help the researchers to measure the effects of increased alkalinity on the marine environment, he said.

“If alkalinity has increased, what effect does it have on things like the phytoplankton and the sediments [on the seafloor]?”

ESNZ had already developed a good model of how river water and the alkalinity it carried mixed with the ocean, he said.

“The information we’ll get on this voyage will allow us to use the observations… to actually develop our measurements and our models.”

Measurements will also be collected by an autonomous ‘ocean glider’. NIWA-Nippon Foundation TESMaP

Later stages of the research would study natural equivalents for ocean fertilisation – when nutrients are added to the ocean to stimulate the growth of carbon-absorbing phytoplankton – and how much extra carbon can be stored if wood is deposited on the seafloor.

Rather than deliberate ocean fertilisation, the team would study what happened during a natural algal bloom, Law said.

“We’ll have a voyage in coming years down there to measure one of these phytoplankton blooms and measure the amount of carbon that’s falling out below it – how much is actually sequestered away in the deep ocean and where it goes.”

To study the effect of wood deposits, the team would look at the forestry slash that ended up on the seafloor in Hawke’s Bay because of Cyclone Gabrielle.

“We can look at how much of the carbon is still there and how much has been lost and how it’s impacted the biological communities in the sediment around it.”

Unlike the other two techniques, ocean alkalinity was a chemical process, making it slightly easier to monitor and measure, Law said.

“The real trouble with a lot of the biological marine CDR techniques is tracking the carbon, what its fate actually is, how much of it is going to get down into the deep ocean and be sequestered away for a long time?”

There were “all sorts of problems” with that.

“It can be broken down by feeding by animals and by bacteria, and it can be converted not only back into carbon dioxide quite quickly, but it can also be converted into other forms of carbon, which makes it difficult to monitor and measure and follow.”

The research project will also study phytoplankton blooms in coming years. RNZ / Cole Eastham-Farrelly

Alkalinity, on the other hand, was a more straightforward chemical conversion of carbon dioxide into forms like bicarbonate.

“We know that it’s fairly stable in those forms for long periods of time – longer than 1000 years.”

The full research project aimed to answer important questions about what might happen if marine carbon dioxide removal did go ahead in future, Law said.

“What do we need to know? What are the risks? What are the benefits of these things? How will they impact ecosystems and the ocean’s chemistry? How much carbon dioxide could be removed? How do we actually monitor and verify them?”

That would help to inform New Zealand’s ministries and government “about whether this is an appropriate thing for us to be doing or not”, he said.

“If we were to go down this line, what do we need to know? What regulations do we need in place before we can even consider deploying something in our waters?”

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– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand