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Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.

This week

Hormuz latest

DELAYED ULTIMATUM: The week started with US president Donald Trump giving Iran 48 hours to reopen the Strait of Hormuz, a vital supply route for oil and gas, or the US would “hit and obliterate” Iranian power plants, reported the Guardian. By the end of the week, Reuters was reporting Trump’s statement that he would “pause” the threat of strikes for 10 days, claiming talks with Iran were “going very well”.

CLOGGED SUPPLY: Fatih Birol, executive director of the International Energy Agency, called the ongoing blockage of oil and gas supplies through the Strait “the greatest global energy security threat in history”, according to the Financial Times. ​​A separate article in the Financial Times reported that countries are “facing a cliff-edge as the flow of liquefied natural gas (LNG) from the Gulf comes to an abrupt end in the next 10 days”.

COAL RESURGENCE: Asian countries are “shifting back to coal” amid disruptions to LNG supplies sparked by the closure of the Strait of Hormuz, reported the Associated Press. Similarly, Japan announced plans to allow more use of coal power plants in an effort to boost energy security, noted Bloomberg. Elsewhere, analysts told CNBC how the crisis could “accelerate a shift into renewables” in a “watershed” moment for the energy transition.

UK fallout of Iran war

RENEWABLE HIGHS: The UK’s renewable output hit a record high on Wednesday, “helping to blunt the impact of the Middle East war on power prices”, reported Bloomberg. Meanwhile, the Press Association described a new government announcement on solar panels and heat pumps for all new homes from 2028 as “doubling down on its clean-energy drive in response to the Iran war”. At a household level, the Times reported that UK homeowners are “rush[ing] to install solar panels amid [the] Iran conflict”.

NORTH SEA MYTHS: Using a comment piece in the Sunday Telegraph, Conservative opposition leader Kemi Badenoch led calls predominately coming from right-leaning politicians and media to issue more oil and gas licences in the North Sea. Carbon Brief has published a factcheck exposing nine false or misleading claims about the impact on household bills, emissions and energy security of more North Sea drilling.

Around the world

  • CLIMATE PROTECTION: Germany unveiled a plan to help it reach its 2030 climate target and reduce its dependence on “volatile fossil-fuel imports”, reported Reuters.
  • DIAGNOSIS: A long-awaited report into the unprecedented blackout that left Spain and Portugal without electricity last April concluded that the “problem did not lie with solar and wind power”, said the Financial Times.
  • DELUGED: The US state of Hawaii struggled in the aftermath of “catastrophic flooding” that could cost over $1bn in damages, reported USA Today.
  • ARCTIC LOW: Sea ice in the Arctic has tied last year’s record for the lowest-ever peak winter extent, reported Carbon Brief.

91%

The amount of excess heat trapped by the Earth that is stored in the ocean, according to a UN World Meteorological Organization report covered by Agence France-Presse.


Latest climate research

  • Extreme events and climate change pose “major threats” to the preservation of underwater cultural heritage, such as sunken ruins, wrecks and archaeological remains | Proceedings of the National Academy of Sciences
  • Human-driven climate change made extreme fires across the Arctic from 2019-21 more than 200 times more likely | Environmental Research Letters
  • A county-level study in the US from 2013-24 suggests “higher temperatures are associated with increased risk of police violence” | PLOS One

(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)

Captured

India’s carbon dioxide (CO2) emissions grew by 0.5% in the second half of 2025 and by just 0.7% in the year as a whole, the slowest rate in more than two decades, according to analysis for Carbon Brief published this week. This marks a sharp slowdown from 4-11% in the preceding four years and is largely explained by increases in steel and cement production being compensated by falling emissions in the power sector. Carbon Brief also took an in-depth look at India’s delayed nationally determined contribution (NDC) published this week, which contains a new target to reduce its emissions intensity to 47% below 2005 levels by 2035.

Spotlight

The IPCC and Indigenous representation

This week, Carbon Brief speaks to researchers about how the UN’s climate science panel can better incorporate Indigenous peoples and their knowledge into its highly influential reports.

From the Quechua people in Latin America to the Oraon Tribe in Asia, Indigenous peoples’ lands cover more than a quarter of Earth’s surface.

Built up over millenia and transferred through generations, Indigenous knowledge is vital in conserving the world’s remaining biodiversity and building climate resilience.

Prof Pasang Yangjee Sherpa is a Sherpa woman from the Mount Everest region in Nepal and an assistant professor of lifeways in Indigenous Asia at the University of British Columbia, Canada.

Her research advocates for the inclusion of Indigenous people and their knowledge in climate science, particularly in the work of the Intergovernmental Panel on Climate Change (IPCC). Sherpa told Carbon Brief:

“If we are really interested in planetary health…we have to make sure that Indigenous peoples and Indigenous peoples’ knowledge is also on the table next to physical science and Euro-Western science.”

Ways of knowing

Last month, the IPCC held a workshop in Reading, UK, on engaging diverse knowledge systems in ways that are inclusive, equitable and aligned with future needs.

The workshop is expected to produce a set of recommendations, but the report is not yet available and the workshop itself was closed to journalists.

Sherpa was co-author of an independent report that informed the IPCC workshop. The research, funded by Wellcome, combined the team’s experience with a literature review and multilingual listening sessions with Indigenous scholars, leaders and thinkers.

The report explained how Indigenous peoples are disproportionately affected by climate change due to historical and contemporary colonial processes of territorial dispossession, political exclusion and structural inequality.

But the inclusion in climate science of Indigenous peoples and their knowledge is not just a justice issue, the report continues:

“Indigenous peoples are not merely vulnerable populations – they are frontline climate leaders whose territorial governance and sciences are essential to understanding and responding to the climate crisis.”

Addressing marginalisation

The report makes some immediate recommendations that can be done in the current seventh assessment cycle to prevent harm, ensure equitable participation and begin redressing historical exclusions.

These include appointing a minimum of two Indigenous contributing authors per relevant chapter and establishing an ad-hoc Indigenous advisory group.

Looking further ahead, the authors argue the eighth assessment cycle (likely due in the 2030s) requires institutional transformationto reshape governance, methodologies and participation structures”.

Sherpa told Carbon Brief:

“It’s very interesting to me that when you look at the UN and other policymaking spheres, Indigenous peoples from around the world have been actively involved for decades. It’s almost like academia has to catch up to reality, globally.”

Dr Rosario Carmona, also a co-author on the report, is a Chilean anthropologist with the International Work Group for Indigenous Affairs. She was also part of the scientific steering committee that proposed the IPCC workshop, on behalf of the Center for Intercultural and Indigenous Research in Chile. Carmona told Carbon Brief:

There are good precedents – and the IPCC works on these precedents – that recognise Indigenous knowledge systems as standalone, that don’t need to be validated [by other types of knowledge].”

Soul-searching

The IPCC has been convening this week in Bangkok, Thailand, to consider, among other things, fundamental questions about how it does things, for what purpose and on what timelines.

Now is a good opportunity for wider change in the IPCC mindset, Carmona told Carbon Brief:

“I feel that there is a critical moment now – and there is a huge awareness and a willingness to do things better.”

Watch, read, listen

CHOKING OF HORMUZ: The New York Times took a look inside the global, exceptionally critical journey of oil and gas, now upended by war”.

WARMING LIMITS: Writing in the Kathmandu Post, Maheswar Rupakheti, vice-chair of Working Group I of the IPCC, and policy researcher Gobinda Prasad Pokharel explored climate overshoot”.

REFORM RECKONING: A feature in the Guardian examined how residents of flood-stricken Lincolnshire are growing tired with the climate-sceptic views of their MP, Reform deputy leader Richard Tice.

Coming up

  • 22-29 March: COP15 for migratory species, Campo Grande, Brazil
  • 23 March-2 April: Third meeting of the preparatory commission for the High Seas Treaty, New York
  • 30 March: International Energy Agency energy technology perspectives 2026 report launch

Pick of the jobs

DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.

This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.

The post DeBriefed 27 Mach 2026: North Sea myths debunked | India’s climate plan | IPCC and Indigenous knowledge appeared first on Carbon Brief.

DeBriefed 27 Mach 2026: North Sea myths debunked | India’s climate plan | IPCC and Indigenous knowledge

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Climate Change

New Zealand moves to protect business with law curtailing climate litigation

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New Zealand’s parliament has adopted a controversial new law blocking a whole avenue of climate litigation and shutting down its most advanced corporate lawsuit, which has been blamed by the government for shaking business confidence and investment.

The Climate Change Response (Tort Liability) Amendment Bill, expected to take effect in the coming days after it is formally signed by the Governor-General, prevents all current and future civil claims for climate loss or harm under tort law.

Justice minister Paul Goldsmith said last week that the aim was to give businesses “certainty around their climate change obligations”, noting it would not alter the government’s responsibilities under the Climate Change Response Act 2002 nor business obligations under the Emissions Trading Scheme.

“Our response to climate change is best managed by the Government at a national level and not through piece-meal litigation in the courts,” he added in a statement.

Such litigation, he said, “risks developing a new regime that contradicts the framework Parliament has already enacted” to tackle climate change.

    Goldsmith singled out a key domestic climate lawsuit brought by Northland iwi leader and activist Mike Smith against six big companies: dairy firms Fonterra and Dairy Holdings, energy firms Genesis Energy and Z Energy, New Zealand Steel and coal mining firm BT Mining. A seventh original defendant, Channel Infrastructure, was dropped after it permanently decommissioned its Marsden Point oil refinery.

    Smith argued that these companies had caused him harm under public nuisance and negligence law, as well as a third breach of a duty to cease contributing to climate change that has yet to be tested domestically. He did not seek financial compensation, instead asking for the companies to immediately stop emitting or contributing to net greenhouse gas emissions.

    In one of the most advanced corporate climate accountability lawsuits in the world, a trial had been scheduled for April 2027 after the Supreme Court unanimously allowed the case to continue.

    Corporate lobbying in the shadows

    Smith described the passing of the bill as “deeply concerning”, particularly as it coincided with the Supreme Court hearing another of his climate lawsuits. In that case, Smith v Attorney-General, he argues that the government’s response to climate change and its impacts on Māori communities in particular breaches rights to life and culture.

    “That timing raises profound questions about the separation of powers and the rule of law,” said Smith. “Whatever one’s view of the merits of these cases, it is deeply troubling when parliament intervenes to remove a legal pathway while the courts are actively considering fundamental questions about climate responsibility, rights and the crown’s obligations.”

    The bill – which says that no person (including the government) can be found liable in tort for emissions-related climate change effects – followed major lobbying efforts by the companies defending themselves in Smith’s lawsuit. They outlined a proposed legal amendment in a briefing note to the government in 2024.

    The centre-right government has been fiercely criticised over its lack of transparency in relation to this lobbying activity. The national ombudsman recently found that the Prime Minister’s Office effectively withheld information requested by the Environmental Law Initiative about meetings, discussions and conversations regarding Smith’s case.

    Green groups fail to stop bill

    The bill sparked huge concern among environmental campaigners in New Zealand and elsewhere. Greenpeace Aotearoa called it a “shocking abuse of executive power” and the vast majority of submissions to a parliamentary inquiry said it should be rejected.

    But in the end, it was adopted with little resistance, moving relatively smoothly through parliament, passing its third reading by 67 votes to 53. Sam Bookman, climate law lecturer at Melbourne Law School, told Climate Home News he was not surprised by this, given that the coalition government has a secure majority.

    A complaint has been made to the UN special rapporteur on climate change and human rights by Smith, the National Iwi Chairs Forum Pou Tikanga and youth coalition Climate Clinic Aotearoa over what they see as the government’s heavy-handed approach. Smith is also challenging the new law in yet another lawsuit.

    “Pathetic”: New Zealand plans to barely cut emissions between 2030 and 2035

    Bookman thinks it “very unlikely” that such a challenge will succeed, noting that New Zealand’s constitution is firmly anchored in parliamentary sovereignty.

    But the expert in climate law does not see the bill as the end of legal action in the country, noting that New Zealand has a “sophisticated climate litigation landscape with a growing number of specialist and experienced lawyers and NGOs”.

    The country is also approaching its next general election in November, and some opposition parties have pledged to restore access to the courts if elected.

    Amanda Larsson, global project lead on agriculture for Greenpeace International, said: “This law deserves to be tested, and I strongly encourage the international climate litigation community to unite and help defend New Zealanders’ fundamental right to hold polluters accountable before this becomes a global blueprint.”

    Copycat legislation on the rise

    New Zealand’s move is part of a small but growing legislative effort to shut down climate litigation around the world.

    In the US, Republican politicians introduced legislation in the House and Senate in April that would shield fossil fuel firms from climate liability lawsuits. Similar laws have already been passed at state level in Tennessee, Utah, Iowa and Louisiana.

    The German state of Bavaria has put forward a similar proposal to the Federal Council, aiming to block private climate claims as well as the recognition and enforcement of foreign judgments imposing such liability. There are also proposals to limit available remedies and actions in the Netherlands and Belgium.

    UN General Assembly backs “climate obligations” set by world’s top court

    Bookman said he expects more efforts to counter climate damages litigation and advised plaintiffs to think about how to respond, including drawing on broader support in opposing them.

    “Even though it’s very hard for plaintiffs to win these types of cases, companies are very eager to avoid the expense, embarrassment and political accountability that come even with unsuccessful lawsuits,” he said.

    The post New Zealand moves to protect business with law curtailing climate litigation appeared first on Climate Home News.

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    Climate Change

    Indonesia’s nickel production cuts are not enough to create a sustainable industry 

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    Bhima Yudhistira Adhinegara is the Executive Director of the Center of Economic and Law Studies (CELIOS), an Indonesia-based economic think tank. Muhammad Zulfikar Rakhmat is the Director of the China-Indonesia desk at CELIOS. 

    Indonesia produces around 60% of the world’s nickel, a metal used to manufacture batteries for electric vehicles (EVs) – more than any other country in the world. But in 2026, the government sharply reduced how much of its nickel can be extracted from the ground.

    Production quotas were reduced by around 40% this year compared to 2025. Weda Bay, the largest nickel mine on Earth, had its allowance cut by more than 70% and exhausted its full-year quota by the end of May, halting mining entirely; it cannot resume large-scale extraction until next year unless regulators grant an extension.

    The policy has sparked a vivid debate in Indonesian policy circles: how can the country shift its strategy from a decade of mining vast quantities of cheap nickel to producing a high-value and low-carbon material that the rest of the world wants for EV batteries.

    The cuts aren’t a silver bullet to clean up Indonesia’s nickel industry, whose smelters are powered by coal – the most polluting fossil fuels. But alongside stricter enforcement of environmental rules, it is one side of efforts to produce more sustainable nickel for a premium.

    Restricting Indonesia’s nickel output

    Production quotas were introduced to stop the collapse of nickel prices because of oversupply in the market. Prices had fallen more than 40% in 2023 alone and kept sliding as Indonesian supply kept growing, hitting a four-year low of around $13,900 a ton in late 2025.

    Critics called the recent tightening of production quotas proof that Indonesia’s nickel strategy has failed, arguing that the industry shouldn’t need to throttle its own output to survive. But when assessed against what the policy was supposed to do – push up nickel prices – it has worked. Prices jumped to $20,000 a ton in May, the highest since 2024.

      Chinese industry groups representing companies that have invested billions to mine and refine the country’s nickel were furious, warning Indonesia’s president Prabowo Subianto that the cuts put $50 billion worth of investment at risk. But much of that Chinese capital is sunk into smelters and processing plants built specifically to run on Indonesian ore, and cannot simply be moved elsewhere. That gives Jakarta more room to hold its ground than the warning suggests.

      Stronger environmental enforcement

      Since the start of the year, Indonesia’s forestry task force has seized more than four million hectares of land from mines and plantations operating illegally in protected forests, collecting over two trillion rupiah ($113 million) in fines.

      This included 148 hectares seized from Weda Bay for lacking a forestry permit. The share of nickel produced from illegal small-scale mining also fell from about a quarter in 2022 to roughly 10% by 2024.

      The crackdown responds to serious environmental damages in the nickel industry. On Obi Island, a waste pond collapsed after heavy rain in June 2025, flooding three villages and killing a resident. Internal company tests found chromium-6 – a carcinogen – in the water, in quantities far above the legal limit. The footprint of another mine near Raja Ampat, which is home to some of the world’s richest coral reefs, grew 60-fold in just eight years.

      A coastal village is wedged between the sea and a large nickel mine in Indonesia
      The fishing villages of Tapunggaya in Sulawesi, Indonesia, are squeezed between the sea and an expanding nickel mine (Photo by Garry Lotulung/NurPhoto)

      The market is responding to early cleanup efforts. Low-carbon nickel now sells for a real premium, roughly $18,800 to $19,300 a ton compared with $17,900 to $18,300 otherwise, as carmakers seek to source cleaner materials to comply with the European Union’s new emissions rules for imports.

      In turn, this is incentivising the industry to do more to green its operations. Vale Indonesia’s smelter in South Sulawesi now runs almost entirely on hydropower, for example.

      None of this addresses coal use, however. Major Indonesian nickel producers still emitted an estimated 15 million metric tons of greenhouse gases in 2023. Indonesia may be cracking down on illegal mining and rewarding cleaner producers but it is still running its mines on the dirtiest fuel available.

      Unequal benefits

      For Indonesia to truly benefit from producing cleaner and high-value nickel, it needs to reap the economic benefits too. Although the industry has boosted the country’s economic growth, the reality on the ground tells a different story.

      Konawe in Southeast Sulawesi is home to a major smelting complex. Growth in the district jumped from 6% to 22% between 2015 and 2023, driven almost entirely by the nickel industry, according to a study by the Lowy Institute study. At the same time, poverty levels increased slightly and unemployment remained unchanged.

        In Halmahera, another epicentre of the nickel industry, spending by the poorest fifth grew just 5% between 2019 and 2022, compared with 28% for the wealthiest fifth, according to a separate study.

        Part of the reason for this inequality is the system for transferring mining royalties to district authorities where the mines are located. In theory, they are entitled to the largest share. But in practice, payments are delayed, companies routinely dispute what they owe and royalties are pooled and distributed across a larger area.

        The Natural Resource Governance Institute has found that decentralisation handed local governments power to approve new mines faster than they could build their capacity to manage them. Higher output raises national income on paper, but local governments remain constrained by fiscal rules and infrastructure costs that scale with mining.

        None of this makes the 2026 quota cuts a mistake. Indonesia has every right to defend its pricing power over a resource it controls. But limiting extraction isn’t going to fix underlying issues around environmental enforcement and revenue-sharing. That requires rules that are consistently enforced, royalties that reach communities living by the mines, and a plan to wean smelters off coal.

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        Climate Change

        Risk of “catastrophic” oil spill reaching Kimberley coast found in Woodside’s Scott Reef gas drilling plans

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        SYDNEY, Monday 24 August 2026 – New analysis of Woodside modelling released by Greenpeace Australia Pacific and Environs Kimberley has revealed the oil and gas corporation’s plans to drill at Scott Reef could cause an oil spill up to 30 times bigger than the 2009 Montara disaster, impacting the Kimberley coastline and reaching as far as Indonesia.

        The new analysis details the “catastrophic” oil spill risk put to environmental regulators for approval by Woodside in its Browse to North West Shelf Project (Browse) plans, the worst-case scenario being a blowout directly below Scott Reef, polluting whale migratory pathways and covering isolated turtle nesting ground with oil condensate.

        An FOI application (F348) revealed the federal environment department (DCCEEW) asked offshore oil and gas regulator NOPSEMA to look into the oil spill risk in 2025. NOPSEMA’s response to the application refused access to its report, and one document shows DCCEEW sought further advice this year.

        Greenpeace and Environs Kimberley are calling on the Federal Government to publicly release the NOPSEMA report given the risk of an uncontrolled release of oil condensate from directly below Scott Reef.

        Hannah Schuch, Senior Campaigner at Greenpeace Australia Pacific, said: “Woodside is aware that drilling at Scott Reef risks a massive oil spill that would have severe, far-reaching consequences. It appears environmental regulators are aware too.

        “The state and federal governments need to take this risk from Woodside’s drilling plans seriously, as they could end up allowing the worst oil spill in Australian history.

        “The pygmy blue whales that migrate up and down the WA coast with their newborns each year could be swimming and feeding in toxic, oil-slicked water. Woodside’s proposal to drill at Scott Reef is an environmental disaster waiting to happen, and the WA and federal governments have one surefire way to prevent catastrophe — reject Browse.”

        Martin Prichard, Executive Director at Environs Kimberley, said: “A catastrophic oil spill by Woodside would be disastrous not just for marine life in the area but also for the Kimberley’s $500 million tourism industry.

        “The state and federal governments will see five marine parks on the Kimberley coast included in the risk area of a catastrophic Woodside oil spill.

        “The Montara oil spill was disastrous for West Timor with the toxic oil destroying seaweed farmers’ livelihoods. The Kimberley dodged a bullet with Montara, we were lucky the spill didn’t head our way. Myself and a crew flew over the Montara oil spill and followed it as far as we could. It was like a scene from a disaster movie.”

        After the WA Environmental Protection Authority deemed Browse “unacceptable” due, in part, to oil spill risk, Woodside submitted a mitigation plan based on technology that has never been used “in anger”, a weakness stated in an independent expert review of the plan.

        Professor Richard Steiner, independent oil spill expert, said: “A large offshore spill is impossible to effectively contain or recover. Historically, only 2-6% of total spill volume is recovered and the ecological injury from the release of toxic hydrocarbons in the sea can be severe, extensive, and long-term.

        “Here in Alaska, government research concludes that several marine populations injured by the 1989 Exxon Valdez oil spill, including whales, fish, and seabirds, are still not recovering today, 37 years later. We should expect similar long-term ecological impacts in Western Australia if there were to be a major oil spill. The only sure way to avoid the risk of a catastrophic marine oil spill is to not develop oil and gas projects in marine environments.”

        -ENDS-

        Media contact

        Emma Sangalli on emma.sangalli@greenpeace.org or 0431 513 465

        Risk of “catastrophic” oil spill reaching Kimberley coast found in Woodside’s Scott Reef gas drilling plans

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