Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
US climate credentials and consequences
CLIMATE VEEP: US vice president Kamala Harris’s selection of Tim Walz as her running mate is being heralded by climate advocates, Inside Climate News wrote. The Star Tribune summarised Walz’s environmental record, saying that the current Minnesota governor has “passed ambitious climate policy” while in office – but “also clashed with environmental advocates” on other issues, including the Line 3 oil pipeline.
RAINFALL WRECKAGE: Tropical Storm Debby has wreaked havoc across the south-eastern US, with slow wind speeds contributing to the historic rainfall levels, NPR said. The Post and Courier documented some of the storm’s impacts, including flooding and downed trees and powerlines. Meanwhile, fire- and flood-prone areas of the US are seeing a net influx of residents, the Washington Post reported.
Around the world
- CARBON CAP: China’s State Council announced a new “dual control” plan for its emissions that will put a cap on carbon for the first time, Carbon Brief’s China Briefing said. Analysis published by Carbon Brief also revealed that China’s emissions have seen their first quarterly fall since the nation’s Covid lockdowns.
- CLIMATE COLLAB: Brazilian president Lula da Silva stressed the need for regional cooperation against climate change at a meeting with Chilean president Gabriel Boric that saw the two countries sign 19 bilateral agreements, Agencia Brasil reported.
- HEAT STRESSED: The Korea Times reported that five Koreans died of heat-related causes over the weekend, bringing the year’s total to 13. Meanwhile, heatstroke claimed more than 120 lives in Tokyo during July, according to the Associated Press.
- IPCC UNCERTAINTY: Governments failed to agree upon the timeline for producing the next set of climate change assessment reports amid “deep divergences” at the meeting of the UN Intergovernmental Panel on Climate Change, Climate Home News reported. (See Carbon Brief’s detailed summary.)
- KEEPING THE COAL: Global commodity company Glencore walked back on its plan to split its business in two, deciding instead to retain its coal division – a “major profit engine”, the Financial Times wrote. The newspaper explained that most shareholders had opposed the proposed restructure.
- REQUESTING RELIEF: Bloomberg reported that the UN World Food Programme “is seeking 290,000 tonnes of corn from as far afield as Mexico and Ukraine” in an attempt to alleviate the effects of the El Niño-driven drought that decimated harvests across southern Africa.
$52,071,133
The amount of “lifetime campaign contributions” that the 123 climate-sceptic members of the current US Congress have together received from the fossil-fuel sector, according to a report from the Center for American Progress.
Latest climate research
- Ocean temperatures around Australia are the hottest they have been in 400 years, imperilling the Great Barrier Reef’s iconic corals, a Nature study found.
- According to research published in Earth’s Future, sea-level rise, land subsidence and other factors may cause increasingly saline groundwater in coastal areas by the end of the century.
- A study in Nature Cities concluded that urbanisation increases local drought severity, while a majority of urban areas will “consistently suffer exacerbated drought severity” by mid-century.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

Many of the world’s largest emitting countries also stand atop the Olympic medal table, with the US and China securing the most medals so far, with Japan, France and South Korea all in the top 10 across both categories. In contrast, the world’s most populous country and third-highest annual emitter – India – has received four medals, while Dominica is the lowest-emitting country to win a medal at these games. (One notable omission from the chart is Russia, the world’s fourth-largest emitter of CO2. Russia is officially excluded from the Paris games following its invasion of Ukraine.)
Spotlight
What will sport look like in a warming world?
This week, Carbon Brief looks at the impact of climate change-driven warming on global sport.
Amy Steel was an Australia-based professional netball player, in peak physical condition, when she collapsed following a pre-season match on a 39C day in 2016.
At the time, she was not aware that heat could have such devastating long-term consequences. “It was sort of like, ‘All right, well, off you go and get better then,’” she said. But she “just really never got better after that day”.
Today, Steel shares her experience in order to raise awareness of the risks that heat poses to athletes and to advocate for change. She told Carbon Brief:
“As an athlete, you do feel a little bit invincible. You do feel like – you’re at your peak fitness; nothing can really touch you.”
Feeling the heat
Exertional heat illness – that which arises from intense exercise – is “not the same thing as the heat stroke that would kill your grandma sitting in her apartment without AC”, Dr Madeleine Orr, an assistant professor of sport ecology at the University of Toronto, told Carbon Brief.
Exertional heat stress occurs when the body accumulates heat during exercise and – whether due to protective gear or environmental factors – is unable to dispel it. “You can experience exertional heat illness in almost any condition,” Orr said.
However, climate change is making dangerous conditions more likely – as well as expanding the range over which they occur. By 2050, 60% of urban areas around the world will be unsuitable for holding an Olympic Games in late July and early August, according to a recent analysis published by Axios.
Dr Jessica Murfree, an assistant professor of sport administration at the University of North Carolina at Chapel Hill, told Carbon Brief:
“These things are happening frequently. They’re severe. They’re happening to men and women, boys and girls.”
Murfree added that heat-related illness is “not going to necessarily discriminate” in terms of who it affects. But, she stressed, the reality of who is most affected by heat is influenced by myriad other factors, including socioeconomic status and historical discrimination.
Rethinking sport
According to Orr, there are four actions that can help mitigate the dangers of heat in sport: educating people on what heat illness looks like; providing safety equipment, such as shade and ice baths; creating and enforcing policies around heat; and rearranging the sporting calendar.
These changes do not occur without resistance, Orr said:
“The challenge again, always, is that sport is very traditional…The way things are is the way they should be. And that’s not necessarily an equation that works.”
Heat policies, when in place, are not always enforced. And particularly at the grassroots level, Steel said, there is “not a great amount of understanding of the policy and what [are] the actual risks”.
Steel told Carbon Brief she worries about the future of grassroots sport and the “ability to rock up on a weekend and know that there’s going to be sport”. Whereas professional leagues can afford to build high-tech facilities to protect their athletes, most communities do not have that luxury.
At the same time, Murfree said, those organisations have the advantage of being “ingrained in their immediate community” and, thus, being able to advocate most directly for the solutions that will work for them. That gives her hope, she told Carbon Brief:
“No one knows the realities of climate change in a community more than the people who are in it every single day.”
Watch, read, listen
ISLAND IN THE SUN: Channel News Asia documented Kiribati’s efforts to fortify its land – and its geopolitical alliances – to keep the island nation from being swallowed by the sea.
HIDDEN HISTORY: A historian of science has uncovered documents revealing that US politicians have known the dangers of climate change since at least the 1960s, Grist reported.
DEADLY HOT: The Guardian’s Today in Focus podcast looked at the dangers of extreme heat – and how society can mitigate them.
Coming up
- 12-16 August: Meeting of the working group on benefit-sharing from digital sequence information, Montreal
- 14 August: Kiribati parliamentary election
- 26-30 August: Pacific Islands Forum Leaders Meeting, Tonga
Pick of the jobs
- EarthRights International, Mekong campaign director | Salary: ฿110,000-160,000 per month. Location: Chiang Mai, Thailand
- University of Helsinki, doctoral researcher in biodiversity change science | Salary: €2,400-2,600 per month. Location: Helsinki
- Alliance Bioversity & CIAT, system agronomist | Salary: unknown. Location: Bukavu, Democratic Republic of the Congo
- Carbon Brief, section editor (science) | Salary: £47,000. Location: UK/hybrid
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 9 August 2024: China’s first quarterly emissions fall since Covid; Harris chooses ‘climate vice president’; Athletes feel the heat appeared first on Carbon Brief.
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
Climate Change
Risk of “catastrophic” oil spill reaching Kimberley coast found in Woodside’s Scott Reef gas drilling plans
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
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