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Oceans Symposium Highlights Need To Establish Independent Oceans Commission

Oceans Symposium Highlights Need To Establish Independent Oceans Commission

Scoop13-05-2025
Press Release – EDS
An overarching theme of the day was the power of collaborative effort in achieving positive change.
The Environmental Defence Society's annual environmental summit kicked off yesterday in Auckland with an Oceans Symposium.
Speakers highlighted that the marine environment is in serious trouble. In some parts of the country, the sea is warming three times faster than global trends. We heard that the Hauraki Gulf is in an impoverished state. Sediment is taking its toll. Kina barrens have taken over large tracts of the coast.
Ecosystems are responding in worrying ways. New Zealand's marine productivity has decreased rapidly since 2022. As NIWA scientist Matt Pinkerton advised, 'it is as if some threshold has been crossed'. We were warned to expect unpredictable changes.
International keynote speaker Dr Salvatore Aricò, CEO of the International Science Council, led the discussion by talking about the importance of integrated marine spatial planning, and 'bottom up' approaches complementing 'top-down' policy. He talked about the need to inform dialogue with science.
Linda Faulkner captured a wider concern that translating science into marine policy is a 'massive issue'. But there are excellent examples of science informing collaborative change. We heard about the success of marine protection in Fiordland, which has helped rebuild the rock lobster population there, and the promising work by University of Auckland scientists to restore kelp forests in the Hauraki Gulf.
EDS CE Gary Taylor interviewed Fisheries and Oceans Minister Shane Jones, who confirmed he's committed to addressing kina barrens, including by considering rock lobster closures and sourcing funding to assist kina removal.
Minister Jones said that his proposed changes to the Fisheries Act wouldn't cripple the paramountcy of fisheries sustainability, which is a good thing given Professor Stephen Wing's no-nonsense statement that the days of expansion of new fisheries into new habitats are over, and that we are now in a regime where restoration of fisheries is the most profitable game. When asked about rolling out regional fisheries plans, including for the Marlborough Sounds, Minister Jones agreed we need more. He said the Hauraki Gulf marine protection bill is imminent, and with respect to marine protection, we should bank 'good enough'. Trawl zones would not be created before the next election, which is disappointing.
An overarching theme of the day was the power of collaborative effort in achieving positive change.
Edward Ellison talked about the need for respectful, community-driven and collaborative processes which recognise cultural connection and have strong Treaty Partner engagement.
The Symposium concluded with a panel debate about the merits of establishing a National Oceans Commission. There was consensus that such a body had merit, but it would need to be independent from government, bring iwi and hapū to the table, and have teeth. There was little support for another purely advisory body.
David Attenborough's recently released movie 'Ocean' was highlighted as a must-watch for those interested in the future of the oceans.
Overall, the key message from the Symposium was the need to act now, the need to act together, and the need to put the health of the oceans first.
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Gabrielle's Intense Rainfall Made Landslides Inevitable
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Gabrielle's Intense Rainfall Made Landslides Inevitable

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Gabrielle's Intense Rainfall Made Landslides Inevitable
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Gabrielle's Intense Rainfall Made Landslides Inevitable

Press Release – Earth Sciences New Zealand A thorough analysis of the Cyclone Gabrielle landslides led by Earth Sciences New Zealand, reveals that the ground was so saturated by the amount of rainfall, it didnt matter how wet ground conditions were beforehand landslides were going to happen. Cyclone Gabrielle was one of the most extreme landslide-triggering events ever recorded globally. It is estimated that more than 800,000 landslides were caused by the extreme weather event, cumulatively covering an area of around 100 square kilometres – about the same size as the city of Napier. A thorough analysis of the Cyclone Gabrielle landslides led by Earth Sciences New Zealand, reveals that the ground was so saturated by the amount of rainfall, it didn't matter how wet ground conditions were beforehand – landslides were going to happen. Study lead author, Earth Sciences New Zealand engineering geologist Chris Massey (formerly GNS Science), explains that a major factor influencing landslide triggering is how much moisture is already in the soil compared to the amount it can absorb before reaching a critical point and failing. 'In the case of Cyclone Gabrielle, the intense rainfall over a short period overwhelmed the natural drainage systems, and many of the affected slopes were inevitably pushed past their tipping point regardless of the pre-existing soil moisture conditions,' Dr Massey says. Dr Trevor Carey-Smith, climate scientist at Earth Sciences New Zealand (formerly NIWA), was a co-author on the study, contributing rainfall data and analysis. 'The quantity of rainfall in many locations was unprecedented; inland from Esk Valley 500 mm fell in 24 hours – over 50% higher than the previous record. Rainfall is typically one of the more important factors influencing likelihood of landslides, so the huge quantity of water that fell over a short period of time meant we weren't surprised that landslides occurred during the event – however the sheer number triggered was astonishing,' Dr Carey-Smith says. 'We already know from attribution studies that climate change contributed to the intensity of rainfall during Cyclone Gabrielle and that this is likely to increase further in future.' The study, published in Landslides Journal, found that, aside from rainfall, the most significant factors influencing landslide locations were geology type, vegetation type and, of course, the steepness of the slope. Dr Massey says areas covered in scrub and grassland were much more prone to landslides than those with forest. 'In regions like Tairāwhiti-Gisborne and Hawke's Bay the density of small and shallow landslides occurring in areas with scrub and grassland was extremely high – up to 327 landslides per square kilometre. Such landslide densities are typically much higher than those associated with rainstorms overseas,' Dr Massey says. 'Interestingly, indigenous forests offered better protection than exotic forests.' Dr Massey notes that places where vegetation had been lost in recent years (3-5 years preceding Cyclone Gabrielle) were more likely to experience landslides. 'This finding demonstrates a clear link between deforestation and increased landslide triggering. We hope this research can support informed decisions about land use in the future to help mitigate these disruptive events. 'And with climate change increasing the frequency and intensity of cyclones, there has never been a more pressing time to use science to adapt to our changing conditions and support people, industry and government to be more resilient.' Contributing author, Te Whare Wānanga o Waitaha | University of Canterbury Senior Lecturer in Disaster Risk and Resilience Dr Tom Robinson, led a group of students who mapped most of the landslide data over a nine-month period for the study. 'As far as we are aware, this is the largest number of landslides ever mapped for a single storm, certainly in New Zealand, and provides a valuable source of information for future landslide modelling,' Dr Robinson says. 'This research has given UC students a unique opportunity to be part of core research that will better inform our understanding of landslides during major storms and how the community can adapt to our changing climate conditions.' The study was funded by New Zealand's Ministry of Business, Innovation and Employment's Extreme Weather Strategic Science Investment Fund, and the Sliding Lands Endeavour Programme.

What are microplastics doing to our brains? UN talks will debate the issue next week
What are microplastics doing to our brains? UN talks will debate the issue next week

NZ Herald

time01-08-2025

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What are microplastics doing to our brains? UN talks will debate the issue next week

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