More than 65,000 delegates have registered to attend the COP29 climate summit in Baku, Azerbaijan, potentially making it the second-largest COP on record.
This total is more than 15,000 lower than the record-breaking COP in Dubai last year – and marks the first time in seven years that a COP is not larger than its predecessor.
The figures are released amid reports that numerous world and industry leaders are skipping the summit, while Papua New Guinea has pulled its delegation out entirely.
Nonetheless, the size of the Baku summit still likely outstrips major COPs of the past, including Copenhagen, Paris and Glasgow.
COP29 host Azerbaijan has the largest delegation at the summit, with 2,229 people registered for badges. This is followed by Brazil (1,914) and Turkey (1,862) with the second and third-largest delegations, respectively.
The United Arab Emirates (UAE), hosts of COP28 in Dubai, has the fourth-largest delegation (1,011) and China (969) has the fifth.
While China’s delegation is smaller than at COP28 (when it was 1,296), both summits have seen a much larger presence for the country. For the 10 COPs before COP28, China’s average delegation of named participants was around 100 people.
All aboard to Baku
COP28 in Dubai last year was the largest COP in an almost 30-year history of summits – by some distance. More than 83,000 people attended the summit in person, beating the previous record of around 50,000 set in Sharm El-Sheikh in Egypt the year before.
The total number of registered delegates for COP29 in Baku clocks in at 66,778 – falling between the totals of the previous two COPs. With 3,975 “virtual” participants, this takes the overall provisional delegate total for COP29 to more than 70,000.
As the chart below shows, this bucks the recent trend that has seen the size of COPs increase every year since the 16,000 participants that travelled to Bonn, Germany, for COP23 in 2017.
It is worth noting that these are provisional figures, based on the delegates that have registered for the summit. The UNFCCC will release the final figures – based on participants collecting a physical badge at the venue – after the summit has closed.
Overall totals for delegates from parties, observers and the media for all COPs, as published by the UNFCCC (see this article for more details on the data). Data for COPs 1-28 are the “final” figures, while COP29 data is “provisional”. Chart by Carbon Brief.
This group adds up to 17,680 delegates – second only to COP28 in Dubai.
At last year’s COP, the participant lists published by the United Nations Framework Convention on Climate Change (UNFCCC) – for the first time – named every single person that had registered for the summit (excluding support staff). Previously, COPs have typically included thousands of “overflow” participants in which countries and UN agencies could nominate delegates without their names appearing on their official lists.
The Baku summit continues this more transparent approach, providing spreadsheets that name all participants.
For consistency with Carbon Brief’s analysis of previous COPs, the above chart includes overflow delegates as a single group. However, the participant lists do divide the overflow delegates between parties and observer groups. Including the overflow numbers takes the total for party representatives to 33,158.
The next-largest group is that of observers from non-governmental organisations (NGOs), which totals 9,881 delegates. This is the third-largest total in COP history (after the previous two COPs).
Along with the NGOs, there are several other groups that fall into the category of “observer organisations” – such as those participants representing UN bodies, intergovernmental organisations, other agencies and business representatives. These total 2,377 registered delegates – or 3,204 when overflow badges are included.
Finally, 3,575 media delegates have registered for COP29, a provisional total that is second only to COP3 in Kyoto in 1997.
Host lead
As is common at COP summits, the largest delegation at COP29 represents the host country. Azerbaijan has registered a delegation – including party overflow badges – of 2,229.
This is a far cry from Azerbaijan’s tiny delegations of the past. Before COP28 in Dubai, Azerbaijan’s delegation amounted to an average of six people.
The second-largest delegation comes from Brazil with 1,914 participants. Brazil typically brings one of the largest delegations and this year is no exception. A substantial delegation from Brazil was also likely considering they will be hosting COP30 next year.
(It is worth noting that some countries allocate some of their party badges to NGOs, which can artificially inflate the size of their official delegation.)
The third-largest delegation comes from Turkey (1,892), followed by UAE (1,011) and China (969). The rest of the top 10 comprises Russia (900), Indonesia (810), Nigeria (634), Japan (595) and Kazakhstan (478).
Just outside the top 10 is the UK in 11th (470), as well as the US (405) in 16th and Australia (394) in 19th.
Azerbaijan has seen the biggest increase in delegation size since COP28, increasing by 995 people. This is followed by Turkey (966 more) and Russia (448).
The smallest delegations belong to Niger and San Marino (two), Nicaragua (three), and Andorra and North Korea (five).
Unsurprisingly, the largest decrease in delegation size is for UEA (dropping by 3,148). Next is India (909) and France (649), while the US delegation has shrunk by 434.
Papua New Guinea has registered a delegation of 28, although prime minister James Marape announced back in August that the country would not be attending to “signal our protest at the big nations…for their lack of quick support to those who are victims of climate change, and those of us who are forest and ocean nations”.
Also, according to the provisional participant lists, Afghanistan has not registered a delegation. However, reports earlier this week suggested that Taliban officials will attend as observers. Therefore, their invitation from COP hosts Azerbaijan may have come outside the usual registration process.
The map and table below present the delegation size – split between party and overflow badges – for all the countries registered for COP29. The darker the shading, the more delegates that country has signed up. Use the search box to find the data for a specific party.
Gender split
The UNFCCC’s participant lists typically provide a title – such as Mr, Ms, Sr or Sra – for each registered delegate. In the past, this has allowed Carbon Brief to work out the balance of men to women in the delegations that each country has sent to a COP.
(This analysis always carries the caveat that the titles are designated by UNFCCC and not by Carbon Brief. In addition, Carbon Brief recognises that gender is not best categorised using a binary “male” or “female” label and appreciates that the UNFCCC’s lists may not be wholly accurate.)
However, since COP28 last year, the UNFCCC has started using other titles that do not indicate gender – such as Dr, Prof, Ambassador and Honourable. Therefore, for this analysis, these non-gendered titles – which make up around 150 names of more than 17,000 in the list of party delegates – have not been included.
This gives an average gender balance of party delegations of 60% male to 40% female.
As the chart below shows, this makes COP29 the most balanced COP in history. (Note that, for consistency, the COP28 and COP29 figures only include those on party badges, not overflow ones.
The average size of named party delegations (not including overflows) for each COP, divided by male (orange) and female (purple) participants. The lines show what percentage of the average delegation is male (orange) and female (purple). Data for COPs 1-28 collated from “final” participant lists published by the UNFCCC, while COP29 data is based on the “provisional” list. Note that 145 delegates in the COP29 provisional list are not included because there is no information on their gender. Chart by Carbon Brief.
There are two all-male party delegations this year – North Korea (five delegates) and Niger (two delegates).
In addition, this year, Carbon Brief’s analysis reveals that the gender balance across all registered delegates – both in-person and virtual – for COP29 is 59% male to 41% female.
The full list of COP29 party delegation sizes can be found here.
The post Analysis: Which countries have sent the most delegates to COP29? appeared first on Carbon Brief.
Analysis: Which countries have sent the most delegates to COP29?
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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