This year marks a decade since nations successfully negotiated the Paris Agreement, a landmark treaty that has been the guiding force for international climate politics ever since.
Yet, with another round of negotiations looming at COP30 in November, there has been growing discontent with the UN climate process.
Critics say the talks are not doing enough to accelerate emissions cuts, tackle fossil fuels or raise climate funds for developing countries, among other concerns.
Influential figures in climate politics and civil society groups say COPs are in need of an “urgent overhaul” and have launched various manifestos for change.
This has been recognised by the Brazilian COP30 presidency, which has acknowledged the “growing calls for change” and asked parties to “reflect on the future of the process itself”.
All of this comes amid concerns about a “crisis” of multilateralism, widespread conflict and escalating climate hazards.
Carbon Brief asked 16 leading experts about how they think the UN climate talks could be reformed, including Christiana Figueres, Todd Stern, Prof Navroz K Dubash, Bernice Lee, Paul Watkinson, Dr Joanna Depledge, Dr Jennifer Allan, Sandrine Dixson-Declève and Li Shuo.
The contributors’ answers are presented via the thematic sections below.
- Has the Paris Agreement been a success?
- How could the negotiations themselves be improved?
- Can UN climate talks drive faster emissions cuts?
- How could COPs ensure broader accountability?
- Do UN climate talks need majority voting?
- What should the role of the COP presidency be?
- Do fossil-fuel companies have too much influence?
- Are COPs too big?
- How could COP participation be improved?
- How can COPs drive change outside the UN process?
Has the Paris Agreement been a success?
Todd Stern, former US special envoy for climate change: Paris has performed well in some respects, including strengthening both its temperature and emission goals in light of evolving science. It also led to a first global stocktake that called for tripling renewable energy and doubling energy efficiency by 2030 – and transitioning away from fossil fuels – in order to achieve net-zero emissions by 2050.
Bernice Lee, distinguished fellow and senior advisor at Chatham House: It can be hard to remember that the process remains one of the most successful multilateral endeavours in recent history. It has delivered what few thought possible: agreement among nearly 200 countries on a global issue that cuts to the core of national sovereignty, economic models and domestic politics. That the COP process delivered the Paris Agreement – and more recently, an agreement to transition away from fossil fuels – is no small feat. It is also easy to forget that, prior to Paris, the world was on track for a catastrophic 4-5C of warming. Today’s pledges, while still inadequate, have bent that curve closer to 2.5-3C – still unsafe, but a meaningful shift…Rather than dwelling on the system’s imperfections, the question is whether it can evolve, realistically and politically. Dismantling the current system is unlikely to yield a stronger or more equitable one with the authority to override national decisions. The current process, after all, emerged from the ruins of earlier failures.
Kaveh Guilanpour, vice president for international strategies at the Centre for Climate and Energy Solutions: In the aftermath of every COP, there are calls to reform the UNFCCC. But we should be aiming for an evolution, not a revolution, for three reasons. Firstly, a revolution would almost certainly not result in something stronger than we already have. It is hard to imagine that it would be possible to adopt the Paris Agreement in the current geopolitical and economic context. Secondly, the Paris Agreement is working, albeit not fast enough. Thirdly, and most importantly, the biggest barriers to the effective functioning of the UNFCCC and delivering on the Paris Agreement are deficiencies in the underlying politics. No amount of tweaking of the UNFCCC process can make up for that.
How could the negotiations themselves be improved?
Dr Monserrat Madariaga Gomez de Cuenca, environmental lawyer at Legal Response International: It is time to fully acknowledge that there is a crisis of trust in the UN climate process and take appropriate measures to limit it. Parties mistrust each other and stakeholders mistrust the limited results emerging from 30 years of climate talks.
Paul Watkinson, former EU climate negotiator: Whilst the negotiating process can be frustrating, it remains essential. I would focus on making the workload more manageable, for example by grouping items on agendas and organising work on a multiannual basis. The aim should be to give enough time to every item – rather than addressing everything together each time – and develop the understanding that not every item needs a negotiated outcome at each meeting.
Kaveh Guilanpour: [We should] embrace the role of multilateral negotiations at the core – and recognise that this is what attracts world leaders and non-parties to COPs – but work towards contextualising the negotiations in a wider ecosystem of climate action, to which they are clearly linked. Do not place all expectations only on the negotiated outcomes.
Christiana Figueres, former executive secretary of the UNFCCC: We could…streamline repetitive and overloaded agendas – and elevate the accountability of COP presidents through a public oath of office, potentially administered by the UNFCCC bureau, that reminds the COP presidency of its role.
Dr Joanna Depledge, research fellow at the University of Cambridge and former UNFCCC secretariat staff member: Overall, the negotiations have proved resistant to anything but very limited reform. Why so? The fact is that many of the perceived inefficiencies are not flaws as such, but inherent to a global process where all nations are sovereign and equal – and all want a say. They are also inherent to the very issue of climate change, which, because it is so multifaceted…inevitably spawns an ever-expanding agenda, while attracting ever more government and civil society participants. And process is politics: moves to restructure the negotiations inevitably come up against powerful forces who know how to maximise their influence in the existing system and far prefer the status quo.
Dr Monserrat Madariaga Gomez de Cuenca: [COPs should] avoid rushed, closed-door negotiations without party consultations, which make implementation impossible. When draft text appears in the eleventh hour and is forwarded to the closing plenary without proper discussion, the possibilities of parties gaslighting each other on the actual “meaning” and “intention” of the text multiply. Language such as “transitioning away from fossil fuels” or the path towards the “Baku to Belém Roadmap to $1.3tn” – where the wording is not clear – allows parties to cherry-pick the most favourable interpretation, undermining the implementation of decisions that were already difficult to achieve.
Dr Joanna Depledge: Streamlining agendas and limiting government delegation size are worth fighting for, but imposing criteria for selecting COP hosts and excluding private companies involved in high-carbon activities are non-starters. If the real problem is that the COP is not taking decisions in line with the science, then the answer is not tinkering around the edges of procedure and process. What is needed is a major strategic rethink and more fundamental reforms – notably to decision-making practices and voting – as I argue elsewhere.
Harjeet Singh, founding director at the Satat Sampada Climate Foundation: The process must change: streamline negotiations, review consensus rules and ban fossil-fuel lobbyists from influencing texts. Centre the voices of Indigenous peoples, frontline communities and civil society. And scale up public climate finance to enable a just transition and real support for adaptation and addressing loss and damage – by making polluters pay. The recent International Court of Justice advisory opinion has reinforced the demand for climate reparations. COP30 must open a new era of accountability and justice.
Can UN climate talks drive faster emissions cuts?
Dr Jennifer Allan, senior lecturer in international relations, Cardiff University: The UNFCCC is only as effective as parties allow it to be. The Paris Agreement is working precisely how some feared and how some major emitting countries hoped. It is premised on the promise of transparency: that national reports and the global stocktake, coupled with principles of progression, will – somehow – inspire climate ambition. But transparency is not the same as accountability.
Todd Stern: The Paris regime itself has an important role to play. For starters, the regime needs to develop much more of a broad partnership in the spirit of the 2015 High Ambition Coalition. Part of such a shift will depend on considering whether country emission targets are adequate. Of course, Paris was built on the principle of “nationally determined contributions” and that principle cannot be thrown overboard. But Paris was also built on the promise that it would strive to prevent dangerous climate change, that new emission targets every five years would reflect countries’ highest possible ambition and that global stocktakes would, in fact, take stock.
Claudio Angelo, head of international policy at the Climate Observatory: The “nationally determined” nature of nationally determined contributions (NDCs), and the fact that no assessment of progress is formally done outside the five-year period of the global stocktake, mean that the ambition gap will become more difficult to close the more urgent it becomes to close it. The irony of it is that the Paris architecture was tailor-made to accommodate the idiosyncrasies of the US, which has pulled out of the agreement anyway.
Prof Navroz K Dubash, professor of public and international affairs at Princeton School of Public and International Affairs: A bumper sticker for reform of the UN climate talks might read: “Less talk of ambition; more action on implementation”. An “ambition-first” approach rests on extracting national statements of emissions reduction intent, leveraging these up through country “naming and shaming” and strengthening compliance through enhanced accountability. But the conditions are not favourable for this approach. National politics rarely privilege emissions reductions over other objectives and global politics is increasingly non-responsive to climate shame. By contrast, the conditions for a “learning-by-doing” approach based on on-the-ground implementation appear brighter. Many countries are experimenting with pragmatic efforts to turn their economies in low-carbon directions.
Todd Stern: There is nothing about the nationally determined character of country pledges that says countries cannot be questioned, prodded and critiqued. Protecting thin skin is not as important as protecting a liveable world.
Prof Navroz K Dubash: How might global talks enable learning by doing, rather than doubling down on ambition-first approaches? NDCs could be liberated to be templates for experimentation rather than rigid bases for accountability alone. Detailed sectoral low-carbon development pathways would highlight country commonalities, reveal productive scope for international cooperation and incentivise finance…A renewed international process should be focused on the hard, detailed work of enabling low-carbon, resilient development transitions and less on extracting statements of intent.
Kaveh Guilanpour: [We should] move to an approach where progress is measured predominantly by the impact of implemented national level policies, not NDCs on paper. Focus as much on enhancing international cooperation to deliver implementation as on increasing formal ambition on paper through NDC target-setting.
How could COPs ensure broader accountability?
Paul Watkinson: The biggest opportunity to support implementation is outside the formal process, putting order and structure into the “action agenda”. It has grown enormously in recent years and there have been many valuable initiatives…But there has been insufficient continuity and not enough follow-up and tracking to ensure that what is announced and promised is delivered. That is why I welcome the proposal of the incoming Brazilian COP30 presidency to structure the action agenda around six broad themes, drawn from the outcomes of the global stocktake, including a cross-cutting theme around enablers including the vital role of finance. They have the power, in close coordination with the high-level champions, to relaunch the action agenda on stronger foundations that could serve for years to come.
Dr Jennifer Allan: Within the negotiations, there is a glaring need to track the many commitments made outside of the regular negotiation process, either in presidency-led declarations or cover decisions. A central, publicly available hub needs to collate these promises and track progress. Presidencies may broker these commitments, but have few incentives to follow up on them.
Bernice Lee: What can – and must – change is how the system functions. Every decade or so, the climate regime has adapted – from Kyoto’s top-down legalism to Paris’s nationally determined flexibility. These shifts were not just philosophical, they also enabled new capacities. The collapse in Copenhagen helped catalyse renewable energy investment plans, while Paris introduced NDCs. The next phase must embed delivery and equity more deeply into the process including, for example, mechanisms aligning corporate transition plans with country transition, national policies and sectoral pathways. The outcomes of any reform process should mean fewer theatrics, earlier decisions and sharper accountability. All of this would enhance not only country but also public engagement, as well as the credibility of the global climate process.
Harjeet Singh: Rather than catalysing ambition, the Paris Agreement has been used by developed countries to shirk their historical responsibilities…It is not the Paris Agreement or the UNFCCC that failed – it is rich countries that undermined the system to protect polluters and preserve an unsustainable growth model. True reform begins with accountability. Wealthy nations must be held responsible for their historical emissions and must pay for the loss and damage they have caused.
Sandrine Dixson-Declève, honorary president at the Club of Rome and executive chair of Earth4All: Strengthen climate target enforcement through scientific oversight, peer review and robust reporting – ensuring governments, COP presidencies and corporations are held accountable. [There should be] a permanent scientific advisory body within the COP. Science must be central to negotiations, with all delegations regularly briefed on the latest data around risks, equity, solutions and scenarios.
Prof Navroz K Dubash: Ambition and implementation can be complementary, but they are not necessarily so. The former is driven by a relentless focus on emissions, comparability in emission pledges and building accountability. The latter is enabled by linking climate to other objectives, seeking country-specific formulations that buy political support and flexible experimentation that allows for learning from failure. Being more, not less, in the sectoral weeds might reveal opportunities not apparent from the stratospheric heights of climate negotiations. Well-developed, home-grown visions of sustainable futures are the most robust basis for developing countries’ legitimate claims for finance and other support.
Do UN climate talks need majority voting?
Erika Lennon, senior climate attorney at the Centre for International Environmental Law: Voting is the elephant in the room. The parties to the UNFCCC have never been able to adopt the “rules of procedure” because they cannot agree on the provision related to voting in the absence of consensus. Instead, they proceed meeting after meeting using them as “draft rules of procedure”. This has created a race to the bottom whereby countries that want to stall progress can do so. For 29 years, other parties have had to agree to the lowest common denominator in the name of consensus.
Claudio Angelo: The decision made in 2023 to “transition away from fossil fuels” needs both fleshing out and monitoring, but it is nowhere to be seen in the formal negotiations towards Belém. Such omissions reflect one fundamental problem of the UNFCCC and one fundamental flaw of the Paris Agreement: the consensus rule. Some countries are now shamelessly backtracking on their previous commitment and saying that any mention of cutting back on fossil fuels anywhere is a red line for them…A handful of countries are holding the future of humanity hostage because they can block whatever they want [due to the consensus rule]. Even COP presidencies that do want to move the agenda forward are afraid to be bold, lest “the process should collapse”. But a process that is unfit for purpose might as well collapse.
Christiana Figueres: In the context of the formal negotiations, we could reconsider our tradition of having to adopt all decisions unanimously. UNFCCC procedures require consensus for the adoption of decisions, not necessarily unanimity. The difference is important and admittedly challenging to manage, but worth examining.
Erika Lennon: The fix would be to adopt the rules of procedure, including the paragraphs on voting. The UNFCCC would then join many other multilateral environmental agreements – and its own financial instruments – that sometimes use majority voting.
Bernice Lee: In recent months, many well-meaning critics have called the UN multilateral climate process broken, arguing it should be dismantled and replaced, but with no viable alternatives waiting in the wings. Reforming core procedures – such as introducing majority voting or amending the convention – would require agreement from three-quarters of countries, followed by domestic ratification. Even without today’s fractured geopolitics, this would be a tall order.
What should the role of the COP presidency be?
Dr Monserrat Madariaga Gomez de Cuenca: [COPs should] avoid adding more pressure by clarifying duties and processes for the COP president. Rules of procedure simply give the COP president the power to formally conduct the negotiations, which should be done in a neutral manner. Increasingly, we see COP presidents setting exceedingly ambitious plans for their respective COPs. Ideas of “success” and “legacy” permeate what should be a facilitative role towards the collective progress of UN climate talks. COPs finish with statements and reports of achievements that do not reflect the actual progress. Reviewing the conduct of negotiations and the role and expectations of COP presidencies could help in restoring some of the damaged trust in the process.
Prof Thomas Hale, professor in public policy at the University of Oxford: The “action agenda” needs to escape the “boom-bust” cycle that shifting presidencies and high-level champions have imposed on it, in which new announcements trump delivery. The COP30 presidency has laid out a positive approach here, but the acid test lies in making it real.
Sandrine Dixson-Declève: Only countries with high climate ambition should be eligible to host COPs.
Li Shuo, director of the China Climate Hub at the Asia Society Policy Institute: Instead of – or alongside – three more paragraphs specifying how the world will “transition away from fossil fuels” or “triple renewable energy”, how about three renewable projects in the COP host country, to be announced in conjunction with the climate summit?…Efforts to advance the implementation agenda through additional multilateral rulemaking and COP decisions risk missing the point. The COP presidency…could showcase a handful of large‑scale renewable energy projects in their own countries, backed by concrete financing. Such a “trade fair” function of the COP would help bridge the widening gap between what is agreed at COPs and what is happening on the ground.
Do fossil-fuel companies have too much influence?
Erika Lennon: The fossil fuel industry’s survival depends on the UNFCCC’s failure, as meeting the goals of the UNFCCC and Paris Agreement undeniably means phasing out fossil fuels. It is therefore no wonder that, since the beginning, fossil-fuel industry lobbyists have been present at COPs and working to undermine ambition.
Dr Jennifer Allan: Presidencies have much to answer for and can be key to raising accountability. COP is becoming the new Davos: a place for billionaires to meet, without scrutiny of their activities or announcements. This must end. Presidencies should revoke invitations to [Amazon chief executive] Jeff Bezos and others who have been offered high-level platforms.
Erika Lennon: Parties could adopt a conflict-of-interest policy to, at the very least, make [fossil-fuel lobbyists’] influence transparent and subsequently exclude those who aim to unduly influence the process. Parties, including the presidency team, could refuse to give them badges…In addition, they could end greenwashing at COPs in the form of corporate sponsorships and pavilions.
Are COPs too big?
Prof Thomas Hale: COP is both too big and too small for an era of implementation. Its cost and complexity eat up scarce resources. Meanwhile, it creates a gravity well that warps the climate community’s work into an annual rush to the end of the year…At the same time, even the biggest COPs are puny compared to the problem. Climate change demands action from all of society…In this complex system, the UNFCCC process plays the critical function of setting agendas and goals. No other body has the multilateral legitimacy to serve as a lighthouse.
Dr Jennifer Allan: Climate summits could shift from a talkshop to a demonstration of leadership if invitations are only extended to countries that have submitted and maintained more progressive NDCs and are implementing them.
Prof Thomas Hale: We need COPs to be everything, everywhere, all at once. Alongside a single, two-week meeting in one place, we need lots of smaller, focused meetings in many places. Instead of an intergovernmental process that talks about action, we need to fully shift the “action agenda” into the heart of the UNFCCC. The good news is that the elements of this shift are already well in motion, with more and more cities hosting “climate weeks”…Regional meetings with more flexible formats reach more people, in a more targeted way, much more cheaply and efficiently than a COP.
Dr Jennifer Allan: I’ve been researching the role of side events, pavilion activities and Global Climate Action Hub panels in the “expo” that now dominates COP space and participation opportunities. There has been a decided shift, from a smaller number of events focused on negotiation and implementation to a huge array of panels showcasing new initiatives or national actions. It is about what is new, not following up on what has been agreed. Side events and Global Climate Action Hub events could shift focus under the secretariat and the high-level champions. Pavilion spaces could be reserved for those who can demonstrate that their presence will advance climate action.
Sandrine Dixson-Declève: COPs must evolve from negotiation-heavy forums to more frequent, smaller, solution-focused meetings centred on progress and implementation, with broad stakeholder participation.
How could COP participation be improved?
Erika Lennon: Civil society, youth, Indigenous peoples, women, local communities and people with disabilities, among others, have increasingly faced shrinking civic space in the UNFCCC process. They have to fight to have their voices heard, to be present in the rooms where decisions happen, for access to information and open decision-making, and to assemble peacefully.
Shreeshan Venkatesh, global policy lead at Climate Action Network International: Structural barriers…undermine inclusivity and equitable participation in UNFCCC meetings, from the high cost of accommodation at COPs to discriminatory visa practices and shrinking civil society quotas. These barriers must be dismantled to ensure all parties and stakeholders can participate fully and on equal terms.
Erika Lennon: Parties should incorporate and support participation not only at COPs, but also in climate action and decisions on the ground. They can do this by creating space across all agenda items to hear from rightsholders and ensuring human rights and civic space are guaranteed during all negotiations.
Shreeshan Venkatesh: Civic space and freedoms are under threat, even at COPs. Host agreements must guarantee freedom of speech, assembly and accessibility, backed by an independent body to address violations.
How can COPs drive change outside the UN process?
Sandrine Dixson-Declève: COP must transform from a forum of negotiation to a platform of delivery, inclusion and accountability, anchoring climate action in the lived realities of people and the demands of science.
Kaveh Guilanpour: There should be a thorough and honest analysis of the value add of the UNFCCC process and what is best left to other fora.
Christiana Figueres: While some negotiations remain necessary, the most urgent action has shifted to implementation in the context of market forces and climate economics. There is no doubt that civil society, businesses, cities and communities are moving faster than governments. These actors, traditionally considered and labelled as mere “observers” in the formal UNFCCC space, have become the true engines of transformation. One could consider the pros and cons of creating a semi-detached “real world” space alongside COP – one that amplifies their progress, showcases innovation and feeds actionable insights back into the formal process.
Todd Stern: The Paris regime has a role to play in encouraging and tracking strong action outside its purview. This includes the public and private sectors working together on rapid decarbonisation and on unlocking the kind of large-scale investment needed for countries in the global south to build sustainable and resilient economies.
Shreeshan Venkatesh: The UNFCCC, and other multilateral fora that have become central to the formulation and implementation of climate policy and international cooperation, must align with international law. This includes the recent advisory opinions from the ICJ and the Inter-American Court of Justice, and the obligations they clearly lay out.
Claudio Angelo: [There is] a final, bigger problem, which no UNFCCC reform can solve: the climate regime is a child of the democratic world order and the lynchpin of that world order has become a rogue state. The rise of the far-right and the erosion of democracy are rendering multilateralism itself useless – a world that is unable to stop genocides in Gaza and Sudan can’t solve the climate crisis.
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This letter is a bit more direct and longer than most of those which I write, but I hope you will be okay with that, because the times seem to call for being plain.
A few weeks ago I got a text message from an old and dear friend —let’s call her Hannah.
I have enough shared life with Hannah that, whenever we talk, the conversation always feels current and effortless, despite gaps of months or even years.
Hannah has been talking with her son — we’ll call him Neil — who is a teenager and doing well in school, but wildly worried about the state of the world, including the imminent trajectory of global warming. Hannah and I don’t text each other other very often, but on this occasion she’s reached out with something visceral:
Neil has challenged me to point him to something hopeful, if I can find it. He says so far no one is showing any will to uphold the Paris Agreement. I am checking in to see how you still manage to have real hope.*
Then, just a few days later, the United Nations Environment Programme Limiting Overshoot report landed, containing the principal finding that it is likely the global temperature will soon exceed 1.5°C.
After that news, and the real time devastation in Nepal, and in the context of the broader state of the world, I found myself having multiple conversations with friends and colleagues about the structure of hope. I want to openly share that after a few of these exchanges, I metaphorically closed the blinds, and wondered how to feel, and what to do, because there is no avoiding the dreadfulness of the news, and what it means for the suffering of people and life on Earth.
But if you are fortunate enough to have time, space and security to do so, then after the darkness, you open the shutters and once again there is light. This is the structure of my innermost resolve.
* * *
Our lives — those of us living on our magnificent earth now — have the greatest possible purpose.
There is virtually no problem that we endlessly clever and creative, human beings cannot solve, when we work together.
And we are not just intelligent and ingenious; we are inherently social, nurturing and brave; capable of the deepest enduring love.
Each of the roughly 12,000 generations of humanity so far has made life possible for those who have followed, through acts of devotion.
Babies have been held and fed. Water and food have been found and shared. Shelter has been built. For 12,000 generations we have held the hands of our children.
Every single one of us was once carried in the arms of another, unable to walk ourselves. It is our thoughtfulness, kindness and care that have seen us through as a species. Sometimes this has been in the most exigent of circumstances, when enough of our ancestors did not give in, faced incredibly difficult things, to somehow make it through.
And so it comes to this. To what we now must do. We must do as 12,000 generations of people did for us.
The struggle to keep global warming to under 1.5 degrees may be over. The battle of return—to get our planet back to safe temperatures at emergency speed and scale — is just beginning. Upon this struggle depends the future of all we care about, and that of all life on Earth. The prospects of the next 12,000 generations are conditioned by our efforts now.
Our work now is to keep the overshoot as low as we can, make it as brief as possible, and do everything within our power to alleviate other pressures on nature. It is to take care of humanity — of one another — in the face of mounting climate and ecological damage. And by these efforts, create the conditions for future flourishing. Every fraction of every degree matters.
What must now be done is hard, much tougher than should have been necessary, because of the vested interests in coal, oil and gas and deforestation, and the failures of decision makers. And while renewable energy has surged, making the case for change much simpler, on the other side of the ledger there’s the reactionary and gangsterist turn of politics and the multiplier effects of wars and mass violence, with the existential destabilisation of big tech looming over all.
There is no sugarcoating the scale of difficulty. But what is necessary remains within our collective power. We must never, for one second, say that returning our planet to flourishing is impossible — many of the obvious solutions already exist; but even where transformation relies on reforms, technologies or capabilities that might sound fanciful, or historical changes that are unprecedented, this can be no barrier to our conviction. After all, much of what we take for granted today as ordinary features of social life, would have been considered impossible by every single generation before us.
The world has not been destroyed by nuclear war; we solved the growing hole in the ozone layer; Antarctica was kept sacrosanct from exploitation. Humanity has collectively triumphed before, and can do so again.
We can find the necessary social and political will to do what is needed because these are endlessly renewable resources. The necessary financial capital exists. Apart from the fossil fuel industry, the greatest barrier we face is to mistakenly concede that what lies before us is insurmountable. It is not.
We must avoid the siren song of fatalism. Because. It. Is. Never. Too. Late.
None of which is to be insensitive to the horrors already unleashed — the deadly and grotesque harm to people, places and species that cannot be undone; or to be blind to the impacts that are coming. But where we have the power to act, we also have the responsibility — and the extraordinary privilege — to do what must be done.
Although she is wounded, our planet is still alive and beautiful beyond all of our comprehension. Hundreds of billions of creatures live and thrive still upon this earth. Nothing has happened until it has happened, and life fights for life. Every beetle, every tree, all the fish in the ocean, the smallest of the geothermal shrimps, the greatest of the whales and the mightiest of the birds — all demand life every second of their existence, so that their species too may have future generations.
No individual has to know how to solve this alone. Indeed, finding some detachment and humility is essential to concentrate on the role that each of us can play.
Hope is not merely a mindset or a story we tell ourselves. Collective power is not abstract; it is what we do, together, applying ourselves to the practical mechanics of change and contestation within society, by being part of the organisations and networks of people that are dedicated to effective strategies. It is why I am so committed to Greenpeace.
Working from without and within, there are opportunities to make rapid change within institutions, governments, businesses and communities to create the social, economic and political momentum for emissions reduction at speed and scale, reminding ourselves always of what remains possible, even if it hasn’t happened yet.
We can return the planet to safer temperatures. We can put technologies back in the service of people and life. We can return to the assumptions that seemed so obvious just one generation ago — that it is both possible, and our obligation, to build a better future for all people, and for life on Earth.
I did write back to Hannah and Neil, to say honestly to a treasured friend and her son, that yes, as a matter of faith, conviction, evidence and strategy, absolutely there is real hope. And this is a pledge not just to Neil and his generation, but to the next 12,000.
Together, we have the power. Together, we cross this bridge through the dark. To secure an Earth capable of nurturing life in all of its magnificent diversity.
We did not choose to carry this historic responsibility, but here we are. And it is so lucky that we are here.
I wouldn’t choose any other time to be here, alive on Earth, with you.
Antarctic sea ice has recorded its third-smallest winter peak extent since satellite records began 48 years ago, new data reveals.
Provisional data from the US National Snow and Ice Data Center (NSIDC) shows that Antarctic sea ice hit its annual winter peak on 14 September, with an extent of 17.59m square kilometres (km2).
The organisation notes that the data is still preliminary, adding that “large fluctuations in extent are typical of Antarctic sea ice near the seasonal maximum”.
One expert tells Carbon Brief that it is “concerning to see these low values persisting”, but says that scientists need more time to determine whether this represents a “structural shift” in Antarctic sea ice extent.
Meanwhile, at the Earth’s other pole, Arctic sea ice reached its annual minimum on 12 September, ranking as the joint-10th lowest in the satellite record.
The NSIDC notes that the last 20 years have seen the lowest 20 Arctic sea ice extents in the satellite record.
Antarctic peak
Dr Lettie Roach, a polar climate scientist at the Alfred Wegener Institute in Germany, tells Carbon Brief that this year’s Antarctic sea ice maximum was “well below average for the season”. She warns that, “after several decades of stable or increasing winter Antarctic sea ice conditions, it is concerning to see these low values persisting”.
She adds:
“Compared with the Arctic, it’s less clear how recent changes in Antarctic sea ice are attributable to human-caused warming vs natural variability. We need more years of observations to better understand whether this is truly a structural shift.”
Dr Clare Eayrs, a postdoctoral researcher at the Korea Polar Research Institute (KOPRI), tells Carbon Brief that, since recording a “near-average February minimum” extent, Antarctic sea ice has “returned to unusually low winter coverage”.
She notes that Antarctic sea ice extent in July and August this year were the fifth and fourth lowest on record, respectively, adding that “all five of the lowest July extents have occurred since 2022 and all four of the lowest August extents since 2023”.
The chart below shows Antarctic sea ice extent in 2025 (dark blue) and 2026 (red) so far. For comparison, the chart shows decadal averages (dotted lines) as well as 2023 (mid blue), the year of the smallest winter sea-ice maximum on record.
Eayrs tells Carbon Brief that the regional pattern of Antarctic sea ice cover “changed substantially during the growth season”.
For example, she says that “in April, the Bellingshausen Sea remained almost entirely ice-free, while the neighbouring Amundsen Sea had more ice than usual”.
However, by late August, changes in atmospheric pressure and wind meant that “the Bellingshausen deficit had largely recovered, while ice was unusually scarce in the Amundsen Sea and across much of East Antarctica”.
Arctic minimum
Meanwhile, the Arctic recorded its minimum summer sea ice extent on 12 September. At 4.60m km2, this year ties with 2025, 2010 and 2008 as the 10th-lowest sea ice extent on record.
The chart below shows Arctic sea ice extent in 2025 (dark blue) and 2026 (red) so far. For comparison, the chart shows decadal averages (dotted lines) as well as 2012 (mid blue), the year of the smallest summer sea-ice minimum on record.
Roach tells Carbon Brief that although this minimum is not “record setting”, it is still “lower than any sea ice minimum before 2007”. She adds:
“Human-caused climate change has reduced Arctic sea ice cover and thickness, so the region is fundamentally different compared to a few decades ago.”
Scientists have been tracking Arctic sea ice thickness using a reanalysis produced called the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) since 1979.
In March 2026, the National Oceanographic and Atmospheric Administration (NOAA) terminated a global dataset of air pressure that scientists relied upon to produce PIOMAS, forcing both datasets to stop publishing updates.
The PIOMAS website says it will take “considerable effort and time” to find alternative data to use in their reanalysis. It adds that “we don’t yet have a good sense if that’s possible with available funds and if so, when we will be able to resume production of a new PIOMAS timeseries”.
Roach also notes that August saw record-breaking heat sweep across much of the world, explaining that high temperatures “extended into Arctic coastal regions, close to regions with substantial sea ice loss – particularly the Barents-Kara and East Siberian seas”.
Dr Zack Labe, a scientist at Climate Central, tells Carbon Brief that the absence of a new record does not mean that ice cover is becoming more “resilient”. He says:
“Local weather patterns across the Arctic play a really important role in year-to-year sea-ice extent, even as the long-term trend is clearly downward.”
Labe tells Carbon Brief that weather in the Arctic this summer was “influenced mainly by lower pressure toward the central Arctic, which brought cloudier and cooler conditions that limited surface melt and delayed the start of the melt season”.
He explains that this “was most obvious across parts of the Beaufort and Chukchi seas, where the melt season didn’t really kick off until after early July, which was more than two weeks later than normal”.
In contrast, he says, the Atlantic side of the Arctic “had a much more extreme summer”, with sea ice in the Barents Sea recording its “earliest melt-out on record”.
This was partly due to “unusually warm air and ocean temperatures”, Labe says. He notes, for example, that parts of western Siberia saw unusually persistent temperatures more than 5C above the 1981-2010 average for much of the summer, which extended out over the Kara Sea and contributed to substantial ice melt in this area”.
Labe tells Carbon Brief that, going forward, scientists need “more data and observations of other sea-ice metrics, like ice thickness, which may give us better insight into the overall condition of the ice pack, especially during years like 2026 when it is very fragmented”.
(In March 2026, Arctic sea ice reached its peak extent for this winter, clocking in as the joint-smallest in a satellite record going back almost half a century.)
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The post ‘Concerning’ low sea ice persists as Antarctic hits third-lowest winter peak appeared first on Carbon Brief.
‘Concerning’ low sea ice persists as Antarctic hits third-lowest winter peak
Participants at COP31 in Antalya will have a “duty” not to interfere in Türkiye’s internal affairs under the country’s hosting deal with the UN, reviving a clause dropped for last year’s climate summit in Brazil that human rights groups warn could put activists at risk.
Türkiye has faced growing criticism from human rights groups over the jailing of opposition figures, journalists and activists and imposed a blanket protest ban around July’s summit of the NATO military alliance in Ankara.
The contested provision is included in the binding agreement between the UN climate secretariat and the Turkish government that sets out responsibilities over logistical arrangements and details participants’ rights and obligations.
The document, signed in June but only made public on Wednesday, gives accredited COP31 attendees immunity from legal action over what they say, write or do in connection with the conference. Climate Home News understands that this safeguard can be applied to what takes place both inside and, in certain circumstances, outside of the UN-controlled COP “Blue Zone”. For the first time, this protection explicitly continues after the summit ends.
But participants enjoying these “privileges and immunities” also have a duty to respect Türkiye’s laws and regulations and not to interfere in its internal affairs, the agreement states. Rights groups fear its wide-ranging formulation could be used to discourage criticism of the host government.
Climate Home News understands that whether an action is covered by the immunity or infringes on the host’s internal affairs would be evaluated on a case-by-case basis, with close coordination between the country’s authorities and the UN climate change body.
A separate provision states that immunity shall be waived where the UN believes it would “impede the course of justice”.
‘Chilling effect’
Those same provisions featured in the host country agreements for COP28 in the United Arab Emirates and COP29 in Azerbaijan, both regarded as authoritarian regimes, before being dropped for COP30 in Brazil.
Ann Harrison, climate justice policy advisor at Amnesty International, said it is “extremely disappointing” that the COP31 agreement re-introduced clauses that could “hinder the ability of human rights defenders and civil society organisations to conduct their work safely”.
COP31 electrification pledge leaves out clean power commitment
She added the provisions could have a “wider chilling effect” on rights to freedom of expression and peaceful assembly, given concerns over the human rights situation in Türkiye, including laws that “have shrunk civic space” and their “abusive” implementation by authorities.
The UN climate change body declined to comment.
Rights groups have documented blanket protest bans, unlawful use of force by the police and prosecutions of journalists, human rights defenders and lawyers across Türkiye in the last year.
Arrests and protest bans
Last July, environmental activist Esra Işık was sentenced to more than two years for “resisting” a public official over what Amnesty International described as a peaceful protest against an urgent expropriation order linked to the expansion of coal mining in south-western Türkiye. She is appealing the conviction.
Ahead of a summit of the NATO alliance in the capital Ankara in July, authorities put in place a 13-day blanket ban on demonstrations, citing “national security”, and arrested over 200 people. Human Rights Watch said the crackdown showed Türkiye’s “ruthless intolerance of freedom of speech and assembly”.
Earlier this month, Turkish police detained dozens of people as part of what rights groups described as the government’s widening crackdown on LGBTQ+ activists and venues.
Questioned by media as to how he would guarantee the right to protest at COP31, Kurum said earlier in September that his team would “try to meet” any request they receive from civil society and give them “a free space to express themselves”.
“Don’t worry, thinking you will not be able to voice your opinions or really share your thoughts,” he said in an attempt to reassure campaigners, adding that he had put former deputy environment minister Mehmet Birpinar in charge of liaising with civil society.
Civic space needed
Camilla Pollera, human rights and climate change campaigner at the Center for International Environmental Law (CIEL), said meaningful participation at COP31 is fundamental to the legitimacy of climate action.
“At a climate summit, civil society participation necessarily includes being present, speaking out, scrutinising governments’ decisions and climate policies, and advocating for communities most vulnerable to climate change,” she added.
At last year’s COP30 summit, thousands of Indigenous people and climate activists peacefully marched through the Amazonian city of Belém in the first major demonstration outside the UN venue in four years. Smaller-scale demonstrations were largely confined to the “Blue Zone” at COP27 in Egypt, COP28 in the UAE and COP29 in Azerbaijan.
In two other separate incidents in Belém, members of the Munduruku tribe blocked access to the conference centre for hours, demanding an end to development projects in their ancestral land, and protesters stormed through the venue clashing with UN security officials.
The COP31 hosting agreement keeps some of the safeguards previously hailed by civil society groups. The government and the UN secretariat commit to upholding “the fundamental human rights” of all participants in the agreement’s preamble.
Under the deal, Türkiye also needs to ensure that security personnel follow “the highest ethical and professional standards and are expected to behave with integrity and respect”.
The post COP31 attendees told not to interfere in Türkiye’s “internal affairs” appeared first on Climate Home News.
COP31 attendees told not to interfere in Türkiye’s “internal affairs”
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