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

This week

Heat dome hits North America

100F: Temperatures in New York City reached 100F (38C) for the first time since 2013, as a heat dome “crushed” the eastern side of the US, reported the Associated Press. Baltimore, Philadelphia and Boston all also surpassed three-digit temperatures, it added.

CHIOS FIRES: More than 400 firefighters have been fighting wildfires on the Greek Island of Chios, with evacuation orders in place across the island, reported Reuters. Strong winds and 40C temperatures have made the fire “extremely difficult to control” amidst Greece’s first heatwave of the summer, added BBC News.

HEATWAVES: Japan is currently facing a two-week heatwave, driving up energy demand and keeping power prices high, reported Bloomberg. The Financial Times warned that temperatures could reach dangerous highs as “heat domes” continue to hit the US and Europe. The Daily Mail said the UK Health Security Agency had “activated the five-day alert amid concerns that there could be ‘a rise in deaths, particularly among those ages 65 and over or with health conditions’”.

Bonn climate talks close

BUDGET GROWTH: Reuters reported that more than 200 countries have agreed at the Bonn climate talks to increase the UN Framework Convention on Climate Change’s (UNFCCC) budget by 10% to €81.5m for 2026-27. (Carbon Brief has just published its in-depth summary of the Bonn intersessional.)

JUST TRANSITION: After talks stalled at COP29 last year, activists have welcomed progress on the just transition work programme (JTWP) in Bonn, reported Climate Home News. Campaigners hope the JTWP will lead to the creation of the Belém Action Mechanism at the upcoming COP30 in Brazil, helping to facilitate a just transition on the ground, the article added.

EYES ON COP30: As the two weeks of talks in Bonn came to an end, Bloomberg noted that “it’s still not clear what Brazil will need, or is aiming, to deliver” at COP30 in November. It added that, before the climate summit, most countries still need to submit new “nationally determined contributions”, detailing their plans to help meet the goals of the Paris Agreement, but, currently, less than 30 countries have done so.

Around the world

  • DRILL, BABY, DRILL: US president Donald Trump has urged his government to “drill, baby, drill” as fears grew that the aftermath of attacks on Iran’s nuclear facilities could cause energy prices to spike, reported Reuters.
  • GREENWASHING: EU countries have abandoned anti-greenwashing negotiations, after Italy withdrew its support for the bill, according to Politico.
  • SOUTH AFRICA GRANT: South Africa’s national treasury has announced that the World Bank has granted it a $1.5bn loan to help it transition to a low-carbon economy, reported the Associated Press.
  • MONEYPOINT: Ireland became Europe’s sixth country to end coal power with the closure of its last coal-fired plant at Moneypoint, according to the Irish Examiner.
  • RECORD DEMAND: The Times reported on the Energy Institute’s annual statistical review, which showed global demand for every main type of energy hit a record high in 2024.

$525bn

Between 2000 and 2019, 55 climate-vulnerable economies lost approximately $525bn “because of climate change’s temperature and precipitation patterns”, according to a new report from the United Nations Development Programme.


Latest climate research

  • Sea turtles will likely experience “substantial habitat redistributions” under future climate change scenarios, according to a new study in Science Advances.
  • Warming of the tropical Indian Ocean can increase sea ice concentration in the Arctic during winter in the northern hemisphere, a study published in Climate Dynamics has found.
  • According to a study published in npj Climate and Atmospheric Science, a 2C temperature increase over high-mountain Alpine regions would double the frequency of “extreme summer downpours”, compared to 1991-2020 levels.

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

Captured

Emissions from the electricity sector in the UK have now fallen from being the largest emitter in the UK up until the mid-2010s, to the sixth-largest emitter, according to the Climate Change Committee’s latest progress report. As Carbon Brief’s chart above shows, this dramatic drop means that the electricity sector now produces fewer emissions than surface transport, industry, residential buildings, agriculture and – as of 2024 – aviation.

Spotlight

Gender clash at the climate talks

Negotiations in Bonn have laid bare divergent political and cultural stances as countries dispute gender terminology, reports Carbon Brief.

As technical discussions drew to a close in Bonn, Argentina inserted a footnote into one of the event’s many documents, defining “gender” as “two sexes, male and female”.

This seemingly innocuous move came at the end of a week-long terminology dispute, as nations debated a new “action plan” to centre gender equality in climate action.

Climate change often disproportionately harms women and can also have an outsized impact on other marginalised communities.

However, divergent political and cultural stances meant countries disagreed about the right ways to discuss these issues, ahead of a major decision later this year.

‘Global rollback’

UN climate talks are taking place amid a “global rollback” of rights for women and girls.

In some countries, notably the US and Argentina, this rollback has gone hand-in-hand with a rejection of so-called “gender ideology” and a reversal of trangender rights.

Right-wing populist leaders are also conflating environmental protection with efforts to protect women and marginalised groups.

For example, Argentine president Javier Milei has described “environmentalism”, “feminism” and “gender ideology” as “heads of the same beast” – namely, “wokeism”.

These views have manifested in unexpected places. Negotiations at a UN working group on pollution earlier this month saw the US insist that the output text stated: “Women are biologically female and men are biologically male.”

‘Strong divergence’

While the US was absent from Bonn, Argentina was a prominent voice in the gender sessions. This was despite the nation sending just one negotiator: Eliana Saissac.

Jennifer Bansard, who led the Earth Negotiations Bulletin (ENB) team that reported from within the Bonn talks, told Carbon Brief that Argentina took a “hard stance”:

“There’s definitely strong divergences on gender terminology and broader societal debates are affecting the talks.”

Bonn delegate looking at the vision board for the new gender "action plan" Credit: IISD/ENB | Kiara Worth
Bonn delegate looking at the vision board for the new gender “action plan” Credit: IISD/ENB | Kiara Worth

ENB’s reporting captures these disagreements. Argentina wanted to define “gender” based on a contentious 1998 statute of the international criminal court, referring to “two sexes, male and female”. Paraguay sought a similar definition.

Bansard noted that the divergence was “in both directions”, with some expressing more expansive views. Norway discussed “women and girls in all their diversity”, Canada referred to “gender-diverse people” and Iceland stated that it “[does] not support binary terms”.

Future plans

The talks also saw the Holy See – the governing arm of the Vatican City – make a rare intervention calling for a reference to “sex” rather than ”gender”. Saudi Arabia was among those flatly rejecting the notion of “gender diversity”.

These religiously conservative states have previously aligned in UN talks on gender. At COP29, they were among those reportedly blocking progress on the action plan.

In Bonn, they argued for cultural sensitivity and respect for nations’ differing laws. Claudia Rubio Giraldo, a lawyer who works with the Women and Gender Constituency, told Carbon Brief that she sympathised with this view:

“I think we all come here assuming that we are all on the same ground, understanding certain terminology…but there is a process of bridging that is necessary.”

Nevertheless, Giraldo championed an “intersectional” approach, backed by some nations, that benefits not only women, but also other marginalised groups.

NGOs also warned of parties attempting to roll back existing language on “gender mainstreaming” and “gender responsive” action.

Despite the disagreements, participants noted a constructive tone and agreed on an “informal note” to feed into future negotiations.

Yet, with the gender plan expected to be one of the more tangible outcomes from COP30, civil-society observers were cautious. Francesca Rhodes, a senior policy adviser at CARE International UK, told Carbon Brief:

“These negotiations are taking place in the wider context of a global rollback on rights and inclusive approaches to gender…Progress made must not be sidetracked by these efforts.”

Watch, read, listen

BESTING BIG OIL: The New Statesman had a feature on campaigner Sarah Finch and her victory in the supreme court in the UK last summer, which has “sunk billions of pounds worth of oil and gas projects”.

THIN ICE: Scientists at the University of Cambridge, including Prof Michael Meredith, discussed on The Naked Scientists podcast how the latest polar science is tracking climate change’s impact in Antarctica.
MAMDANI’S ‘GREEN ABUNDANCE’: The Jacobin examined how the focus of New York City mayor frontrunner Zohran Mamdani on lowering the cost of living can serve as a “blueprint” for embedding climate action in everyday life.

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 27 June 2025: Heat domes; Bonn comes to a close; Gender clash in climate talks appeared first on Carbon Brief.

DeBriefed 27 June 2025: Heat domes; Bonn comes to a close; Gender clash in climate talks

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For proof of the energy transition’s resilience, look at what it’s up against

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Al-Karim Govindji is the global head of public affairs for energy systems at DNV, an independent assurance and risk management provider, operating in more than 100 countries.

Optimism that this year may be less eventful than those that have preceded it have already been dealt a big blow – and we’re just weeks into 2026. Events in Venezuela, protests in Iran and a potential diplomatic crisis over Greenland all spell a continuation of the unpredictability that has now become the norm.

As is so often the case, it is impossible to separate energy and the industry that provides it from the geopolitical incidents shaping the future. Increasingly we hear the phrase ‘the past is a foreign country’, but for those working in oil and gas, offshore wind, and everything in between, this sentiment rings truer every day. More than 10 years on from the signing of the Paris Agreement, the sector and the world around it is unrecognisable.

The decade has, to date, been defined by a gritty reality – geopolitical friction, trade barriers and shifting domestic priorities – and amidst policy reversals in major economies, it is tempting to conclude that the transition is stalling.

Truth, however, is so often found in the numbers – and DNV’s Energy Transition Outlook 2025 should act as a tonic for those feeling downhearted about the state of play.

While the transition is becoming more fragmented and slower than required, it is being propelled by a new, powerful logic found at the intersection between national energy security and unbeatable renewable economics.

A diverging global trajectory

The transition is no longer a single, uniform movement; rather, we are seeing a widening “execution gap” between mature technologies and those still finding their feet. Driven by China’s massive industrial scaling, solar PV, onshore wind and battery storage have reached a price point where they are virtually unstoppable.

These variable renewables are projected to account for 32% of global power by 2030, surging to over half of the world’s electricity by 2040. This shift signals the end of coal and gas dominance, with the fossil fuel share of the power sector expected to collapse from 59% today to just 4% by 2060.

    Conversely, technologies that require heavy subsidies or consistent long-term policy, the likes of hydrogen derivatives (ammonia and methanol), floating wind and carbon capture, are struggling to gain traction.

    Our forecast for hydrogen’s share in the 2050 energy mix has been downgraded from 4.8% to 3.5% over the last three years, as large-scale commercialisation for these “hard-to-abate” solutions is pushed back into the 2040s.

    Regional friction and the security paradigm

    Policy volatility remains a significant risk to transition timelines across the globe, most notably in North America. Recently we have seen the US pivot its policy to favour fossil fuel promotion, something that is only likely to increase under the current administration.

    Invariably this creates measurable drag, with our research suggesting the region will emit 500-1,000 Mt more CO₂ annually through 2050 than previously projected.

    China, conversely, continues to shatter energy transition records, installing over half of the world’s solar and 60% of its wind capacity.

    In Europe and Asia, energy policy is increasingly viewed through the lens of sovereignty; renewables are no longer just ‘green’, they are ‘domestic’, ‘indigenous’, ‘homegrown’. They offer a way to reduce reliance on volatile international fuel markets and protect industrial competitiveness.

    Grids and the AI variable

    As we move toward a future where electricity’s share of energy demand doubles to 43% by 2060, we are hitting a physical wall, namely the power grid.

    In Europe, this ‘gridlock’ is already a much-discussed issue and without faster infrastructure expansion, wind and solar deployment will be constrained by 8% and 16% respectively by 2035.

    Comment: To break its coal habit, China should look to California’s progress on batteries

    This pressure is compounded by the rise of Artificial Intelligence (AI). While AI will represent only 3% of global electricity use by 2040, its concentration in North American data centres means it will consume a staggering 12% of the region’s power demand.

    This localized hunger for power threatens to slow the retirement of fossil fuel plants as utilities struggle to meet surging base-load requirements.

    The offshore resurgence

    Despite recent headlines regarding supply chain inflation and project cancellations, the long-term outlook for offshore energy remains robust.

    We anticipate a strong resurgence post-2030 as costs stabilise and supply chains mature, positioning offshore wind as a central pillar of energy-secure systems.

    Governments defend clean energy transition as US snubs renewables agency

    A new trend is also emerging in behind-the-meter offshore power, where hybrid floating platforms that combine wind and solar will power subsea operations and maritime hubs, effectively bypassing grid bottlenecks while decarbonising oil and gas infrastructure.

    2.2C – a reality check

    Global CO₂ emissions are finally expected to have peaked in 2025, but the descent will be gradual.

    On our current path, the 1.5C carbon budget will be exhausted by 2029, leading the world toward 2.2C of warming by the end of the century.

    Still, the transition is not failing – but it is changing shape, moving away from a policy-led “green dream” toward a market-led “industrial reality”.

    For the ocean and energy sectors, the strategy for the next decade is clear. Scale the technologies that are winning today, aggressively unblock the infrastructure bottlenecks of tomorrow, and plan for a future that will, once again, look wholly different.

    The post For proof of the energy transition’s resilience, look at what it’s up against appeared first on Climate Home News.

    For proof of the energy transition’s resilience, look at what it’s up against

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    Post-COP 30 Modeling Shows World Is Far Off Track for Climate Goals

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    A new MIT Global Change Outlook finds current climate policies and economic indicators put the world on track for dangerous warming.

    After yet another international climate summit ended last fall without binding commitments to phase out fossil fuels, a leading global climate model is offering a stark forecast for the decades ahead.

    Post-COP 30 Modeling Shows World Is Far Off Track for Climate Goals

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    IMO head: Shipping decarbonisation “has started” despite green deal delay

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    The head of the United Nations body governing the global shipping industry has said that greenhouse gases from the global shipping industry will fall, whether or not the sector’s “Net Zero Framework” to cut emissions is adopted in October.

    Arsenio Dominguez, secretary-general of the International Maritime Organization, told a new year’s press conference in London on Friday that, even if governments don’t sign up to the framework later this year as planned, the clean-up of the industry responsible for 3% of global emissions will continue.

    “I reiterate my call to industry that the decarbonisation has started. There’s lots of research and development that is ongoing. There’s new plans on alternative fuels like methanol and ammonia that continue to evolve,” he told journalists.

    He said he has not heard any government dispute a set of decarbonisation goals agreed in 2023. These include targets to reduce emissions 20-30% on 2008 levels by 2030 and then to reach net zero emissions “by or around, i.e. close to 2050”.

      Dominguez said the 2030 emissions reduction target could be reached, although a goal for shipping to use at least 5% clean fuels by 2030 would be difficult to meet because their cost will remain high until at least the 2030s. The goals agreed in 2023 also included cutting emissions by 70-80% by 2040.

      In October 2025, a decision on a proposed framework of practical measures to achieve the goals, which aims to incentivise shipowners to go green by taxing polluting ships and subsidising cleaner ones, was postponed by a year after a narrow vote by governments.

      Ahead of that vote, the US threatened governments and their officials with sanctions, tariffs and visa restrictions – and President Donald Trump called the framework a “Green New Scam Tax on Shipping”.

      Dominguez said at Friday’s press conference that he had not received any official complaints about the US’s behaviour at last October’s meeting but – without naming names – he called on nations to be “more respectful” at the IMO. He added that he did not think the US would leave the IMO, saying Washington had engaged constructively on the organisation’s budget and plans.

      EU urged to clarify ETS position

      The European Union – along with Brazil and Pacific island nations – pushed hard for the framework to be adopted in October. Some developing countries were concerned that the EU would retain its charges for polluting ships under its emissions trading scheme (ETS), even if the Net Zero Framework was passed, leading to ships travelling to and from the EU being charged twice.

      This was an uncertainty that the US and Saudi Arabia exploited at the meeting to try and win over wavering developing countries. Most African, Asian and Caribbean nations voted for a delay.

      On Friday, Dominguez called on the EU “to clarify their position on the review of the ETS, in order that as we move forward, we actually don’t have two systems that are going to be basically looking for the same the same goal, the same objective.”

      He said he would continue to speak to EU member states, “to maintain the conversations in here, rather than move forward into fragmentation, because that will have a very detrimental effect in shipping”. “That would really create difficulties for operators, that would increase the cost, and everybody’s going to suffer from it,” he added.

      The IMO’s marine environment protection committee, in which governments discuss climate strategy, will meet in April although the Net Zero Framework is not scheduled to be officially discussed until October.

      The post IMO head: Shipping decarbonisation “has started” despite green deal delay appeared first on Climate Home News.

      IMO head: Shipping decarbonisation “has started” despite green deal delay

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