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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

Shattered climate consensus

FRACKING BAN: UK energy secretary Ed Miliband has announced that the government will bring forward its plans to permanently ban fracking, in a move designed to counter a promise from the hard-right Reform party to restart efforts to introduce the practice, the Guardian said. In the same speech, Miliband said Reform’s plans to scrap clean-energy projects would “betray” young people and future generations, the Press Association reported.

ACT AXE?: Meanwhile, Kemi Badenoch, leader of the Conservatives, pledged to scrap the 2008 Climate Change Act if elected, Bloomberg reported. It noted that the legislation was passed with cross-party support and strengthened by the Conservatives.
‘INSANE’: Badenoch faced a backlash from senior Tory figures, including ex-prime minister Theresa May, who called her pledge a “catastrophic mistake”, said the Financial Times. The newspaper added that the Conservatives were “trailing third in opinion polls”. A wide range of climate scientists also condemned the idea, describing it as “insane”, an “insult” and a “serious regression”.

Around the world

  • CLIMATE CRACKDOWN: The US Department of Energy has told employees in the Office of Energy Efficiency and Renewable Energy to avoid using the term “climate change”, according to the Guardian.
  • FOREST DELAY: Plans for Brazil’s COP30 flagship initiative, the tropical forests forever fund, are “suffer[ing] delays” as officials remain split on key details, Bloomberg said.
  • COP MAY BE ‘SPLIT’: Australia could “split” the hosting of the COP31 climate summit in 2026 under a potential compromise with Turkey, reported the Guardian.
  • DIVINE INTERVENTION: Pope Leo XIV has criticised those who minimise the “increasingly evident” impact of global warming in his first major climate speech, BBC News reported.

€44.5 billion

The  cost of extreme weather and climate change in the EU in the last four years – two-and-a-half times higher than in the decade to 2019, according to a European Environment Agency report covered by the Financial Times.


Latest climate research

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

Captured

Bar chart showing that Great Britain has been fully powered by clean energy for a record 87 hours in 2025 to date

Clean energy has met 100% of Great Britain’s electricity demand for a record 87 hours this year so far, according to new Carbon Brief analysis. This is up from just 2.5 hours in 2021 and 64.5 hours in all of 2024. The longest stretch of time where 100% of electricity demand was met by clean energy stands at 15 hours, from midnight on 25 May 2025 through to 3pm on 26 May, according to the analysis.

Spotlight

‘Overshoot’ unknowns

As the chances of limiting global warming to 1.5C dwindle, there is increasing focus on the prospects for “overshooting” the Paris Agreement target and then bringing temperatures back down by removing CO2 from the atmosphere.

At the first-ever Overshoot Conference in Laxenburg, Austria, Carbon Brief asks experts about the key unknowns around warming “overshoot”.

Sir Prof Jim Skea

Chair of the Intergovernmental Panel on Climate Change (IPCC) and emeritus professor at Imperial College London’s Centre for Environmental Policy

So there are huge knowledge gaps around overshoot and carbon dioxide removal (CDR). As it’s very clear from the themes of this conference, we don’t altogether understand how the Earth would react in taking CO2 out of the atmosphere.

We don’t understand the nature of the irreversibilities and we don’t understand the effectiveness of CDR techniques, which might themselves be influenced by the level of global warming, plus all the equity and sustainability issues surrounding using CDR techniques.

Prof Kristie Ebi

Professor at the University of Washington’s Center for Health and the Global Environment

There are all kinds of questions about adaptation and how to approach effective adaptation. At the moment, adaptation is primarily assuming a continual increase in global mean surface temperature. If there is going to be a peak – and of course, we don’t know what that peak is – then how do you start planning? Do you change your planning?

There are places, for instance when thinking about hard infrastructure, [where overshoot] may result in a change in your plan – because as you come down the backside, maybe the need would be less. For example, when building a bridge taller. And when implementing early warning systems, how do you take into account that there will be a peak and ultimately a decline? There is almost no work in that. I would say that’s one of the critical unknowns.

Dr James Fletcher

Former minister for public service, sustainable development, energy, science and technology for Saint Lucia and negotiator at COP21 in Paris.

The key unknown is where we’re going to land. At what point will we peak [temperatures] before we start going down and how long will we stay in that overshoot period? That is a scary thing. Yes, there will be overshoot, but at what point will that overshoot peak? Are we peaking at 1.6C, 1.7C, 2.1C?

All of these are scary scenarios for small island developing states – anything above 1.5C is scary. Every fraction of a degree matters to us. Where we peak is very important and how long we stay in this overshoot period is equally important. That’s when you start getting into very serious, irreversible impacts and tipping points.

Prof Oliver Geden

Senior fellow and head of the climate policy and politics research cluster at the German Institute for International and Security Affairs and vice-chair of IPCC Working Group III

[A key unknown] is whether countries are really willing to commit to net-negative trajectories. We are assuming, in science, global pathways going net-negative, with hardly any country saying they want to go there. So maybe it is just an academic thought experiment. So we don’t know yet if [overshoot] is even relevant. It is relevant in the sense that if we do, [the] 1.5C [target] stays on the table. But I think the next phase needs to be that countries – or the UNFCCC as a whole – needs to decide what they want to do.

Prof Lavanya Rajamani

Professor of international environmental law at the University of Oxford

I think there are several scientific unknowns, but I would like to focus on the governance unknowns with respect to overshoot. To me, a key governance unknown is the extent to which our current legal and regulatory architecture – across levels of governance, so domestic, regional and international – will actually be responsive to the needs of an overshoot world and the consequences of actually not having regulatory and governance architectures in place to address overshoot.

Watch, read, listen

FUTURE GAZING: The Financial Times examined a “future where China wins the green race”.

‘JUNK CREDITS’: Climate Home News reported on a “forest carbon megaproject” in Zimbabwe that has allegedly “generated millions of junk credits”.
‘SINK OR SWIM’: An extract from a new book on how the world needs to adapt to climate change, by Dr Susannah Fisher, featured in Backchannel.

Coming up

Pick of the jobs

DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.

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The post DeBriefed 3 October 2025: UK political gap on climate widens; Fossil-fuelled Typhoon Ragasa; ‘Overshoot’ unknowns appeared first on Carbon Brief.

DeBriefed 3 October 2025: UK political gap on climate widens; Fossil-fuelled Typhoon Ragasa; ‘Overshoot’ unknowns

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Climate Change

Broken debt system must be fixed to confront future climate shocks

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Mae Buenaventura is the manager of the debt justice programme of the Asian Peoples’ Movement on Debt and Development, a regional alliance of peoples’ movements, community organizations, coalitions, NGOs and networks

A potentially historic shift in public debt governance is set to unfold in Washington DC this week as Global South governments take a collective stand to stop a “silent killer” of development financing.

The first-ever UN-hosted borrowers’ forum will officially be launched on April 15 on the sidelines of the 2026 Spring Meetings of the International Monetary Fund (IMF) and the World Bank. Led by five convening countries – Zambia, Egypt, Nepal, the Maldives and Pakistan – the initiative is one of the key wins of last year’s 4th Financing for Development Conference (FFD4) in Sevilla, Spain.

The forum’s mandate is to establish a platform for borrower countries, supported by a UN secretariat, “to discuss technical issues, share information and experiences in addressing debt challenges, increase access to technical assistance and capacity-building in debt management, coordinate approaches and strengthen borrower countries’ voices in the global debt architecture”.

Instead of facing lenders alone, these countries will now use a UN-backed platform to share technical expertise and coordinate their approach to a global debt system that is fundamentally broken.

Debt grips climate-vulnerable nations

The human cost of the current debt architecture is staggering. According to the UN trade and development agency, UNCTAD, more than 40% of the global population – roughly 3.4 billion people – live in countries where the government is forced to spend more on debt payments than on the health, education and social protection of its citizens.

In so-called low-income countries, governments spend an average of 7.5% of their total budgets on debt service, with interest payments consuming up to 20% of total government revenue in these regions.

The Philippines is a case study in this financial stranglehold. It is part of a global majority forced to watch its public services crumble and infrastructure lag while its wealth is siphoned off to satisfy foreign lenders.

The policy of automatic appropriations – a legacy of the rule of late former President Ferdinand Marcos Sr. – mandates that debt servicing takes precedence over any other public expenditure, effectively placing the demands of lenders above the needs of the Filipino people. Even as it faces a $1.5 trillion regional financing gap to achieve the Sustainable Development Goals (SDGs) by 2030, its hands remain tied by a legal framework that values credit ratings over human lives.

    As a “middle-income country” (MIC), the Philippines is stuck in a frustrating purgatory. It is often deemed “too wealthy” for the G20’s debt-relief framework, yet too poor to absorb global economic shocks. Last year, Finance Undersecretary Joven Balbosa hit the nail on the head when he called for support that goes “beyond the simplistic income categorization” that ignores a country’s actual vulnerabilities.

    Without an inclusive and equitable global debt architecture, nations including the Philippines are left to navigate catastrophic climate risks and economic shocks with zero fiscal breathing space.

    No respite during climate disasters

    The regional evidence of this systemic failure is everywhere. Take Pakistan, which in 2022 was hit by catastrophic flooding that submerged a third of the country and caused billions in losses. Despite this climate-driven disaster, World Bank data shows that Pakistan made payments in 2023 of $11.8 billion for public and publicly guaranteed (PPG) external debt, while its PPG external debt reached $93 billion that same year, surpassing pre-pandemic debt of $87 billion (2020).

    Sri Lanka followed IMF prescriptions throughout 16 lending programs since 1991, only to become the first Asian country this century to default. Its MIC status prevents application for debt relief and restructuring measures. Today, the Sri Lankan people bear the brunt of harsh conditionalities, including raising VAT from 8% to 15%, slashing food and fuel subsidies, and the erosion of hard-earned worker pensions.

    Residents sit in a Rescue 1122 boat as they evacuate from the flooded area, following monsoon rains and rising water levels of the Chenab River, in Qasim Bela village on the outskirts of Multan in Punjab province, Pakistan, September 11, 2025. REUTERS/Quratulain Asim

    Residents sit in a Rescue 1122 boat as they evacuate from the flooded area, following monsoon rains and rising water levels of the Chenab River, in Qasim Bela village on the outskirts of Multan in Punjab province, Pakistan, September 11, 2025. REUTERS/Quratulain Asim

    Currently, the global rules of lending and borrowing are set by a “creditors’ club” composed of the IMF, the World Bank and the Global Sovereign Debt Roundtable it set up, and the Paris Club.

    These institutions measure “debt sustainability” through a narrow lens of a country’s capacity to make timely repayments. They largely ignore internal economic inequalities, gender disparities and the existential threat of climate change.

    Crises should trigger debt service cancellation

    By organising the new borrowers’ forum, the Global South is signalling that the era of passive “standard-setting” by lenders is over.

    The ultimate goal for global civil society and debt justice movements is the establishment of a UN Debt Convention; a democratic, binding and inclusive framework that governs both lenders and borrowers. This mechanism would ensure that debt restructuring and cancellation are sufficient to allow countries to fulfill their international human rights obligations and implement necessary climate actions.

    Green Climate Fund picks locations for five developing country hubs

    To be truly transformative, debt sustainability analyses must align with human rights and sustainable development needs. This means conducting impact assessments – both before and after loans are issued – to identify “illegitimate” debts that do not benefit the public.

    Crucially, we need an automatic debt service cancellation mechanism that triggers during extreme climatic, environmental or health shocks. We also need a binding global debt registry to ensure that every loan is transparent and subject to public scrutiny.

    Whether the borrowers’ forum becomes a true milestone depends on its courage to challenge the status quo. We can no longer allow debt to act as a “silent killer” of our future. It is time to demand a financial system that serves humanity, not just the balance sheets of the powerful.

    The post Broken debt system must be fixed to confront future climate shocks appeared first on Climate Home News.

    Broken debt system must be fixed to confront future climate shocks

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    Climate Change

    Join Greenpeace to save Scott Reef from Woodside’s dirty gas

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    Greenpeace and allies will be protesting outside Woodside’s Annual General Meeting to show the WA and federal governments strong community opposition to Woodside’s proposal to drill for gas at Scott Reef.

    What: Protest outside Woodside Energy’s Annual General Meeting

    When: 8am Thursday 23rd April 2026Where: Kagoshima Park (on the corner of Great Eastern Highway and Bolton Avenue)

    What’s at stake

    Scott Reef is a pristine ocean ecosystem off the north-west coast of Australia.

    It is home to endangered and endemic species, including pygmy blue whales and the dusky sea snake, and a nesting ground for green sea turtles. Scott Reef is a place of extraordinary natural beauty, and a vital marine environment that supports a wide range of marine life.

    What Woodside is proposing

    Dirty fossil fuel corporation, Woodside Energy, is seeking approval to drill more than 50 gas wells underneath and around Scott Reef as part of its Browse project.

    The gas would be extracted and transported to the Burrup Hub, the most polluting fossil fuel project in Australia. This proposal would industrialise the doorstep of Australia’s largest freestanding oceanic reef system – threatening the marine life that relies on it and the climate.

    Why this can’t go ahead

    The WA Environmental Protection Authority has already identified the risks of this project as “unacceptable”, issuing a preliminary rejection.

    Serious concerns include:

    • The risk of an oil spill
    • Impacts on pygmy blue whales
    • Damage to green sea turtle nesting grounds

    These risks are severe, and potentially irreversible. But the decision hasn’t been made yet. The project is still being assessed.

    The Federal Environment Minister is approaching a decision that will determine whether Scott Reef is protected – or vulnerable to decades of industrial gas destruction.

    This is a defining moment.

    Make opposition visible

    Across Australia, people are speaking out to protect Scott Reef and oppose Woodside’s Browse project.

    Showing that opposition is visible, coordinated and growing helps increase pressure on decision-makers ahead of this critical decision.

    Join the protest

    A protest outside Woodside’s AGM is a key public moment to demonstrate opposition and help protect Scott Reef.

    Kagoshima Park (on the corner of Great Eastern Highway and Bolton Avenue)
    🕗 8am, Thursday 23rd April 2026

    Join the protest and help show how many people support protecting Scott Reef before the government makes its decision.

    Join Greenpeace to save Scott Reef from Woodside’s dirty gas

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    Climate Change

    Norway Reopens Annual Whale Hunt Despite Pressure to End Commercial Whaling

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    As demand for whale meat declines at home, Norway exports it to Japan, markets it to tourists and sells it online as dog food.

    Norway reopened its annual whale hunting season earlier this month, continuing a practice most countries abandoned decades ago.

    Norway Reopens Annual Whale Hunt Despite Pressure to End Commercial Whaling

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