Lucie Pinson is the founder and executive director of Paris-based NGO Reclaim Finance.
The abrupt exit of the six biggest US banks from the UN’s Net Zero Banking Alliance (NZBA) is a disturbing sign of the shallowness of these institutions’ professed commitment to acting on climate. It is also a sign of their willingness to preemptively show subservience to the incoming Trump administration.
The question now is whether other banks will follow the example of their US counterparts – especially given the rise of right-wing politicians in Europe and Canada who seek to halt action on climate – or if the remaining banks in the NZBA will now push for more ambition from the alliance, and strengthen their own climate commitments.
Some European bank officials have privately complained in the past that they would like the NZBA guidelines to be stronger but that US members were blocking progress. The European and other banks in the NZBA can now show that they were not just hiding behind the US banks’ obstructionist skirts, and act to increase the NZBA’s ambition.
The recent exodus of the Wall Street banks is hardly a surprise. At least some of them reportedly threatened to leave the NZBA two years ago when red-state officials threatened them with antitrust lawsuits. The banks stayed in then because the NZBA and the Glasgow Financial Alliance for Net Zero (GFANZ), an associated alliance for all types of financial institutions, both clarified that none of their recommendations were compulsory.
What Trump’s second term means for climate action in the US and beyond
The suspension of activities by another net-zero alliance representing big money managers is one more sign of financial firms’ fear of retribution from the Trump administration and emboldened right-wing politicians at the state level.
The Net Zero Asset Manager (NZAM) initiative’s requirements of its members were so weak as to be to mainly symbolic – and it shows how much fossil fuel companies are concerned about their continued access to capital that the politicians they fund will attack even the most milquetoast climate initiative from the finance sector.
Action with or without voluntary body
Regardless of their NZBA membership, the big US banks have never exhibited any real interest in restricting fossil fuel finance. JPMorgan Chase provided US$41 billion in finance for oil and gas and coal companies in 2023, billions more than any other bank. Citi, Bank of America and Wells Fargo were all in the top five global bankers of fossil fuels between 2016 and 2023.
In contrast, some of the largest European banks have shown that another path is possible.
While still falling short of the action required by science to stop fuelling climate change, particularly on LNG (liquefied natural gas), French giants BNP Paribas and Crédit Agricole have both committed to end the facilitation of bond issuances for oil and gas companies. Société Générale has a target to cut its credit exposure to oil and gas producers by 80% by 2030. These three banks have each more than halved their volumes of fossil fuel finance between 2020 and 2023. Additionally, Dutch bank ING will stop funding LNG projects after next year.
LA fires show human cost of climate-driven ‘whiplash’ between wet and dry extremes
Yet none of these robust measures and targets were due to the banks’ membership of the NZBA.
The NZBA does not require its members to restrict financing for oil, gas or coal – not even for those companies that are doing the most to expand fossil fuel production. Members are required to set targets for high-emitting sectors, but although the targets are recommended to be 1.5°C-aligned, the NZBA does nothing to ensure this.
No clear target-setting requirements
A lack of clear requirements on target-setting from the NZBA means that its members have a bewildering array of target types, many of which are deeply flawed and unlikely to lead to real-world emission reductions. The most problematic targets are those based on “financed emissions”.
This methodology attributes the emissions from corporations to their banks using a formula that divides lending exposure by corporate value. The resulting number changes as the market value of the companies in a bank’s sectoral portfolio rises, so the bank’s financed emissions for that sector will fall even if real emissions stay the same.
French bank BPCE, like most other major European banks such as HSBC, Deutsche Bank or UBS, has set only a financed emissions target for the oil and gas sector - in sharp contrast to the banks mentioned above that have set targets to reduce their lending to oil and gas companies.
Provided oil and gas company share prices rise sufficiently, BPCE could meet its target without reducing its finance to these companies, and without these companies cutting their emissions – as Barclays did in 2023, seven years ahead of the target year.
European banks must push NZBA for more ambition
Given their mixed track record so far, it is also possible that European banks could use the US exodus as an excuse to backtrack on their climate commitments, and even for pushing back on recently adopted related regulations. BPCE’s “Vision 2030”, published in June last year, is one example of an important European bank moving backwards on climate.
Some EU business groups have successfully lobbied to reopen key Green Deal legislation. And while we do not yet know how far the changes will go, some banks may join their push to go beyond mere clarifications and simplifications, and dismantle new reporting and due diligence obligations.
To reform climate COPs, we should start with the voting rules
The last of the US banks to announce they were quitting the NZBA was JPMorgan Chase. Their announcement was made on January 7 — the very same day that the catastrophic fires broke out in Los Angeles.
Wall Street may escape the wrath of Trump by appearing not to care about climate change, but financial institutions will not escape the wrath of climate change unless they show the courage to stop financing the expansion of fossil fuels.
The post Wall Street’s faltering on climate action opens up opportunity for European banks appeared first on Climate Home News.
Wall Street’s faltering on climate action opens up opportunity for European banks
Climate Change
The EU should partner with Global South to protect carbon-storing wetlands
Fred Pearce is a freelance author and journalist writing on behalf of Wetlands International Europe.
Everybody knows that saving the Amazon rainforest is critical to our planet’s future. But the Pantanal? Most people have never heard of Brazil’s other ecological treasure, the world’s largest tropical wetland – let alone understood its importance, as home to the highest concentration of wildlife in the Americas, while keeping a billion tonnes of carbon out of the atmosphere, and protecting millions of people downstream from flooding.
Hundreds of millions of euros are spent every year on protecting and restoring the world’s forests. Wetlands are just as important, yet don’t get anything like the same recognition or investment. That, scientists insist, has to change. And Europe can lead the way.
For forests, the EU already provides financial and technical assistance for a series of Forest Partnerships with non-EU countries, as part of its Global Gateway strategy for investing globally in environmentally and socially sustainable infrastructure. Such partnerships operate in Guyana, the Democratic Republic of the Congo, Mongolia and elsewhere.
I believe the time is now right to establish a parallel EU Wetland Partnerships, framing wetlands as a strategic, cost-effective investment offering high financial, environmental and social returns.
Wetlands store a third of global soil carbon
Wetlands come in many shapes and sizes: freshwater peatlands, lakes and river floodplains, as well as coastal salt marshes, mangroves and seagrass beds. They are vital natural infrastructure, maintaining river flows that buffer against extreme weather events such as floods and drought, as well as protecting biodiversity, and providing jobs and economic opportunities, often for the most vulnerable nature-dependent communities.
Wetlands cover just six percent of the land surface, but store a third of global soil carbon – twice the amount in all the world’s forests. Yet they have been disappearing three times faster than forests, with 35 percent lost in the past half century.
Their loss adds to climate change, causes species extinction, triggers mass exoduses of fishers and other people whose livelihoods disappear, and depletes both surface and underground water reserves. Continued wetlands destruction is estimated to contribute five percent of global CO2 emissions – more than aviation and shipping combined.
EU Wetland Partnerships can be critical to unlocking finance to stem the losses and realise the benefits by promoting nature-based economic development, such as sustainable aquaculture, eco-tourism, and forms of wetlands agriculture known as paludiculture, while contributing to climate adaptation by improving the resilience of water resources.
Pantanal faces multiple threats
The Pantanal would be a prime candidate for a flagship project. The vast seasonal floodplain stretching from Brazil into Paraguay and Bolivia, is home to abundant populations of cayman, capybaras, jaguars and more than 600 species of birds. It is vital also for preventing flooding on the River Paraguay for some 2000 kilometres downstream to the Atlantic Ocean.
The Pantanal faces multiple threats, from droughts due to upstream water diversions and climate change, invasions by farmers setting fires and a megaproject to dredge the river and create a shipping corridor through the wetland.
But EU investment to achieve partnership targets agreed with Brazil on restoration, conservation and sustainable management could reinvigorate traditional sustainable land use – including cattle ranching that helps sustain the Pantanal’s open flooded grasslands.


Accounting for wetlands carbon in national emissions targets
Africa, a main focus of the Global Gateway, has abundant potential for early partnership initiatives. They include the Inner Niger Delta in Mali, which sustains some three million inhabitants, but is threatened by upstream dams and conflicts over resources between farmers and herders.
Another is the Sango Bay-Minziro wetland, a region of swamp forests, flooded grasslands and papyrus swamp straddling the border between Uganda and Tanzania on the shores of Lake Victoria, Africa’s largest lake.
The two countries have agreed to cooperate in pushing back against illegal logging, papyrus extraction and farming, and Wetlands International has been working with local governments to encourage community-based initiatives. But an EU partnership could dramatically expand this work, helping sustain the wider ecology of Lake Victoria and the Nile Basin.
Deep in the Amazon, forest protection cash must vie with glitter of illegal gold
National pledges to bring wetlands to the fore of environmental action are proliferating rapidly, especially since the 2023 global climate stocktake at COP28 in the UAE emphasised the importance of accounting for wetlands carbon in national emissions targets.
Since then, more than 50 countries have signed up to the 2023 Freshwater Challenge to protect freshwater ecosystems; more than 40 governments with 40 percent of the world’s mangroves have endorsed the 2022 Mangrove Breakthrough that aims to protect and restore 15 million hectares by 2030; and the newly established Peatland Breakthrough aims at rewetting at least 30 million hectares and halting the loss of undrained peatland by 2030.
Such ambition will almost certainly be endorsed at the 2026 UN Water Conference to be hosted by the UAE and Senegal in December this year. But the key to turning targets into reality on the ground lies in finding the billions of Euros needed to deliver on the ambition. EU Wetlands Partnerships could help seal the deal.
The post The EU should partner with Global South to protect carbon-storing wetlands appeared first on Climate Home News.
The EU should partner with Global South to protect carbon-storing wetlands
Climate Change
DeBriefed 30 January 2026: Fire and ice; US formally exits Paris; Climate image faux pas
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Fire and ice
OZ HEAT: The ongoing heatwave in Australia reached record-high temperatures of almost 50C earlier this week, while authorities “urged caution as three forest fires burned out of control”, reported the Associated Press. Bloomberg said the Australian Open tennis tournament “rescheduled matches and activated extreme-heat protocols”. The Guardian reported that “the climate crisis has increased the frequency and severity of extreme weather events, including heatwaves and bushfires”.
WINTER STORM: Meanwhile, a severe winter storm swept across the south and east of the US and parts of Canada, causing “mass power outages and the cancellation of thousands of flights”, reported the Financial Times. More than 870,000 people across the country were without power and at least seven people died, according to BBC News.
COLD QUESTIONED: As the storm approached, climate-sceptic US president Donald Trump took to social media to ask facetiously: “Whatever happened to global warming???”, according to the Associated Press. There is currently significant debate among scientists about whether human-caused climate change is driving record cold extremes, as Carbon Brief has previously explained.
Around the world
- US EXIT: The US has formally left the Paris Agreement for the second time, one year after Trump announced the intention to exit, according to the Guardian. The New York Times reported that the US is “the only country in the world to abandon the international commitment to slow global warming”.
- WEAK PROPOSAL: Trump officials have delayed the repeal of the “endangerment finding” – a legal opinion that underpins federal climate rules in the US – due to “concerns the proposal is too weak to withstand a court challenge”, according to the Washington Post.
- DISCRIMINATION: A court in the Hague has ruled that the Dutch government “discriminated against people in one of its most vulnerable territories” by not helping them to adapt to climate change, reported the Guardian. The court ordered the Dutch government to set binding targets within 18 months to cut greenhouse gas emissions in line with the Paris Agreement, according to the Associated Press.
- WIND PACT: 10 European countries have agreed a “landmark pact” to “accelerate the rollout of offshore windfarms in the 2030s and build a power grid in the North Sea”, according to the Guardian.
- TRADE DEAL: India and the EU have agreed on the “mother of all trade deals”, which will save up to €4bn in import duty, reported the Hindustan Times. Reuters quoted EU officials saying that the landmark trade deal “will not trigger any changes” to the bloc’s carbon border adjustment mechanism.
- ‘TWO-TIER SYSTEM’: COP30 president André Corrêa do Lago believes that global cooperation should move to a “two-speed system, where new coalitions lead fast, practical action alongside the slower, consensus-based decision-making of the UN process”, according to a letter published on Tuesday, reported Climate Home News.
$2.3tn
The amount invested in “green tech” globally in 2025, marking a new record high, according to Bloomberg.
Latest climate research
- Including carbon emissions from permafrost thaw and fires reduces the remaining carbon budget for limiting warming to 1.5C by 25% | Communications Earth & Environment
- The global population exposed to extreme heat conditions is projected to nearly double if temperatures reach 2C | Nature Sustainability
- Polar bears in Svalbard – the fastest-warming region on Earth – are in better condition than they were a generation ago, as melting sea ice makes seal pups easier to reach | Scientific Reports
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

Sales of electric vehicles (EVs) overtook standard petrol cars in the EU for the first time in December 2025, according to new figures released by the European Automobile Manufacturers’ Association (ACEA) and covered by Carbon Brief. Registrations of “pure” battery EVs reached 217,898 – up 51% year-on-year from December 2024. Meanwhile, sales of standard petrol cars in the bloc fell 19% year-on-year, from 267,834 in December 2024 to 216,492 in December 2025, according to the analysis.
Spotlight
Looking at climate visuals
Carbon Brief’s Ayesha Tandon recently chaired a panel discussion at the launch of a new book focused on the impact of images used by the media to depict climate change.
When asked to describe an image that represents climate change, many people think of polar bears on melting ice or devastating droughts.
But do these common images – often repeated in the media – risk making climate change feel like a far-away problem from people in the global north? And could they perpetuate harmful stereotypes?
These are some of the questions addressed in a new book by Prof Saffron O’Neill, who researches the visual communication of climate change at the University of Exeter.
“The Visual Life of Climate Change” examines the impact of common images used to depict climate change – and how the use of different visuals might help to effect change.
At a launch event for her book in London, a panel of experts – moderated by Carbon Brief’s Ayesha Tandon – discussed some of the takeaways from the book and the “dos and don’ts” of climate imagery.
Power of an image
“This book is about what kind of work images are doing in the world, who has the power and whose voices are being marginalised,” O’Neill told the gathering of journalists and scientists assembled at the Frontline Club in central London for the launch event.
O’Neill opened by presenting a series of climate imagery case studies from her book. This included several examples of images that could be viewed as “disempowering”.
For example, to visualise climate change in small island nations, such as Tuvalu or Fiji, O’Neill said that photographers often “fly in” to capture images of “small children being vulnerable”. She lamented that this narrative “misses the stories about countries like Tuvalu that are really international leaders in climate policy”.
Similarly, images of power-plant smoke stacks, often used in online climate media articles, almost always omit the people that live alongside them, “breathing their pollution”, she said.

During the panel discussion that followed, panellist Dr James Painter – a research associate at the Reuters Institute for the Study of Journalism and senior teaching associate at the University of Oxford’s Environmental Change Institute – highlighted his work on heatwave imagery in the media.
Painter said that “the UK was egregious for its ‘fun in the sun’ imagery” during dangerous heatwaves.
He highlighted a series of images in the Daily Mail in July 2019 depicting people enjoying themselves on beaches or in fountains during an intense heatwave – even as the text of the piece spoke to the negative health impacts of the heatwave.
In contrast, he said his analysis of Indian media revealed “not one single image of ‘fun in the sun’”.
Meanwhile, climate journalist Katherine Dunn asked: “Are we still using and abusing the polar bear?”. O’Neill suggested that polar bear images “are distant in time and space to many people”, but can still be “super engaging” to others – for example, younger audiences.
Panellist Dr Rebecca Swift – senior vice president of creative at Getty images – identified AI-generated images as “the biggest threat that we, in this space, are all having to fight against now”. She expressed concern that we may need to “prove” that images are “actually real”.
However, she argued that AI will not “win” because, “in the end, authentic images, real stories and real people are what we react to”.
When asked if we expect too much from images, O’Neill argued “we can never pin down a social change to one image, but what we can say is that images both shape and reflect the societies that we live in”. She added:
“I don’t think we can ask photos to do the work that we need to do as a society, but they certainly both shape and show us where the future may lie.”
Watch, read, listen
UNSTOPPABLE WILDFIRES: “Funding cuts, conspiracy theories and ‘powder keg’ pine plantations” are making Patagonia’s wildfires “almost impossible to stop”, said the Guardian.
AUDIO SURVEY: Sverige Radio has published “the world’s, probably, longest audio survey” – a six-hour podcast featuring more than 200 people sharing their questions around climate change.
UNDERSTAND CBAM: European thinktank Bruegel released a podcast “all about” the EU’s carbon adjustment border mechanism, which came into force on 1 January.
Coming up
- 1 February: Costa Rican general election
- 3 February: UN Environment Programme Adaptation Fund Climate Innovation Accelerator report launch, Online
- 2-8 February: Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) 12th plenary, Manchester, UK
Pick of the jobs
- Climate Central, climate data scientist | Salary: $85,000-$92,000. Location: Remote (US)
- UN office to the African Union, environmental affairs officer | Salary: Unknown. Location: Addis Ababa, Ethiopia
- Google Deepmind, research scientist in biosphere models | Salary: Unknown. Location: Zurich, Switzerland
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 30 January 2026: Fire and ice; US formally exits Paris; Climate image faux pas appeared first on Carbon Brief.
DeBriefed 30 January 2026: Fire and ice; US formally exits Paris; Climate image faux pas
Climate Change
Factcheck: What it really costs to heat a home in the UK with a heat pump
Electric heat pumps are set to play a key role in the UK’s climate strategy, as well as cutting the nation’s reliance on imported fossil fuels.
Heat pumps took centre-stage in the UK government’s recent “warm homes plan”, which said that they could also help cut household energy bills by “hundreds of pounds” a year.
Similarly, innovation agency Nesta estimates that typical households could cut their annual energy bills nearly £300 a year, by switching from a gas boiler to a heat pump.
Yet there has been widespread media coverage in the Times, Sunday Times, Daily Express, Daily Telegraph and elsewhere of a report claiming that heat pumps are “more expensive” to run.
The report is from the Green Britain Foundation set up by Dale Vince, owner of energy firm Ecotricity, who campaigns against heat pumps and invests in “green gas” as an alternative.
One expert tells Carbon Brief that Vince’s report is based on “flimsy data”, while another says that it “combines a series of worst-case assumptions to present an unduly pessimistic picture”.
This factcheck explains how heat pumps can cut bills, what the latest data shows about potential savings and how this information was left out of the report from Vince’s foundation.
How heat pumps can cut bills
Heat pumps use electricity to move heat – most commonly from outside air – to the inside of a building, in a process that is similar to the way that a fridge keeps its contents cold.
This means that they are highly efficient, adding three or four units of heat to the house for each unit of electricity used. In contrast, a gas boiler will always supply less than one unit of heat from each unit of gas that it burns, because some of the energy is lost during combustion.
This means that heat pumps can keep buildings warm while using three, four or even five times less energy than a gas boiler. This cuts fossil-fuel imports, reducing demand for gas by at least two-fifths, even in the unlikely scenario that all of the electricity they need is gas-fired.
Since UK electricity supplies are now the cleanest they have ever been, heat pumps also cut the carbon emissions associated with staying warm by around 85%, relative to a gas boiler.
Heat pumps are, therefore, the “central” technology for cutting carbon emissions from buildings.
While heat pumps cost more to install than gas boilers, the UK government’s recent “warm homes plan” says that they can help cut energy bills by “hundreds of pounds” per year.
Similarly, Nesta published analysis showing that a typical home could cut its annual energy bill by £280, if it replaces a gas boiler with a heat pump, as shown in the figure below.
Nesta and the government plan say that significantly larger savings are possible if heat pumps are combined with other clean-energy technologies, such as solar and batteries.

Both the government and Nesta’s estimates of bill savings from switching to a heat pump rely on relatively conservative assumptions.
Specifically, the government assumes that a heat pump will deliver 2.8 units of heat for each unit of electricity, on average. This is known as the “seasonal coefficient of performance” (SCoP).
This figure is taken from the government-backed “electrification of heat” trial, which ran during 2020-2022 and showed that heat pumps are suitable for all building types in the UK.
(The Green Britain Foundation report and Vince’s quotes in related coverage repeat a number of heat pump myths, such as the idea that they do not perform well in older properties and require high levels of insulation.)
Nesta assumes a slightly higher SCoP of 3.0, says Madeleine Gabriel, the organisation’s director of sustainable future. (See below for more on what the latest data says about SCoP in recent installations.)
Both the government and Nesta assume that a home with a heat pump would disconnect from the gas grid, meaning that it would no longer need to pay the daily “standing charge” for gas. This currently amounts to a saving of around £130 per year.
Finally, they both consider the impact of a home with a heat pump using a “smart tariff”, where the price of electricity varies according to the time of day.
Such tariffs are now widely available from a variety of energy suppliers and many have been designed specifically for homes that have a heat pump.
Such tariffs significantly reduce the average price for a unit of electricity. Government survey data suggests that around half of heat-pump owners already use such tariffs.
This is important because on the standard rates under the price cap set by energy regulator Ofgem, each unit of electricity costs more than four times as much as a unit of gas.
The ratio between electricity and gas prices is a key determinant of the size and potential for running-cost savings with a heat pump. Countries with a lower electricity-to-gas price ratio consistently see much higher rates of heat-pump adoption.
(Decisions taken by the UK government in its 2025 budget mean that the electricity-to-gas ratio will fall from April, but current forecasts suggest it will remain above four-to-one.)
In contrast, Vince’s report assumes that gas boilers are 90% efficient, whereas data from real homes suggests 85% is more typical. It also assumes that homes with heat pumps remain on the gas grid, paying the standing charge, as well as using only a standard electricity tariff.
Prof Jan Rosenow, energy programme leader at the University of Oxford’s Environmental Change Institute, tells Carbon Brief that Vince’s report uses “worst-case assumptions”. He says:
“This report cherry-picks assumptions to reach a predetermined conclusion. Most notably, it assumes a gas boiler efficiency of 90%, which is significantly higher than real-world performance…Taken together, the analysis combines a series of worst-case assumptions to present an unduly pessimistic picture.”
Similarly, Gabriel tells Carbon Brief that Vince’s report is based on “flimsy data”. She explains:
“Dale Vince has drawn some very strong conclusions about heat pumps from quite flimsy data. Like Dale, we’d also like to see electricity prices come down relative to gas, but we estimate that, from April, even a moderately efficient heat pump on a standard tariff will be cheaper to run than a gas boiler. Paired with a time-of-use tariff, a heat pump could save £280 versus a boiler and adding solar panels and a battery could triple those savings.”
What the latest data shows about bill savings
The efficiency of heat-pump installations is another key factor in the potential bill savings they can deliver and, here, both the government and Vince’s report take a conservative approach.
They rely on the “electrification of heat” trial data to use an efficiency (SCoP) of 2.8 for heat pumps. However, Rosenow says that recent evidence shows that “substantially higher efficiencies are routinely available”, as shown in the figure below.
Detailed, real-time data on hundreds of heat pump systems around the UK is available via the website Heat Pump Monitor, where the average efficiency – a SCoP of 3.9 – is much higher.

Homes with such efficient heat-pump installations would see even larger bill savings than suggested by the government and Nesta estimates.
Academic research suggests that there are simple and easy-to-implement reasons why these systems achieve much higher efficiency levels than in the electrification of heat trial.
Specifically, it shows that many of the systems in the trial have poor software settings, which means they do not operate as efficiently as their heat pump hardware is capable of doing.
The research suggests that heat pump installations in the UK have been getting more and more efficient over time, as engineers become increasingly familiar with the technology.
It indicates that recently installed heat pumps are 64% more efficient than those in early trials.
Notably, the Green Britain Foundation report only refers to the trial data from the electrification of heat study carried out in 2020-22 and the even earlier “renewable heat premium package” (RHPP). This makes a huge difference to the estimated running costs of a heat pump.
Carbon Brief analysis suggests that a typical household could cut its annual energy bills by nearly £200 with a heat pump – even on a standard electricity tariff – if the system has a SCoP of 3.9.
The savings would be even larger on a smart heat-pump tariff.
In contrast, based on the oldest efficiency figures mentioned in the Green Britain Foundation report, a heat pump could increase annual household bills by as much as £200 on a standard tariff.
To support its conclusions, the report also includes the results of a survey of 1,001 heat pump owners, which, among other things, is at odds with government survey data. The report says “66% of respondents report that their homes are more expensive to heat than the previous system”.
There are several reasons to treat these findings with caution. The survey was carried out in July 2025 and some 45% of the heat pumps involved were installed between 2021-23.
This is a period during which energy prices surged as a result of Russia’s invasion of Ukraine and the resulting global energy crisis. Energy bills remain elevated as a result of high gas prices.
The wording of the survey question asks if homes are “more or less expensive to heat than with your previous system” – but makes no mention of these price rises.
The question does not ask homeowners if their bills are higher today, with a heat pump, than they would have been with the household’s previous heating system.
If respondents interpreted the question as asking whether their bills have gone up or down since their heat pump was installed, then their answers will be confounded by the rise in prices overall.
There are a number of other seemingly contradictory aspects of the survey that raise questions about its findings and the strong conclusions in the media coverage of the report.
For example, while only 15% of respondents say it is cheaper to heat their home with a heat pump, 49% say that one of the top three advantages of the system is saving money on energy bills.
In addition, 57% of respondents say they still have a boiler, even though 67% say they received government subsidies for their heat-pump installation. It is a requirement of the government’s boiler upgrade scheme (BUS) grants that homeowners completely remove their boiler.
The government’s own survey of BUS recipients finds that only 13% of respondents say their bills have gone up, whereas 37% say their bills have gone down, another 13% say they have stayed the same and 8% thought that it was too early to say.
The post Factcheck: What it really costs to heat a home in the UK with a heat pump appeared first on Carbon Brief.
Factcheck: What it really costs to heat a home in the UK with a heat pump
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