Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Eve of COP30
MULTILATERAL HOPES A gathering of world leaders kicked off in Belém, Brazil, ahead of the official opening of COP30 next week. The leaders of China, the US and India – the “planet’s three biggest polluters” – are “notably absent” from the two-day leaders summit, reported the Associated Press. Some Latin American leaders “were openly critical” of the US president’s stance on climate change in their speeches at the “diminished” summit, noted the Financial Times.
‘MORAL FAILURE’: Speaking at the world leaders summit, UN secretary-general António Guterres described failing to remain below 1.5C as a “moral failure and deadly negligence”, reported the Guardian. Guterres added: “Every fraction of a degree means more hunger, displacement and loss – especially for those least responsible.” The UN chief’s speech came as the World Meteorological Organization confirmed that 2025 is “on track to be the second or third warmest globally”, noted Reuters.
‘POSITIVE TIPPING POINT’: The Brazilian COP presidency published a “Baku to Belém roadmap” detailing how climate finance for developing nations could be scaled up to $1.3tn a year by 2035, Climate Home News reported. The roadmap was published ahead of the UN climate talks, but will not be formally discussed as part of the negotiations, the outlet added. Read Carbon Brief’s summary of what the roadmap means for climate finance.
FORESTS NOT FOREVER: Brazil also launched its Tropical Forests Forever Facility (TFFF) this week, said Agence France-Presse, designed to help tropical countries protect their forests. Norway has joined France and Brazil in investing in the fund, while Germany will announce its contribution on Friday, noted Bloomberg. The Guardian dubbed the UK’s decision to opt out as “a major letdown”. For more on the TFFF, see Carbon Brief’s explainer.
UN report says world is heading for 2.8C
UNFULFILLING: The United Nations Environment Programme (UNEP) annual “emissions gap” report warned that global temperature rise could be heading for 2.8C this century, if only current policies are fulfilled, the Financial Times reported. The rise could be limited to 2.5C, if unconditional national pledges are met in full – or to 2.3C, if pledges conditional on financial support are put into action, the newspaper noted.
STALLED PROGRESS: The world’s warming trajectory is now “0.3C lower than it was a year ago…meaning new plans announced this year have done little to move the needle”, noted Reuters. Some of this progress will be “cancelled” out, the New York Times added, once the US withdrawal from the Paris Agreement takes effect. See Carbon Brief’s in-depth coverage of the UNEP report.
Around the world
- WATERED DOWN: The EU finally confirmed a “significantly weakened” plan to cut emissions to 90% below 1990 levels by 2040, reported the Financial Times.
- DEADLY DISASTER: The Philippines is in a state of emergency after Typhoon Kalmaegi left at least 114 people dead and nearly 130 missing.
- DROPPING COMMITMENTS: The junior partner in Australia’s opposition Coalition – the Nationals – has formally abandoned a commitment to reach net-zero emissions by 2050, reported ABC News.
- MAYORAL WIN: Zohran Mamdani won New York City’s mayoral election, having “refram[ed] climate policy as a quality-of-life issue”, Inside Climate News reported.
100
The number of proposed indicators to track progress towards the “global goal on adaptation” that will be negotiated at COP, according to Carbon Brief‘s new Q&A.
Latest climate research
- Rising temperatures could affect the muscles that Arctic bumblebees use to generate their “charismatic buzz” | Nature Communications
- The release of CO2 from the the Southern Ocean has been “underestimated” by up to 40% in previous studies | Science
- Outdoor heat stress has led to a 10% decline in labour capacity in “rural to urban migration hotspots” in India | Environmental Research Letters
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
IPCC funding shortfall
Carbon Brief covered the latest meeting of the Intergovernmental Panel on Climate Change (IPCC) in Lima, Peru. Alongside funding from parent organisations the World Meteorological Organization (WMO) and UN Environment Programme, voluntary contributions by countries help pay for the work of the IPCC. The biggest contributors so far in 2025 are Norway, the UNFCCC, Canada and the WMO. The red bars show how US contributions have dropped off during Trump’s two terms in office. Having provided 30% of direct contributions throughout the IPCC’s history, the US has not made a contribution so far this year.
Spotlight
‘With knowledge comes responsibility’: the changing role of climate scientists in a warming world
This week, Carbon Brief speaks to a researcher about the different ways climate scientists are feeling and taking responsibility for the knowledge they hold.
From calling for action in Belém to defending science against attempts to discredit or downplay it, climate scientists are responding to world events in ever-more visible ways.
Dr Friederike Hartz is a research and policy associate at University College London.
For her PhD thesis, carried out at the University of Cambridge, Hartz interviewed 77 experts who participated in IPCC reports, the world’s most authoritative global assessments of climate science coordinated by the UN.
‘You can’t unsee it’
Hartz’s findings show how climate scientists can feel a sense of responsibility, as those who bear the knowledge and evidence of climate change.
Some interviewees felt a sense of “representational responsibility” – motivated by the wish to improve the lives of the vulnerable or underrepresented communities they belong to.
Others expressed a sense of “intergenerational responsibility”, resolving to contribute to a better world for their children and grandchildren.
Hartz called this the “inescapability” of climate knowledge. She told Carbon Brief:
“Once you know, you know. As one of my interviewees shared with me, you simply can’t unsee it. Especially as a scientist, you’re trained to see those things.”
Taking responsibility
Hartz’s research looked at what it means for climate scientists to act on the sense of responsibility they feel, beyond producing the science itself.
Some take part in formal IPCC assessments. Others “have come to accept and further embrace a responsibility for communicating” their knowledge, Hartz noted in her paper.
Beyond the IPCC, some scientists take on additional responsibility for evidence-based “advocacy” or even call for more “activism” in science.
Similarly, on the grounds that “with knowledge comes responsibility”, some have called for scientists to “step beyond their traditional roles” or act as “sentinels” to alert society to threats. Hartz told Carbon Brief:
“This is all part of what I call ‘science enactment’: putting science into action or putting it in the hands of other people who can act on it.”
Navigating what it means to take responsibility is a very individual thing, said Hartz, which speaks to late biologist Stephen Schneider’s “double ethical bind” – the balance between a commitment to the “scientific method” and the “wish to see the world a better place”.
Lived experience
Hartz pointed to research suggesting the traditional view – that engaging in activism or advocacy can damage a scientist’s credibility – may be unwarranted. But there can be other downsides, she noted, including the emotional toll. As one of her interviewees expressed it:
“As scientists, we are not droids…And, so, to say that we are not at all influenced by what is going on in science is not true.”
Hartz suggested that scientists can simultaneously experience feelings of enthusiasm about their work and frustration about its uptake. Or as she noted in her thesis, citing a seminal political science study:
“Knowledge can only speak ‘truth to power’ to the extent that ‘power listens to truth’.”
Watch, read, listen
‘WHITE HOUSE EFFECT’: A Netflix documentary looked at how a “crucial opportunity” to take climate action was “deliberately undermined” during the George HW Bush administration.
‘COP OF TRUTH’: Brazil’s president, Luiz Inácio Lula da Silva, wrote in the Guardian ahead of COP30 about the need to act “with the urgency the climate crisis demands”.
HUMAN STORIES: A video by the Grantham Institute at Imperial College London explored the pivotal moments leading to the historic establishment of a loss and damage fund.
Coming up
- 10 November: UN Climate Change conference (COP30) begins in Belém, Brazil
- 12 November: IEA World Energy Outlook 2025 launch, Paris
- 13 November: Global Carbon Budget annual update released
Pick of the jobs
- Project Drawdown, program manager, research fellow and senior analyst | Salary: Various. Location: Remote
- UK Centre for Ecology and Hydrology, laboratory assistant | £26,206 – £27,808. Location: Lancaster, UK
- Ofwat, Wales environmental policy lead | £57,783 – £72,000. Location: Cardiff, UK
- UNEP, mitigation expert on sand and dust storms | Salary: Not specified. Location: Riyadh, Saudi Arabia
- Conservation International, senior manager, climate & landscape restoration | Salary: Not specified. Location: Acornhoek, South Africa.
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.
The post DeBriefed 7 November 2025: Belém COP begins; UN warns of 1.5C breach; changing roles of climate scientists appeared first on Carbon Brief.
At Climate Home News, we found this year a pretty depressing one to cover, shaped as it was by Donald Trump’s attacks on climate science and action at home and abroad – and rounded off by the UN declaring global warming will break through the key 1.5C limit the world set itself in 2015.
But it wasn’t all bad. Nobody had decided to follow the US out of the Paris Agreement by the time it turned 10 this month. Anti-climate candidates in Canada and Australia, backed by Trump, lost elections convincingly. And 2025 may also have been the year carbon dioxide emissions fell for the first time.
What’s more, our reporting this year saw results in the real world. After we revealed that Chilean doctors believe pollution from copper mines in the northern hub of Calama is causing autism, campaigners sued state-owned mining company Codelco. The case is ongoing.
One of the lawyers representing the campaigners said “when [Climate Home News] revealed our silent suffering and our fight, we felt we had finally been heard and had entered the national conversation thanks to international media coverage. That was the final push to file the lawsuit.”
If you want to fund more impactful reporting like this in 2026, please subscribe and unlock all of our content for just the price of a coffee per week. Or to keep up with our latest coverage, you can sign up for our free newsletter and follow us on LinkedIn, Instagram, BlueSky and Facebook.
Below are nine of our best stories this year and, if that’s not enough, here’s nine more from 2024.
1. Solar squeeze: US tariffs threaten panel production and jobs in Thailand
In the year of trade wars, Trump extended Biden-era tariffs on solar panels from China to neighbouring countries. Nicha Wachpanich spoke to some of those workers who subsequently lost their jobs making panels at Chinese-run factories in Thailand and found that the US levies and bad behaviour by bosses had combined to crush their dreams of a better life.
2. Business-as-usual: Donors pour climate adaptation finance into big infrastructure, neglecting local needs
Trump being Trump, and axing US climate finance, is no reason to let other wealthy donor nations off the hook. We examined the latest spreadsheets for annual adaptation aid and found Japan is counting support for massive infrastructure projects in its figures, despite them having only a dubious role in helping people adapt to climate change.
Our reporter Tanbirul Miraj Ripon visited one such project – the Matarbari port in Bangladesh. He found that the port handles coal and gas imports and has destroyed locals’ homes and livelihoods. Despite this, on paper it represents $363 million in Japanese climate adaptation finance, the biggest single climate resilience project being funded by a wealthy country in 2023.
3. Ethiopia’s bold EV ambitions hit bumps in rural areas
Other nations are trying hard to go green but finding it tricky. This year, Ethiopia hosted the Africa Climate Summit, was selected as the host of COP32 and opened the continent’s biggest hydropower dam.
It plans to use some of this clean power to charge electric vehicles, after banning imports of cars with internal combustion engines (even as the European Union is softening its own 2035 ban on ICEs). While that will reduce Ethiopia’s already tiny emissions and its fossil fuel import bills, it won’t be easy in a nation where only half the population has electricity access, as Solomon Yimer and Vivian Chime reported.
4. Ending poverty and gangs: How Zambia seeks to cash in on the global drive for EVs
Other African governments are trying to cash in on their minerals, which big players like China, the US and increasingly Saudi Arabia want for green technologies and/or making equipment for wars.
Pamela Kapekele went to look at the situation in Zambia’s Copperbelt province – where you can probably guess what they produce! She found that good tax regulations and working conditions will be needed if locals are to see the benefits of surging demand for the metal.
Later in the year, an acid spill from a copper-mine tailings dam that contaminated the country’s main river showed the value of environmental regulation too. Reporting from Nigeria’s lithium and South Africa’s platinum mines also highlighted the challenges of making minerals mining and processing cleaner and fairer for communities.
5. Is the world’s big idea for greener air travel a flight of fancy?
Some sectors – like international aviation and shipping – tend to fall outside the scope of national media, and it’s a gap we’ve aimed to fill. Together with Singapore’s Straits Times, we tracked the supply chain for what the airline industry calls “Sustainable Aviation Fuel” (SAF) and found that virgin and barely used palm oil – which threatens rainforests – is being passed off as waste cooking oil and used to power planes in Europe.
Malaysia is a particular hotspot for this fraud, as government subsidies there make virgin palm oil cheap in the shops – and it can be sold for a higher price as “used” cooking oil, providing a profit motive for flipping it. Our investigation was picked up by the Financial Times, Bloomberg and the Malaysian authorities, who have since launched a crackdown on this kind of fraud.
But with verification of the materials used for SAF relying on just a handful of commercial auditors conducting mainly paper-based checks, airlines currently cannot know for sure if their green jet fuel is actually sustainable. Their advertising to passengers should – but often doesn’t – reflect this uncertainty.
6. Brazil’s environment minister suggests roadmap to end fossil fuels at COP30
Our reporting was often prescient this year. We called it correctly that the US would leave the Paris Agreement but not the UNFCCC, that Argentina would not follow America out of Paris, that Ethiopia rather than Nigeria would be chosen as COP32 host and that petrostates would try to kill a new green shipping framework at the International Maritime Organization.
We are also pretty sure we were the first – at least in English – to pick up on Brazilian Environment Minister Marina Silva’s proposal for COP30 to agree on a roadmap away from fossil fuels, which she aired back in June at London Climate Week. That proposal was pushed by President Lula at the start of COP30, dominated much of the conversation at the summit and will continue to be discussed throughout 2026.
8. PR firm working for Shell wins COP30 media contract
In the summer of 2025, our crack investigative reporter Matteo Civillini got the scoop on how the Brazilian government, via a contract tendered by the UN, was working with Edelman on international media relations for the COP30 climate summit while the global PR giant was simultaneously engaged in promoting Shell’s fossil fuel interests in Brazil.
This story was picked up by a range of other media, and amplified calls for agencies whose clients include fossil fuel firms to be excluded from the climate negotiations. Advocacy group Clean Creatives was inspired by Matteo’s reporting to launch a campaign against Edelman’s COP involvement. That culminated in an open letter from influencers and creators with a combined audience of over 24 million calling for Edelman to be dropped. The drumbeat on this theme is likely to get louder in 2026.
8. “House of cards”: Verra used junk carbon credits to fix Shell’s offsetting scandal
And talking of smoke and mirrors, just when we thought the murky web of carbon offsetting linking oil and gas major Shell to sham rice-farming projects in China couldn’t get any more convoluted, it did exactly that.
By combing through the records of carbon-credit registry Verra – the world’s biggest – Matteo confirmed that nearly a million bogus offsets from 10 disqualified methane reduction projects had been compensated for with the same number of junk credits from another four such projects that were also axed by Verra.
“It’s frankly unbelievable that Verra considers it appropriate to compensate for hot air credits with other hot air credits,” Jonathan Crook, policy lead at Carbon Market Watch, told us. “To pretend this is a satisfactory resolution is both absurd and deeply alarming.”
Verra insists the replacement credits were technically available to plug the gap left by the first batch – even though the second set, too, now need to be swapped out. Shell is keeping its distance, saying it does not manage or operate “the projects in question” despite being earlier involved in the Chinese rice-farming programmes as their “authorised representative”. Mind-boggling indeed!
9. Self-taught mechanics give second life to Jordan’s glut of spent EV batteries
In what was on balance a bad year, we brought you some hope too. A landmark advisory opinion on climate change and human rights from the International Court of Justice in The Hague was stronger than anyone imagined and may open the door to lawsuits against polluting countries and companies in 2026.
Other good news stories included analysts suggesting China’s fossil fuel use could peak this year, the UN’s loss and damage fund launching its first call for proposals, South Korea and Morocco moving to phase out coal and a boom in imports of solar panels to Africa.
Hope came too from ordinary people and their ingenuity – like the untrained Jordanians interviewed by Yamuna Matheswaran, hooking up solar panels to old Tesla batteries, lowering both their electricity bills and their carbon emissions into the bargain.
The post Nine of our best climate stories from 2025 appeared first on Climate Home News.
More than a decade after regulators promised to improve reporting standards for this waste, an Inside Climate News investigation found huge discrepancies in state records.
Fracking’s Forever Problem: Sixth in a series about the gas industry’s radioactive waste.
Tracking Oil and Gas Waste in Pennsylvania Is Still a ‘Logistical Mess’
These breeding grounds for fish are under siege from red turf algae, sea urchins, storm surges, warming waters and climate change.
Shane Farrell has spent the better part of the last three years underwater, diving off the coast of Maine. The University of Maine Ph.D. student and his team at the Bigelow Laboratory for Ocean Sciences are surveying the rapid decline of kelp forests in the warming waters.
Maine’s Once Abundant Kelp Forests Face an Array of Growing Threats
Joby Aviation’s 2027 Vision: Four Electric Air Taxis per Month and Stronger Emission Cuts Amid Advanced Air Mobility Boom
Nine of our best climate stories from 2025
Empire Offshore Progress, New RWE Offshore Farm Approved
Guest post: Why China is still building new coal – and when it might stop
Guest post: Why China is still building new coal – and when it might stop
Spanish-language misinformation on renewable energy spreads online, report shows
-
Greenhouse Gases4 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Climate Change4 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Climate Change2 years ago
Spanish-language misinformation on renewable energy spreads online, report shows
-
Greenhouse Gases2 years ago嘉宾来稿：满足中国增长的用电需求 光伏加储能“比新建煤电更实惠”
-
Climate Change Videos2 years ago
The toxic gas flares fuelling Nigeria’s climate change – BBC News
-
Climate Change2 years ago嘉宾来稿：满足中国增长的用电需求 光伏加储能“比新建煤电更实惠”
-
Carbon Footprint2 years agoUS SEC’s Climate Disclosure Rules Spur Renewed Interest in Carbon Credits
-
Climate Change2 years ago
Why airlines are perfect targets for anti-greenwashing legal action