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Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.

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.

This week

EU delay

NO NDC: The EU has “failed to agree” on a 2035 target for cutting greenhouse gas emissions in time for a climate event taking place alongside the UN general assembly next week, the Financial Times reported. On 24 September, representatives from more than 100 nations will take part in an event where they will announce or offer more details on their 2035 climate plans, known as “nationally determined contributions” (NDCs), Carbon Brief understands. The FT added that, instead of agreeing to a target, EU member states have signed up to a “statement of intent”, which noted that the bloc would aim to cut emissions somewhere in the range of 66.3% and 72.5% by 2035.

DEADLY: Meanwhile, recent analysis showed that more than 16,000 heat deaths that occurred from June to August this year in the EU can be attributed to fossil-fueled global warming, reported the Guardian. Other recent research covered by Euronews indicated that this summer’s extreme weather events will cost the region about €126bn by 2029.

Australia delivers

NEW TARGET: Australia announced an NDC target of cutting emissions to between 62% and 70% below 2005 levels by 2035, reported the Sydney Morning Herald. This is a jump from the current goal of 43% by 2030, providing a “major challenge to the government and the economy”, given that Australia’s emissions have fallen by just 28% over the past two decades, the newspaper added.

RISING THREATS: The country also published its first national climate risk assessment this week, which concluded that 1.5 million Australians living in coastal areas could be at risk from sea level rise by 2050, BBC News reported. The Guardian added that the report looks at 10 “priority hazards”, including flooding and extreme heat, forecasting a rise of 190% in annual heat-related deaths in Sydney if warming reaches 2C.

Around the world

  • FURTHER CHALLENGE: Construction workers announced an indefinite strike in Belém, the Brazilian city hosting COP30 this year, to demand better wages, Folha de São Paulo reported. Reuters reported that the UN had “urge[d] its staff to limit attendance” at COP30, due to concerns over high accommodation costs.
  • CUTTING EMISSIONS: India’s power sector CO2 emissions fell by 1% year-on-year in the first half of 2025, only the second such reduction in 50 years, according to new Carbon Brief analysis. The Times of India, Hindustan Times, Reuters and the Indian Express were among those to cover the analysis. 
  • NEW THREAT: A US Environmental Protection Agency proposal to stop collecting industrial emissions data threatens plans to capture and store CO2, reported the New York Times. Meanwhile, the US National Academies responded to the Trump administration’s misleading claims, with a report calling climate change “beyond scientific dispute”, said Politico
  • ‘REALITY CHECK’: A German government report called for cost efficiency and rapid – but limited – expansion of renewables, Clean Energy Wire reported.
  • SECOND CALL: The International Energy Agency reiterated that the world would not need to invest in new oil and gas projects if demand for the fuels fell in line with the 1.5C limit on global warming, Carbon Brief reported. 

1%

The percentage of global electricity consumption currently taken up by data centres, according to a new Carbon Brief explainer looking into the climate impact of artificial intelligence.


Latest climate research

  • Forest specialist birds, such as the red-cockaded woodpecker and the bearded bellbird, are more diverse and abundant in undisturbed forests | Global Ecology and Biogeography
  • Community-led surveillance expands protection, monitoring and defence of larger areas in Amazon forests | Nature Sustainability
  • Incorporating aerosols can improve the accuracy of climate attribution studies, since aerosols “strongly influence” local heat extremes | Weather and Climate Extremes 

(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)

Captured

DeBriefed_Image_IPCC_Sevent_Assessment_Working_Group_Authors_Global_South

The seventh assessment cycle of the Intergovernmental Panel on Climate Change (IPCC), the world’s leading climate science authority, will include more authors from global south institutions than ever before, according to Carbon Brief analysis. A total of 660 scientists from 90 countries will write the three reports in the next assessment cycle, scheduled for publication in 2029. Some 42% of those authors belong to institutions based in the global south (see chart above), according to Carbon Brief.

Spotlight

Tracing beef in the Brazilian Amazon

In this spotlight, Carbon Brief reports from the Amazonian state of Pará, Brazil, which is implementing new measures to track the impact of beef on deforestation.

The state will host the COP30 climate summit in November.

The Amazonian state of Pará is home to 26m beef cows. The second-largest driver of deforestation in the state is cattle ranching.

Maria Gorete Rios is a small cattle producer in Pará’s municipality of Novo Repartimento. She was the first in Pará to implement individual identification of her cattle.

Of the 78 hectares of her land, 50 hectares are used for cattle and grazing, 10 hectares for her forest reserve and four hectares for producing cocoa and other crops such as cassava, beans, squash and açaí – a fruit native to the Amazon.

A beef cow in Novo Repartimento, Brazil.
A beef cow in Novo Repartimento, Brazil. Credit: Yanine Quiroz

Gorete began identifying her cattle thanks to Pará’s first mandatory cattle traceability programme, announced by the state government at COP28 in 2023. The programme seeks to make the cattle supply chain more transparent and to channel incentives for producers to reduce deforestation.

A beef cow with an ear tag tracking device.
A beef cow with an ear tag tracking device. Credit: Yanine Quiroz

To track her cows, Gorete has given each of them an ear tag tracker, which allows the programme to record which farm each cow was raised on, which slaughterhouse it went to and whether it was raised in illegally deforested areas, Rodrigo Freire, private areas leader for The Nature Conservancy (TNC) in Brazil’s Amazon, explained to Carbon Brief.

To verify that an area was not deforested for cattle production, Brazil’s government has a mandatory registry for rural farmers, which collects information on land use changes over farms, Fábio Medeiros, strategic cattle partnerships director at TNC, told Carbon Brief.

Gorete supports the traceability system because she believes that rural or small producers do not keep proper records of their property. She added:

“With traceability, they will be able to keep track. I think it’s fantastic.”

Further benefits

In addition to traceability, Gorete has begun to combine livestock farming with tree planting, under an “agroforestry” system.

She said that her land had been 100% degraded by industrial livestock farming, but now her planted trees provide shade for her livestock, as well as water availability and habitat for other animals.

Amazonian farmer Maria Gorete Rios.
Amazonian farmer Maria Gorete Rios. Credit: Carbon Brief

Gorete told journalists visiting her farm that diversifying her agricultural production with trees and beekeeping provides her with more income. She added:

“I’m happy where I am. Livestock allows me to pay the highest fees, because livestock is what sustains us. I have açaí, I have cocoa, the basis of my diet. I also have to cultivate the land.”

Medeiros said that, with COP30 coming to the state in November, more incentives are expected for producers to comply with cattle traceability in the region.

Travel to Pará was organised by The Nature Conservancy Brazil, Instituto Clima e Sociedade (iCS) and Nature4Climate.

Watch, read, listen

10 YEARS OF PARIS: Ahead of the 10-year anniversary of the Paris Agreement, climate writer David Wallace-Wells reflected on progress and setbacks for climate action in the New York Times magazine.

COP REFORM: For the Chatham House blog, climate geopolitics expert Bernice Lee addressed the arguments for how the UN climate process should “evolve to move from pledge-making to delivery”.

‘BLACK GOLD’: A Reuters video showed how New York is turning food scraps into nutrient-rich soil, dubbed “black gold”.

Coming up

Pick of the jobs

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 19 September 2025: EU ducks UN climate target; Australia delivers; Tracing beef’s impact on the Amazon appeared first on Carbon Brief.

DeBriefed 19 September 2025: EU ducks UN climate target; Australia delivers; Tracing beef’s impact on the Amazon

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Climate Change

New summit in Colombia seeks to revive stalled UN talks on fossil fuel transition

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A landmark conference hosted by Colombia and the Netherlands will aim to lay the foundations for renewed talks on transitioning away from fossil fuels at COP31, though organisers say it remains unclear what concrete outcomes it will deliver.

The First Conference on the Transition Away from Fossil Fuels will take place in April in the city of Santa Marta, on Colombia’s Caribbean coast, where first-moving countries, states and cities will seek to restart last year’s stalled push for a global roadmap away from coal, oil and gas.

Bastiaan Hassing, head of international climate policy for the Dutch government, told an online briefing last week that the “most obvious” impact of the conference would be for its hosts to report back to the UN climate summit on what was agreed in Santa Marta.

“Ideally, but this is also more complicated, we discuss with each other (at COP) what next steps we could take in the implementation, for instance, of paragraph 28 of the COP decision in Dubai, which talks about the global transition away from fossil fuels,” Hassings said.

He noted that there are many options for how the conference can influence UN talks on implementing the global transition away from fossil fuels, but the exact possibilities would depend on the outcome of the talks. “Rest assured that we will be looking into this,” he added.

At last year’s COP30, a bloc of 80 countries, including small island states, as well as some Latin American, European, and African countries, called for the creation of a roadmap to transition away from fossil fuels.

But major oil and gas producers and consumers blocked the initiative in Belém. As a compromise, Brazil’s COP presidency promised to draft proposals for two voluntary roadmaps: one to end deforestation and another to guide the transition away from fossil fuels.

    Brazil has launched consultations seeking input for those plans, asking governments and stakeholders about technological and economic barriers, climate justice considerations and examples of best practice. Last week, COP30 president André Corrêa do Lago told Brazilian media that he would hold discussions on his roadmap proposal at the Santa Marta conference.

    Colombia’s environment minister Irene Vélez Torres told reporters last week that “this is the moment to be honest about the challenges involved in transitioning away from fossil fuels”.

    “It is not easy. It involves commitments from both the Global North and South. It involves interests and tensions at the subnational level,” she added. “Yet none of this diminishes its urgency or the need to reach agreements at the international multilateral level”.

    Process to end fossil fuels

    Vélez Torres said she hoped the Santa Marta meeting would help establish an ongoing process to advance discussions that often stall in the formal UN negotiations, where decisions are made by consensus and fossil fuel producers resist stronger language.

    “This is the first conference, and we want it to be followed by another. We also want to establish a technical secretariat to sustain these debates,” said Vélez Torres, who added that the initiative would be “articulated with [the] COP30 and COP31” presidencies.

    Colombia has been one of the few fossil fuel-producing countries that pledged to halt all new coal, oil and gas exploration. The move triggered backlash from industry and political opponents – with former president Iván Duque calling the decision “political and economic suicide”. The South American country depends on fossil fuels for about 10% of fiscal revenues and 4% of GDP, according to the International Monetary Fund (IMF).

    Organisers of the Santa Marta conference said they expect between 40 and 80 high-level representatives from governments, both at national and subnational levels. Colombian president Gustavo Petro is expected to participate, and invitations have been extended to California governor Gavin Newsom and Dutch prime minister Rob Jetten.

    Deep divisions persist as plastics treaty talks restart at informal meeting

    No turning back

    The conference comes amid renewed volatility in global energy markets. As the US and Israel’s war in Iran disrupts oil and gas supplies and threatens to cause severe global economic damage, analysts say governments should seek to reduce their dependency on fossil fuels through investments in renewables and energy efficiency.

    The upcoming Santa Marta conference should build momentum to plan that transition away from fossil fuels and signal that “there is no turning back”, said Peter Newell, professor of international relations at the University of Sussex and one of the main proponents of a fossil fuel non-proliferation treaty.

    “Its outcomes, which might include a declaration on key principles and next steps (for the fossil fuel transition), should give renewed vigour to efforts within the UN climate negotiations to drive the agenda forward,” Newell said.

    Because major fossil fuel producers have effectively “vetoed” discussions on a fossil fuel phase-out at COPs, he added, willing countries must move forward independently with initiatives like the Santa Marta conference.

    Andreas Sieber, head of political strategy at the NGO 350.org, agreed that the push away from fossil fuels is “both necessary and economically inevitable”, adding that a conference on phasing out fossil fuels would have been “unthinkable just five years ago”.

    US set to exit UN climate convention in February 2027

    Countries moving forward

    COP30 host Brazil has taken the lead in developing its own national roadmap away from fossil fuels, which President Luiz Inácio Lula da Silva requested his government to draft late last year. The roadmap is expected to be formally developed this year.

    The plan – expected to include a dedicated energy transition fund – was initially due in February but has not yet been made public as ministers continue technical discussions.

    In Europe, governments have also stepped up efforts to curb fossil fuel use following the energy shocks triggered by Russia’s invasion of Ukraine and the conflict in the Middle East.

    Leo Roberts, a fossil fuel transition analyst at the climate think tank E3G, said the recent surge in gas prices linked to the Iran conflict reinforces the case for accelerating the transition to boost energy security and protect people from price shocks.

    “Hopefully, Santa Marta is able to really demonstrate that not only is there momentum at the international sphere through the COP30 roadmap process, but there’s huge momentum away from fossil fuels in the real world,” he said.

    The post New summit in Colombia seeks to revive stalled UN talks on fossil fuel transition appeared first on Climate Home News.

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    Climate Change

    The US’s critical minerals club threatens an equitable clean energy transition

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    Nick Dearden is the director of Global Justice Now.

    The US push for nations to join a club that would coordinate the trade of critical minerals outside China signals a giant shift in Washington’s vision for how to govern the global economy But it will, unfortunately, also hinder the clean energy transition.

    Critical minerals such as lithium, nickel, copper and rare earths are needed to manufacture clean energy technologies such as solar panels, wind turbines and batteries on which the transition from fossil fuels to clean energy depends.

    But these minerals also have applications for a wide range of advanced technologies, not least military equipment and digital infrastructure. In recent years, AI deployment and the build out of data centres have become the primary political justification for mineral extraction.

    No US official mentioned clean energy technologies as they promoted the new minerals club in Washington last month. Instead, the trading bloc aims to break China’s dominance over mineral supply chains and ensure US access to the resources it needs for digital and military sectors.

    Analysis by Global Justice Now found that almost one in five of the 33 minerals that the UK identified as critical in 2024 are not needed to achieve the International Energy Agency’s decarbonisation pathways. A further 15 play only a very small role and only seven require significant production increases for the clean energy transition.

    Prioritise minerals for the energy transition

    The urgency of addressing climate change means we must prioritise the use of minerals to rapidly and equitably wean the global economy off coal, oil and gas while reducing resource overconsumption in the Global North. The US approach could make this prioritisation a lot harder.

    For Washington, this isn’t about addressing climate change, but America’s ever deepening rivalry with China, a renewable energy superpower. In contrast, Donald Trump has called climate change “a hoax” and overseen unprecedented climate deregulation in favour of fossil fuels.

      The minerals trading bloc risks diverting mineral resources towards carbon-intensive military and technology build-up in the US, which is directly at odds with the need to use these resources to manufacture clean energy technologies.

      What’s more, for the green transition to be just, fair and equitable, resource-rich governments must be able to refine and add value to their resources, creating jobs and economic development in the process. But Trump’s trading bloc is intended to tell “partner” countries what role they should play in the global mineral supply chains to best serve US interests.

      Serving US interests rather than clean energy

      Countries with the smallest and least developed economies stand to lose out.

      More than a dozen countries have signed bilateral deals with the Trump administration. The terms of the deals appear to get better the richer a country is.

      At the poorer end is the deal with DRC – an outright piece of imperialism with one-sided obligations that override the country’s mineral sovereignty by giving the US first dibs on a range of strategic mining sites and the energy needed to power these sites.

      ‘America needs you’: US seeks trade alliance to break China’s critical mineral dominance

      In the middle, Malaysia committed to facilitate American involvement in its mineral sector and refrain from banning or imposing quotas on exports of raw minerals to the US. This risks restricting the development of Malaysia’s refining capacities, making value addition harder.

      At the top end is the UK, which has signed a deal that includes a commitment to streamline mineral permitting, but appears more focused on facilitating financial services to members of the trading bloc.

      Wherever countries sit in the pecking order, the agreements signed with the US limit governments’ strategic sovereignty over their resources and stifle their ability to create a more sustainable economy which meets people’s needs.

      Tools for a way forward

      There is some hope, however. Trump’s mineral trading bloc would operate with profoundly different rules than the neoliberal trade deals, which we have become used to.

      Some of its components – like price floors and state ownership – have not been seen in trade deals for a long time. In the right hands, these tools could help governments plan, coordinate and prioritise a globally just green transition and break away from the ‘market knows best’ logic which has long locked poorer countries into low-value exports of raw materials.

      If governments work together, outside the coercive US trade bloc, to adopt some of these tools and policies, they might be able to draw local benefits from their mineral wealth and build a genuinely fair and equitable trade in transition minerals.

      The post The US’s critical minerals club threatens an equitable clean energy transition appeared first on Climate Home News.

      The US’s critical minerals club threatens an equitable clean energy transition

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      Climate Change

      Greenpeace urges governments to defend international law, as evidence suggests breaches by deep sea mining contractors

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      SYDNEY/FIJI, Monday 9 March 2026 — As the International Seabed Authority (ISA) opens its 31st Session today, Greenpeace International is calling on member states to take firm and swift action if breaches by subsidiaries and subcontractors of The Metals Company (TMC) are established. Evidence compiled and submitted to the ISA’s Secretary General suggests that violations of exploration contracts may have occurred.

      Louisa Casson, Campaigner, Greenpeace International, said: “In July, governments at the ISA sent a clear message: rogue companies trying to sidestep international law will face consequences. Turning that promise into action at this meeting is far more important than rushing through a Mining Code designed to appease corporate interests rather than protect the common good. As delegations from around the world gather today, they must unite and confront the US and TMC’s neo-colonial resource grab and make clear that deep sea mining is a reckless gamble humanity cannot afford.”

      The ISA launched an inquiry at its last Council meeting in July 2025, in response to TMC USA seeking unilateral deep sea mining licences from the Trump administration. If the US administration unilaterally allows mining of the international seabed, it would be considered in violation of international law.

      Greenpeace International has compiled and submitted evidence to the ISA Secretary-General, Leticia Carvalho, to support the ongoing inquiry into deep sea mining contractors. This evidence shows that those supporting these unprecedented rogue efforts to start deep sea mining unilaterally via President Trump could be in breach of their obligations with the ISA.

      The analysis focuses on TMC’s subsidiaries — Nauru Ocean Resources Inc (NORI) and Tonga Offshore Mining Ltd (TOML) — as well as Blue Minerals Jamaica (BMJ), a company linked to Dutch-Swiss offshore engineering firm Allseas, one of TMC’s subcontractors and largest shareholders. The information compiled indicates that their activities may violate core contractual obligations under the United Nations Convention on the Law of the Sea (UNCLOS). If these breaches are confirmed, NORI and TOML’s exploration contracts, which expire in July 2026 and January 2027 respectively, the ISA should take action, including considering not renewing the contract.

      Letícia Carvalho has recently publicly advocated for governments to finalise a streamlined deep sea mining code this year and has expressed her own concerns with the calls from 40 governments for a moratorium. At a time when rogue actors are attempting to bypass or weaken the international system, establishing rules and regulations that will allow mining to start could mean falling into the trap of international bullies. A Mining Code would legitimise and drive investment into a flagging industry, supporting rogue actor companies like TMC and weakening deterrence against unilateral mining outside the ISA framework.

      Casson added:Rushing to finalise a Mining Code serves the interests of multinational corporations, not the principles of multilateralism. With what we know now, rules to mine the deep sea cannot coexist with ocean protection. Governments are legally obliged to only authorise deep sea mining if it can demonstrably benefit humanity – and that is non-negotiable. As the long list of scientific, environmental and social concerns with this industry keeps growing, what is needed is a clear political signal that the world will not be intimidated into rushing a mining code by unilateral threats and will instead keep moving towards a moratorium on deep sea mining.” 

      —ENDS—

      Key findings from the full briefing:

      • Following TMC USA’s application to mine the international seabed unilaterally, NORI and TOML have amended their agreements to provide payments to Nauru and Tonga, respectively, if US-authorised commercial mining goes ahead. This sets up their participation in a financial mechanism predicated on mining in contradiction to UNCLOS.
      • NORI and TOML have signed intercompany intellectual property and data-sharing agreements with TMC USA, and the data obtained by NORI and TOML under the ISA exploration contracts has been key to facilitating TMC USA’s application under US national regulations.
      • Just a few individuals hold key decision-making roles across the TMC and all relevant subsidiaries, making claims of independent management ungrounded. NORI, TOML, and TMC USA, while legally distinct, are managed as an integrated corporate group with a single, coordinated strategy under the direct control and strategic direction of TMC.

      Greenpeace urges governments to defend international law, as evidence suggests breaches by deep sea mining contractors

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