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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

Crisis responses

OIL SUPPLIES: The International Energy Agency (IEA) warned that oil supply disruptions will worsen in April due to the Iran war, reported CNBC. The outlet added that the IEA was considering another release of strategic oil reserves. Meanwhile, US exports of liquefied natural gas (LNG) reached an “all-time high” in March, with shipments to Asia more than doubling from the previous month, said Reuters.

‘SLOWER GROWTH’: The International Monetary Foundation (IMF) warned that “all roads lead to higher prices and slower growth worldwide” if the war continues to choke oil, gas and fertiliser supplies, reported the Guardian. The IMF said the UK and Italy were “especially exposed by their reliance on gas-fired power”, the newspaper added.

EU PREPARES: The EU is considering “reviving energy-crisis measures” it used at the start of the Ukraine war, including “grid tariffs and taxes on electricity”, according to Reuters. France is considering new actions to electrify its economy and cut dependence on fossil imports, said Le Monde. Elsewhere, BBC News rounded up crisis responses from around the world – including fuel rationing, fuel tax cuts, home working and free public transport.

COAL ‘SHORT-LIVED’: Some countries announced plans to delay coal-plant shutdowns. Italy plans to push back its coal-power phaseout to 2038, according to Reuters. Germany will review whether to reactivate reserve plants, reported Bloomberg. South Korea also extended three plants set to close this year, said the Korea Times. However, a separate Bloomberg comment piece stated that “any shift to burn more coal in 2026 will be short-lived”

Around the world

  • GAS SCRAPPED?: New Zealand’s government cast doubt over plans to build an LNG import terminal as rising gas prices have worsened the economics, said the New Zealand Herald. Separately, plans for Vietnam’s largest LNG power plant may be scrapped in favour of a new renewable energy project, according to Reuters.
  • PHASEOUT SUMMIT: Climate Home News reported that 46 countries – including major oil producers – have confirmed they will attend the fossil-fuel phaseout summit being held in Colombia later this month.
  • INDIAN SUMMER: India is “forecast to experience higher than normal heatwave days through June, raising the risk of power shortages” as the Middle East conflict worsens energy strains, reported Bloomberg.
  • AFGHANISTAN FLOODS: Heavy rainfall and floods across Afghanistan have killed at least 48 people and damaged communities, following years of drought, said Kabul Now.
  • WIND BUYOUTS: In an effort to halt remaining US offshore wind projects, the Trump administration is offering buyouts to developers in exchange for fossil-fuel investments, according to the Financial Times.

66%

The annual increase in forest loss in Indonesia in 2025, according to Indonesian biodiversity thinktank Auriga Nusantara, reported by Reuters.


Latest climate research

  • New research explores “patterns of distributional justice” in the mitigation scenarios used in the IPCC’s sixth assessment | npj Climate Action
  • Antarctic surface melt will expand by more than 10% by 2100, if future greenhouse gas emissions continue to be high | Nature Communications
  • The evolution of the urban heat island effect in Chinese cities is “not unidirectional, but depends on localised urbanisation and greening dynamics” | PNAS Nexus

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

Captured

Carbon Brief analysis found that Great Britain has generated record levels of combined wind and solar output so far this year. The chart above shows monthly wind and solar output, which reached 11 terawatt hours (TWh) in March 2026. At current high gas prices, this saved the UK nearly £1bn worth of gas imports for the month, according to the analysis.

Spotlight

How ‘plug-in’ solar could reduce bills

This week, Carbon Brief analysis finds that plug-in solar panels could save a typical household £1,100 over a 15-year lifetime.

In response to the ongoing energy crisis, the UK government announced on 15 March a package of clean-energy measures to “boost” energy security. Among these was the introduction of “plug-in” solar panels to the UK.

Plug-in panels

Compared to rooftop solar, smaller plug-in solar systems consisting of one to two panels can be easily installed on balconies, in gardens and other outdoor spaces. They can be plugged directly into home sockets without the need for additional wiring, reducing electricity taken from the grid and thereby cutting bills.

Plug-in solar has already taken off in Germany, with official registrations already exceeding 1m installations (the actual number could be up to 4m). Other growing markets include France, Spain, the Netherlands and the US.

Panels could be available in the UK “within months” at retailers, such as Lidl and Sainsbury’s, according to the government. (Many of the products from EcoFlow, one of the main providers of plug-in solar in the UK, are already sold out online.)

The government said it will work with relevant bodies to update electrical regulations to allow the use of plug-in solar. The Institution of Engineering and Technology (IET) has advised homes to get their wiring checked before installing.

Costs and benefits

To assess the potential impact of plug-in solar, Carbon Brief conducted a cost-benefit analysis for an 800-watt (W) installation in a typical two-to-three bedroom home in London. The assumptions are approximate and will vary for different locations and set-ups.

Optimally placed panels – south-facing and tilted at around 40 degrees – would generate around 820 kilowatt hours (kWh) each year in London – at a “load factor” of 12% – according to the EU’s PVGIS database.

Actual output is likely to be lower, due to sub-optimal placement – such as vertically on balconies – as well as orientation and shading.

A report by trade body Solar Power Europe noted these factors could cut 30-60% from optimal output. This analysis assumes a 45% reduction from optimal output.

If a household is able to use 90% of the output – typical for such installations – then the panels would provide 400kWh of electricity each year, enough to meet 15% of typical demand.

This will vary on the household usage patterns, but running appliances such as washing machines during peak daylight hours could improve capture rates.

This could save £110 on electricity bills each year, meaning the upfront cost of around £500 could be paid back within 5 years, according to Carbon Brief’s analysis.

Assuming the panels last 15 years, total net savings over their lifetime could reach £1,100.

These savings assume a fixed unit cost of 27p/kWh, based on predictions for July 2026.

If electricity prices surged to 34p/kWh for a prolonged period – as they did during the 2022 gas price crisis – then annual savings could increase to around £140, further reducing the payback time.

If module costs fall over time as more suppliers enter the market, this could reduce the upfront cost and payback time.

If 3m households take up plug-in solar – comparable to Germany’s current deployment – this would generate 1.2 terawatt hours (TWh), less than 1% of UK demand.

While this would not significantly cut UK emissions overall, it could still save the households more than £330m in total and avoid around two tankers’ worth of imported liquified natural gas (LNG) each year, according to Carbon Brief’s analysis.

Unlocking participation

Aside from its economic benefits, plug-in solar could unlock participation in the clean-energy transition for a wider percentage of the population.

For example, renters make up around one-third of UK households and lack control over the installation of rooftop solar and heat pumps. Plug-in solar would enable them to engage in and benefit from clean energy in their homes.

This spotlight was also published on Carbon Brief’s website.

Watch, read, listen

HEAT HEADS: The BBC’s Climate Question podcast spoke to two women from Sierra Leone and Mexico about their role as “chief heat officers” for their cities.

OYSTER DIE-OFF: A feature in the Guardian explored how warming seas are causing mass die-offs of Japan’s oysters, threatening the shellfish trade.
SOLAR SWITCH: Climate Home News examined how Nigerian homes and businesses are increasingly switching from backup generators to solar power.

Coming up

Pick of the jobs

  • Grantham Institute for Climate Change, research fellow | Salary: £49,017-£57,472. Location: London (hybrid)
  • Stop Climate Chaos Scotland, advocacy lead | Salary: £35,000. Location: Scotland (remote)
  • The 19th News,contract climate reporter | Salary: $50 per hour. Location: US (remote)

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 2 April 2026: Countries ‘revive’ energy-crisis measures | Record UK renewables | Plug-in solar savings appeared first on Carbon Brief.

DeBriefed 2 April 2026: Countries ‘revive’ energy-crisis measures | Record UK renewables | Plug-in solar savings

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Pre-COP draws attention to Pacific’s climate plight and 1.5C goal

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After witnessing and hearing stories of Pacific islands’ vulnerability to climate change, senior climate officials have promised to strengthen efforts to limit global warming to 1.5C, despite an expected overshoot, and to help the region adapt to rising seas and other impacts.

More than 30 world leaders, ministers, climate negotiators and international development bankers travelled to the sinking atoll nation of Tuvalu on Tuesday before attending the pre-COP31 talks in Fiji, where schoolchildren told them about the effects warming-driven droughts, heatwaves and storms are having on their education.

Australia and the Pacific nations hoped to use the pre-COP to reinforce the urgency of tackling climate change to the officials from around 50 countries who travelled to the region. Fiji’s climate minister, Lynda Tabuya, told a closing press conference on Thursday they had wanted to “bring decision-makers to the climate frontlines”.

Many of those decision-makers said they had been moved by what they had seen and heard this week, and their speeches emphasised the importance of limiting global warming to 1.5C above pre-industrial levels, a key goal of the 2015 Paris climate agreement.

    In September, a UN report acknowledged that the 1.5C threshold will be breached but said temperatures could still be brought back down to that level by the end of the century with stepped-up climate action.

    A month ago, Türkiye‘s COP31 President Murat Kurum told a press conference in the northern Turkish city of Trabzon that limiting global warming to 1.5C “does not really look possible”, adding that “around 1.5C, that will be a success”.

    But after seeing the “anxiety” of children and mothers in Tuvalu caused by rising sea levels, Kurum told reporters in Fiji that 1.5C is a “matter of survival – the survival of cultures, history, memories, your homeland, your homes – it’s that important.”

    “The 1.5C target is in jeopardy and we do not have a single minute, a single day to lose,” he added through an interpreter.

    Jacobo Ocharan, head of political strategies at Climate Action Network International, warned that “words of concern will not protect anyone”. “The Pacific has shown the world what is at stake. Now governments must show they are ready to act,” he said. “[COP31 in] Antalya must deliver decisions that change people’s lives for the better.”

    $1.5 billion for 1.5C

    In Fiji, Kurum echoed the call of Australia and Pacific nations for contributions to the fledgling Pacific Resilience Facility (PRF), which aims to use the returns on its investments to fund community climate adaptation projects like water storage, building sea walls and protecting homes from storms. “$1.5 billion for 1.5 degrees will save the Pacific,” he said. “It’s that easy. Life will continue in Tuvalu. Children will be smiling again.”

    COP31 President Murat Kurum (left) speaks at a press conference on Thursday 8 October alongside Lynda Tabuya, Chris Bowen and Simon Stiell

    Sitting next to him, Fiji’s Tabuya said she was “encouraged” by his words. “$1.5 billion for 1.5. We will hold COP 31 to that,” she said. The PRF has been promised just under $200 million so far – including about $15 million pledged by European and Pacific governments at pre-COP – and is aiming for $500 million by COP31. It has a longer-term target of mobilising $1.5 billion in capital.

    After Pacific leaders on Tuesday aired a litany of concerns about the barriers to accessing the global climate finance system, Kurum joined in at Thursday’s press conference. “Justice in climate finance is essential,” he said. “Resources must reach those in need in a timely and accessible manner, not through a lot of red-tape, and we cannot accept that the same countries should always bear the burden.”

    Plan for easier access to climate finance

    Australian climate and energy minister Chris Bowen, who is COP31’s president of negotiations, also lamented that “the countries that need the finance the most get it the least”. He said he would ask governments and multilateral development banks to support an access to finance plan for small island states and the world’s poorest nations, launched by Australia on Thursday.

    The plan says that while there has been progress in making it easier and quicker to obtain international climate funding, “multiple persistent challenges have continued to limit access to climate finance for developing countries”.

    It adds that the amounts available are insufficient to meet climate goals and stresses the need for “grant-based and highly concessional financing”, especially for adaptation and responding to loss and damage. The plan proposes an annual high-level forum on climate finance access to track implementation.

    The pre-COP summit closed with an emotional plea from Fiji’s host minister Tabuya. Fighting back tears before finally succumbing, she asked delegates to “carry something of the Pacific with you”.

    “Remember the people you met, the stories you heard and why we gathered. This pre-COP draws to a close tonight. Our responsibility does not,” she said to applause.

    The post Pre-COP draws attention to Pacific’s climate plight and 1.5C goal appeared first on Climate Home News.

    Pre-COP draws attention to Pacific’s climate plight and 1.5C goal

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    Climate Change

    Australia’s climate credibility tested at Pacific Pre-COP talks, as High Court fossil fuel ruling puts government on notice 

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    NADI, FIJI Thursday 8 October 2026 — As the Pacific Pre-COP talks wrap up and Australia prepares to take the reins of COP31 Negotiations in Türkiye next month, Greenpeace Australia Pacific says the government is on notice over fossil fuel expansion and exports, and must accelerate action to align with a 1.5°C pathway.

    Following yesterday’s landmark High Court ruling that the climate impacts of coal and gas exports must be considered by New South Wales planning authorities, Greenpeace Australia Pacific is calling on the Albanese government to find the “courage, leadership and grit” to chart a new course away from fossil fuels.

    High res images and video from yesterday’s ‘Keep 1.5C Alive’ flotilla in Nadi can be found here

    Speaking from Nadi, Shiva Gounden, Head of Pacific at Greenpeace Australia Pacific, said:
    “The outcomes of this week’s talks are a drop in the ocean given the scale of need, and urgency of the crisis our communities are facing. It is like taking a glass of water to a burning house if we do not urgently act to address the root cause of the existential threat facing Tuvalu, Fiji and all Pacific countries: fossil fuel expansion.

    “The Electrification Pledge must end fossil fuel dependence, not be an end in itself — its ultimate success depends on ensuring electricity comes from renewable sources that displace fossil fuels and align with a 1.5°C pathway. It must be underpinned by justice and backed by finance flowing from polluters to communities.

    “Limiting global warming to 1.5°C is a non-negotiable survival line for humanity and Australia must act. The landmark climate advisory ruling from the ICJ is clear — 1.5°C is the moral, the scientific and the legal limit. Continuing down the fossil fuel path, and failing to align efforts with limiting warming to 1.5°C, is a breach of our international legal obligations, and risks making Australia liable for future reparations from climate-vulnerable nations.”

    Also in Nadi, Dr Simon Bradshaw, COP31 Lead and climate expert at Greenpeace Australia Pacific, said: “The Pacific was never going to be a mere backdrop for Australia in its role as incoming chair of the COP31 climate talks, but where its credibility and commitment to climate leadership would be tested.

    “Here we see communities fighting for their survival and doing everything possible to hold the line on returning warming to 1.5°C. When governments profess to take their concerns seriously, only to then throw more fuel on the fire, the pain and sadness is visceral.

    “This week the High Court of Australia recognised what the Federal Government refuses to — that Australia is responsible for the climate damage of our fossil fuel exports and if governments don’t act, the courts will intervene. The message is simple: this is not someone else’s problem, it is ours.

    “We must now follow other countries in developing a national roadmap away from fossil fuels that ensures a managed wind-down of fossil fuel production, including exports, in line with our legal obligation to help return warming to 1.5°C.”

    ENDS

    Media contact: Kate O’Callaghan in Nadi on +61 406 231 892 (Whatsapp/Signal)

    Australia’s climate credibility tested at Pacific Pre-COP talks, as High Court fossil fuel ruling puts government on notice 

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    New Zealand accused of breaching EU trade deal over climate rollbacks

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    A Dutch NGO has filed the first climate complaint under the European Union’s trade rules, arguing that New Zealand violated the environmental provisions of its free trade agreement with the bloc by weakening its climate regulations.

    The case will test whether binding climate provisions in the EU’s free trade deals can be enforced to hold governments accountable to their climate obligations, experts told Climate Home News.

    The EU-New Zealand free trade agreement, which came into force in 2024, was the first in the world to include legally-binding climate provisions and possible sanctions for violating them, as the EU seeks to use its trade partnerships to advance greater environmental protection.

    Under the deal, both parties committed not to weaken their environmental law to promote trade or investment and to “refrain from any action or omission that materially defeats the object and purpose of the Paris Agreement”.