Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Eyes on the Arctic
SOURCE, NOT SINK: The Arctic tundra has become a net emitter of greenhouse gases, rather than a “carbon sink”, for the first time, according to the Arctic Report Card issued this week by the US National Oceanic and Atmospheric Administration. The Alaska Beacon wrote that this shift is “result of permafrost warming, increased wildfires and other effects of climate change”.
ARCTIC ACREAGE: E&E News reported that the US Bureau of Land Management will open 400,000 acres of the Arctic National Wildlife Refuge for oil and gas drilling, despite promises to the contrary during Joe Biden’s 2020 campaign. The area represents the minimum that was required to be put up for sale by Donald Trump’s 2017 tax bill, which opened the preserve to development, Reuters said.
UK’s path to ‘clean power’
ACTION PLAN: The UK government published a 136-page “action plan” for reaching its goal for low-carbon sources to meet 100% of electricity demand and 95% of generation by 2030, BBC News reported. It includes various reforms that ministers will introduce over 2025 to boost renewables, change the planning system, increase flexibility in the electricity grid and support energy storage projects, according to the broadcaster.
RECORD RENEWABLES: The Financial Times said that the government is considering weakening the rights of communities to object to new pylons or windfarms in their neighbourhoods as part of the plans. It added that, in a bid to meet its goals, the government is “preparing a record-breaking auction of renewable subsidy contracts next year”. Carbon Brief has just published an in-depth run down of the plan’s key details.
Around the world
- BRONZE MEDAL HEAT: The UK Met Office has predicted that 2025 will likely be in the top three warmest years on record, “falling in line just behind 2024 and 2023”.
- CANADA TARGET: Canada has a new target to cut its emissions to 45-50% below 2005 levels by 2035, a less ambitious pledge than its climate advisers suggested, Climate Home News reported. A statement from Canada said the pledge will be submitted to the UN in 2025 and act as its “nationally determined contribution” (NDC) under the Paris Agreement.
- HIGHLY DRY: More than three-quarters of Earth’s land is “permanently drying”, according to a report released at the UN desertification summit in Riyadh. AfricaNews reported that nearly five billion people will be affected by drying by the end of the century, if current warming trends continue.
- DENGUE ON THE RISE: The Pan-American Health Organization announced that, this year, the Americas have “faced the largest dengue epidemic since records began” more than 40 years ago. It said “the situation is linked to climate events favouring mosquito proliferation”.
- ‘NO WINNERS’: “Tariff wars, trade wars and sci-tech wars” will have “no winners”, Chinese president Xi Jinping said in a recent meeting with representatives from “major international economic organisations”, according to Xinhua.
- GEOENGINEERING GUIDANCE: The EU’s scientific advisory group recommended that the bloc should move to “prohibit solar geoengineering technologies…and push for a worldwide ban”, Politico reported.
£57.5 million
The record amount of funding provided to farmers in England who were impacted by last winter’s severe flooding, according to figures released to Carbon Brief.
Latest climate research
- According to research in Science, the 2014-16 marine heatwave in the Pacific Ocean killed at least half of Alaska’s common murre, an abundant seabird species.
- Climate-change-driven shifts in atmospheric circulation will result in increased turbulence over Europe, especially during the winter months, a study in Geophysical Research Letters found.
- A rapid attribution analysis by the World Weather Attribution service found that this year’s record-setting typhoon season that battered the Philippines was “supercharged” by climate change. Carbon Brief covered the findings.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

Ahead of Donald Trump’s second term as US president, a rerun of his first trade war with China is firmly on the cards – and minerals key to the energy transition may end up in the crossfire. Carbon Brief took an in-depth look at what US-China tensions over critical minerals could mean for the stability of their supply chains and for the transition to cleaner energy. The Venn diagram above – put together by the Chinese government and translated to English by Carbon Brief – shows where China expects there to be overlap between itself, the EU and the US when it comes to minerals and materials considered to be “critical” for energy and industry.
Spotlight
What concerns climate scientists
This week, Carbon Brief speaks to scientists at the annual meeting of the American Geophysical Union in Washington DC about what is on their minds as 2024 draws to a close, and what they think the biggest climate stories of 2025 might be.
Their answers have been lightly edited for length and clarity.
Prof David Ho, professor of oceanography at the University of Hawaii at Manoa and co-founder and chief science officer at [c]worthy
All I seem to think about these days is CDR – carbon dioxide removal. Normally I say that it doesn’t make sense to deploy [CDR] until we decarbonise drastically, because it is useless when we’re still emitting more than 40bn tonnes of CO2 every year…But if we don’t start now, we might not be able to scale [up] fast enough.
I’m thinking about that because it does have to go from something that most people have never heard of, to the biggest thing we’ve ever done, in a short time.
It’s really hard to know with the new administration in the US [what the biggest story will be].
But the overarching story, of course, is that we’re emitting more CO2 – things are getting worse, and we’re not doing anything about it. And whether that remains the biggest story or not, I don’t know, because it seems like everything that we do is small compared to the fact that we don’t do anything about the continued use of fossil fuels.
Dr Sahra Kacimi, a polar scientist at the NASA Jet Propulsion Laboratory
There are a couple things that have been on my mind. My research is really focused on sea ice and how can we better monitor it from space, which means providing better estimates of sea ice thickness, including the snow on top of it, and then trying to use a combination of satellite observations to really better understand the state of sea ice and how it’s changing in the context of global warming.
I’m really interested in this new satellite mission called SWOT [Surface Water and Ocean Topography]. To me, it really marks the beginning of a new era…Everyone you can talk to – people working on hydrology, oceanography, sea ice – what we’re seeing is just incredible.
Antarctic sea ice is a really hot topic, because there’s still a lot of things that we don’t know about it and about why it’s been changing so much in the past few years…Not necessarily next year, but in the next few years, the Southern Ocean and Antarctic sea ice and Antarctic climate is going to be a major, major climate story.
Dr Cynthia Rosenzweig, senior research scientist and head of the Climate Impacts Group at the NASA Goddard Institute for Space Studies and winner of the 2022 World Food Prize
When AgMIP [the Agricultural Model Intercomparison and Improvement Project] started and we started holding these sessions at AGU on the effects of climate change on agriculture and food, they would be very small. And now you can see how this area is growing in importance and [in] the science.
The work is going beyond the “big four” crops – wheat, rice, maize and soya beans. Of course they will always be very important, but you can see a role for a much broader range of crops…I would also say [there’s a growing focus on] mitigation and adaptation together.
It’s wonderful to see all this wonderful work. But unless you coordinate it and actually then bring it to the policymakers, where does it go? And so that’s really the meaning of AgMIP. [We’re holding] the 10th global workshop in March-April. We’ll be bringing together teams of people who actually do the work, and they work together at the workshop. I really believe in putting “work” back in workshops.
Dr Erich Fischer, a climate scientist and lecturer at ETH Zürich
We have now seen the first year with 1.5C of global temperature rise, but that’s just the first one. So most places haven’t yet seen anything close to the highest local temperature, precipitation or drought conditions possible under today’s climate – even without any further warming. I expect to see a lot more records being broken in 2025.
And then the big question is whether global temperatures will continue to rise at these rates. This has implications for all regions of the globe – including the oceans, which are warming very rapidly themselves.
Watch, read, listen
SURVIVAL STORY?: The Washington Post’s Post Reports podcast asked whether the Inflation Reduction Act can survive the term of incoming president Donald Trump.
WORKING THE NIGHT SHIFT: Grist examined how fisherfolk and farmworkers are adjusting to overnight shifts to escape extreme daytime temperatures.
(RE)WILD THING: A comic in Vox explained how rewilding your lawn can help boost biodiversity and contribute to mitigating climate change.
Coming up
- 9-16 December: Plenary session of the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES), Windhoek, Namibia
- 16-20 December: 68th meeting of the Global Environment Facility Council, Online
- 17 December: Launch of IPBES nexus assessment
- 17 December: 168th meeting of the committee of permanent representatives of the UN Environment Programme, Nairobi, Kenya
- 18 December: Launch of IPBES transformative change assessment
Pick of the jobs
- International Centre for Integrated Mountain Development, Living Mountain Lab outreach specialist | Salary: $33,720. Location: Kathmandu, Nepal
- Sustainability Research Group at the University of Basel, funded PhD in sustainable agri-food system governance (two roles) | Salary: Unknown. Location: Basel, Switzerland
- Wired, senior writer, climate | Salary: $95,000-$127,000. Location: San Francisco, New York, London or remote
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 13 December 2024: Arctic tundra emitting CO2; UK sets path to ‘clean power’; What climate scientists worry about appeared first on Carbon Brief.
Climate Change
Coles, Woolworths failing on deforestation commitments
SYDNEY, Wednesday 26 August 2026 — New 2026 Sustainability Reports released by supermarket giants Coles and Woolworths this week demonstrate the retailers are failing on their commitments to end deforestation in their supply chains.
Adele Chasson, Nature Policy Lead at Greenpeace Australia Pacific said:
“These so-called sustainability reports are revealing. Despite their public commitments in 2024 and 2025, neither Coles nor Woolworths have taken deforestation-linked beef off their shelves. Meanwhile, bulldozers continue to tear up forests and bushland, pushing wildlife closer to extinction and causing mass toxic runoff to flow into the Great Barrier Reef. Millions of native animals like koalas are losing their homes to beef pastures each year, while the big supermarkets put off action.
“Australians would be shocked to know that beef on the shelves of our biggest supermarkets could be pushing threatened species to the brink of extinction. Collectively Coles and Woolworths have made more than $2 billion in profits in the last year, profiting from the destruction of wildlife and precious Australian nature. Coles and Woolworths owe it to shoppers to deliver on their promises and end deforestation in their supply chains now.
“As big beef buyers, Coles and Woolworths have an essential role to play in keeping Australia’s unique forests standing. They can help stop the Great Barrier Reef from being poisoned by runoff and protect iconic forest wildlife by taking deforestation off their shelves. It’s time these big companies put their money where their mouths are and follow through on their promise of sourcing and supplying deforestation-free beef.”
Climate Change
New Zealand moves to protect business with law curtailing climate litigation
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.
New Zealand moves to protect business with law curtailing climate litigation
Climate Change
Indonesia’s nickel production cuts are not enough to create a sustainable industry
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.

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.
The post Indonesia’s nickel production cuts are not enough to create a sustainable industry appeared first on Climate Home News.
Indonesia’s nickel production cuts are not enough to create a sustainable industry
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