The UK government has released its long-awaited “warm homes plan”, detailing support to help people install electric heat pumps, rooftop solar panels and insulation in their homes.
It says up to 5m households could benefit from £15bn of grants and loans earmarked by the government for these upgrades by 2030.
Electrified heating and energy-efficient homes are vital for the UK’s net-zero goals, but the plan also stresses that these measures will cut people’s bills by “hundreds of pounds” a year.
The plan shifts efforts to tackle fuel poverty away from a “fabric-first” approach that starts with insulation, towards the use of electric technologies to lower bills and emissions.
Much of the funding will support people buying heat pumps, but the government has still significantly scaled back its expectations for heat-pump installations in the coming years.
Beyond new funding, there are also new efficiency standards for landlords that could result in nearly 3m rental properties being upgraded over the next four years.
In addition, the government has set out its ambition for scaling up “heat networks”, where many homes and offices are served by communal heating systems.
Carbon Brief has identified the key policies laid out in the warm homes plan, as well as what they mean for the UK’s climate targets and energy bills.
- Why do homes matter for UK climate goals?
- What is the warm homes plan?
- What is included in the warm homes plan?
- What does the warm homes plan mean for energy bills?
- What has been the reaction to the plan?
Why do homes matter for UK climate goals?
Buildings are the second-largest source of emissions in the UK, after transport. This is largely due to the gas boilers that keep around 85% of UK homes warm.
Residential buildings produced 52.8m tonnes of carbon dioxide equivalent (MtCO2e) in 2024, around 14% of the nation’s total, according to the latest government figures.
Fossil-fuel heating is by far the largest contributor to building emissions. There are roughly 24m gas boilers and 1.4m oil boilers on the island of Great Britain, according to the National Energy System Operator (NESO).
This has left the UK particularly exposed – along with its gas-reliant power system – to the impact of the global energy crisis, which caused gas prices – and energy bills – to soar.
At the same time, the UK’s old housing stock is often described as among the least energy efficient in Europe. A third of UK households live in “poorly insulated homes” and cannot afford to make improvements, according to University College London research.
This situation leads to more energy being wasted, meaning higher bills and more emissions.
Given their contribution to UK emissions, buildings are “expected to be central” in the nation’s near-term climate goals, delivering 20% of the cuts required to achieve the UK’s 2030 target, according to government adviser the Climate Change Committee (CCC).
(Residential buildings account for roughly 70% of the emissions in the buildings sector, with the rest coming from commercial and public-sector buildings.)
Over recent years, Conservative and Labour governments have announced various measures to cut emissions from homes, including schemes to support people buying electric heat pumps and retrofitting their homes.
However, implementation has been slow. While heat-pump installations have increased, they are not on track to meet the target set by the previous government of 600,000 a year by 2028.
Meanwhile, successive schemes to help households install loft and wall insulation have been launched and then abandoned, meaning installation rates have been slow.
At the same time, the main government-backed scheme designed to lift homes out of fuel poverty, the “energy company obligation” (ECO), has been mired in controversy over low standards, botched installations and – according to a parliamentary inquiry – even fraud.
(The government announced at the latest budget that it was scrapping ECO.)
The CCC noted in its most recent progress report to parliament that “falling behind on buildings decarbonisation will have severe implications for longer-term decarbonisation”.
What is the warm homes plan?
The warm homes plan was part of the Labour party’s election-winning manifesto in 2024, sold at the time as a way to “cut bills for families” through insulation, solar and heat pumps, while creating “tens of thousands of good jobs” and lifting “millions out of fuel poverty”.
It replaces ECO, introduces new support for clean technologies and wraps together various other ongoing policies, such as the “boiler upgrade scheme” (BUS) grants for heat pumps.
The warm homes plan was officially announced by the government in November 2024, stating that up to 300,000 households would benefit from home upgrades in the coming year. However, the plan itself was repeatedly delayed.
In the spending review in June 2025, the government confirmed the £13.2bn in funding for the scheme pledged in the Labour manifesto, covering spending between 2025-26 and 2029-30.
The government said this investment would help cut bills by up to £600 per household through efficiency measures and clean technologies such as heat pumps, solar panels and batteries.
After scrapping ECO at the 2025 budget, the treasury earmarked an extra £1.5bn of funding for the warm homes plan over five years. This is less than the £1bn annual budget for ECO, which was funded via energy bills, but is expected to have lower administrative overheads.
In the foreword to the new plan, secretary of state Ed Miliband says that it will deliver the “biggest public investment in home upgrades in British history”. He adds:
“The warm homes plan [will]…cut bills, tackle fuel poverty, create good jobs and get us off the rollercoaster of international fossil fuel markets.”
Miliband argues in his foreword that the plan will “spread the benefits” of technologies such as solar to households that would otherwise be unable to afford them. He writes: “This historic investment will help millions seize the benefits of electrification.” Miliband concludes:
“This is a landmark plan to make the British people better off, secure our energy independence and tackle the climate crisis.”
What is included in the warm homes plan?
The warm homes plan sets out £15bn of investment over the course of the current parliament to drive uptake of low-carbon technologies and upgrade “up to” 5m homes.
A key focus of the plan is energy security and cost savings for UK households.
The government says its plan will “prioritise” investment in electrification measures, such as heat pumps, solar panels and battery storage. This is where most of the funding is targeted.
However, it also includes new energy-efficiency standards to encourage landlords to improve conditions for renters.
Some policies were notable due to their absence, such as the lack of a target to end gas boiler sales. The plan also states that, while it will consult on the use of hydrogen in heating homes, this is “not yet a proven technology” and therefore any future role would be “limited”.
New funding
Technologies such as heat pumps and rooftop solar panels are essential for the UK to achieve its net-zero goals, but they carry significant up-front costs for households. Plans for expanding their uptake therefore rely on government support.
Following the end of ECO in March, the warm homes plan will help fill the gap in funding for energy-efficiency measures that it is expected to leave.
As the chart below shows, a range of new measures under the warm homes plan – including a mix of grants and loans – as well as more funding for existing schemes, leads to an increase in support out to 2030.
One third of the total funding – £5bn in total – is aimed at low-income households, including social housing tenants. This money will be delivered in the form of grants that could cover the full cost of upgrades.
The plan highlights solar panels, batteries and “cost-effective insulation” for the least energy-efficient homes as priority measures for this funding, with a view to lowering bills.
There is also £2.7bn for the existing boiler upgrade scheme, which will see its annual allocation increase gradually from £295m in 2025-26 to £709m in 2029-30.
This is the government’s measure to encourage better-off “able to pay” households to buy heat pumps, with grants of £7,500 towards the cost of replacing a gas or oil-fired boiler. For the first time, there will also be new £2,500 grants from the scheme for air-to-air heat pumps (See: Heat pumps.)
A key new measure in the plan is £2bn for low- and zero-interest consumer loans, to help with the cost of various home upgrades, including solar panels, batteries and heat pumps.
Previous efforts to support home upgrades with loans have not been successful. However, innovation agency Nesta says the government’s new scheme could play a central role, with the potential for households buying heat pumps to save hundreds of pounds a year, compared to purchases made using regular loans.
The remaining funding over the next four years includes money assigned to heat networks and devolved administrations in Scotland, Wales and Northern Ireland, which are responsible for their own plans to tackle fuel poverty and household emissions.
Heat pumps
Heat pumps are described in the plan as the “best and cheapest form of electrified heating for the majority of our homes”.
The government’s goal is for heat pumps to “increasingly become the desirable and natural choice” for those replacing old boilers. At the same time, it says that new home standards will ensure that new-build homes have low-carbon heating systems installed by default.
Despite this, the warm homes plan scales back the previous government’s target for heat-pump installations in the coming years, reflecting the relatively slow increase in heat-pump sales. It also does not include a set date to end the sale of gas boilers.
The plan’s central target is for 450,000 heat pumps to be installed annually by 2030, including 200,000 in new-build homes and 250,000 in existing homes.
This is significantly lower than the previous target – originally set in 2021 under Boris Johnson’s Conservative government – to install 600,000 heat pumps annually by 2028.
Meeting that target would have meant installations increasing seven-fold in just four years, between 2024 and 2028. Now, installations only need to increase five-fold in six years.
As the chart below shows, the new target is also considerably lower than the heat-pump installation rate set out in the CCC’s central net-zero pathway. That involved 450,000 installations in existing homes alone by 2030 – excluding new-build properties.
Some experts and campaigners questioned how the UK would remain on track for its legally binding climate goals given this scaled-back rate of heat-pump installations.
Additionally, Adam Bell, policy director at the thinktank Stonehaven, writes on LinkedIn that the “headline numbers for heat pump installs do not stack up”.
Heat pumps in existing homes are set to be supported primarily via the boiler upgrade scheme and – according to Bell – there is not enough funding for the 250,000 installations that are planned, despite an increased budget.
The government’s plan relies in part on the up-front costs of heat pump installation “fall[ing] significantly”. According to Bell, it may be that the government will reduce the size of boiler upgrade scheme grants in the future, hoping that costs will fall sufficiently.
Alternatively, the government may rely on driving uptake through its planned low-cost loans and the clean heat market mechanism, which requires heating-system suppliers to sell a growing share of heat pumps.
Rooftop solar
Rooftop solar panels are highlighted in the plan as “central to cutting energy bills”, by allowing households to generate their own electricity to power their homes and sell it back to the grid.
At the same time, rooftop solar is expected to make a “significant contribution” to the government’s target of hitting 45-47 gigawatts (GW) of solar capacity by 2030.
As it stands, there is roughly 5.2GW of solar capacity on residential rooftops.
Taken together, the government says the grants and loans set out in the warm homes plan could triple the number of homes with rooftop solar from 1.6m to 4.6m by 2030.
It says that this is “in addition” to homes that decide to install rooftop solar independently.
Efficiency standards
The warm homes plan says that the government will publish its “future homes standard” for new-build properties, alongside necessary regulations, in the first quarter of 2026.
On the same day, the government also published its intention to reform “energy performance certificates” (EPCs), the ratings that are supposed to inform prospective buyers and renters about how much their new homes will cost to keep warm.
The current approach to measuring performance for EPCs is “unreliable” and thought to inadvertently discourage heat pumps. It has faced long-standing calls for reform.
As well as funding low-carbon technologies, the warm homes plan says it is “standing up for renters” with new energy-efficiency standards for privately and socially rented homes.
Currently, private renters – who rely on landlords to invest in home improvements – are the most likely to experience fuel poverty and to live in cold, damp homes.
Landlords will now need to upgrade their properties to meet EPC ratings B and C across two new-style EPC metrics by October 2030. There are “reasonable exemptions” to this rule that will limit the amount landlords have to spend per property to £10,000.
In total, the government expects “up to” 1.6m homes in the private-rental sector to benefit from these improvements and “up to” 1.3m social-rent homes.
These new efficiency standards therefore cover three-fifths of the “up to” 5m homes helped by the plan.
The government also published a separate fuel poverty strategy for England.
Heat networks
The warm homes plan sets out a new target to more than double the amount of heating provided using low-carbon heat networks – up to 7% of England’s heating demand by 2035 and a fifth by 2050.
This involves an injection of £1.1bn for heat networks, including £195m per year out to 2030 via the green heat network fund, as well as “mobilising” the National Wealth Fund.
The plan explains that this will primarily benefit urban centres, noting that heat networks are “well suited” to serving large, multi-occupancy buildings and those with limited space.
Alongside the plan, the government published a series of technical standards for heat networks, including for consumer protection.
What does the warm homes plan mean for energy bills?
The warm homes plan could save households “hundreds on energy bills” for those whose homes are upgraded, according to the UK government.
This is in addition to two changes announced in the budget in 2025, which are expected to cut energy bills for all homes by an average of £150 a year.
This included the decisions to bring ECO to an end when the current programme of work wraps up at the end of the financial year and for the treasury to cover three-quarters of the cost of the “renewables obligation” (RO) for three years from April 2026.
Beyond this, households that take advantage of the measures outlined in the plan can expect their energy bills to fall by varying amounts, the government says.
The warm homes plan includes a number of case studies that detail how upgrades could impact energy bills for a range of households. For example, it notes that a social-rented two-bedroom semi-detached home that got insulation and solar panels could save £350 annually.
An owner-occupier three-bedroom home could save £450 annually if it gets solar panels and a battery through consumer loans offered under the warm homes plan, it adds.
Similar analysis published by Nesta says that a typical household that invests in home upgrades under the plan could save £1,000 a year on its energy bill.
It finds that a household with a heat pump, solar panels and a battery, which uses a solar and “time of use tariff”, could see its annual energy bill fall by as much as £1,000 compared with continuing to use a gas boiler, from around £1,670 per year to £670, as shown in the chart below.
Ahead of the plan being published, there were rumours of further “rebalancing” energy bills to bring down the cost of electricity relative to gas. However, this idea failed to come to fruition in the warm homes plan.
This would have involved reducing or removing some or all of the policy costs currently funded via electricity bills, by shifting them onto gas bills or into general taxation.
This would have made it relatively cheaper to use electric technologies such as heat pumps, acting as a further incentive to adopt them.
Nesta highlights that in the absence of further action with regard to policy costs, the electricity-to-gas price ratio is likely to stay at around 4.1 from April 2026.
What has been the reaction to the plan?
Many of the commitments in the warm homes plan were welcomed by a broad range of energy industry experts, union representatives and thinktanks.
Greg Jackson, the founder of Octopus Energy, described it as a “really important step forward”, adding:
“Electrifying homes is the best way to cut bills for good and escape the yoyo of fossil fuel costs.”
Dhara Vyas, chief executive of the trade body Energy UK, said the government’s commitment to spend £15bn on upgrading home heating was “substantial” and would “provide certainty to investors and businesses in the energy market”.
On LinkedIn, Camilla Born, head of the campaign group Electrify Britain, said the plan was a “good step towards backing electrification as the future of Britain, but it must go hand in hand with bringing down the costs of electricity”.
However, right-leaning publications and politicians were critical of the plan, focusing on how a proportion of solar panels sold in the UK are manufactured in China.
According to BBC News, two-thirds (68%) of the solar panels imported to the UK came from China in 2024.
In an analysis of the plan, the Guardian’s environment editor Fiona Harvey and energy correspondent Jillian Ambrose argued that the strategy is “all carrot and no stick”, given that the “longstanding proposal” to ban the installation of gas boilers beyond 2035 has been “quietly dropped”.
Christopher Hammond, chief executive of UK100, a cross-party network of more than 120 local authorities, welcomed the plan, but urged the government to extend it to include public buildings.
The government’s £3.5bn public sector decarbonisation scheme, which aimed to electrify schools, hospitals and council buildings, ended in June 2025 and no replacement has been announced, according to the network.
The post Q&A: What UK’s ‘warm homes plan’ means for climate change and energy bills appeared first on Carbon Brief.
Q&A: What UK’s ‘warm homes plan’ means for climate change and energy bills
Climate Change
China Briefing 28 May 2026: Deadly rains | China pushes back | Examining China’s carbon intensity metric
Welcome to Carbon Brief’s China Briefing.
China Briefing handpicks and explains the most important climate and energy stories from China over the past fortnight. Subscribe for free here.
Key developments
Several dead as record rainfall hit several provinces
DEADLY DOWNPOUR: Multiple rounds of heavy rainfall have hit central and eastern China, with Agence France-Presse reporting that at least 25 people were killed in the first round, which affected provinces including Guangxi, Guizhou, Hunan and Hubei. Shortly afterwards, nine people died in south-western Chongqing province, reported finance news outlet Caixin, after receiving “nearly 300mm of rain in just two hours, a deluge local residents described as the worst in more than 60 years”. The government has dedicated 280m yuan ($41m) to support affected provinces, reported state news agency Xinhua. The Communist party-backed newspaper China Youth Daily reported that more than 20 provinces have been affected so far, with rains expected to continue throughout June.
CLIMATE CONTRIBUTION: National rainfall over 11-23 May was 46% higher than the seasonal norm, said Xinhua. Nearly 500 weather stations nationwide have logged record rainfall levels, according to state-sponsored newspaper Guangming Daily. The rains were described as “quite unusual”, according to Xinhua, with the National Climate Centre’s chief forecaster Gao Hui telling the agency that the heavy rains were caused by a combination of factors. These included a convergence of several climate systems carrying in strong flows of moisture from nearby marine regions, as well as “rapid global warming, compounded by a fast-developing El Niño” increasing the atmosphere’s moisture content.
The EU ‘overcapacity’ debate
‘CONCERNS’ REGISTERED: The EU will debate proposals in June to “step up efforts” to reduce economic reliance on China and protect its industries, including “safeguard investigations” for at-risk sectors and an “overcapacity instrument”, reported Politico. Finance news outlet Yicai said China in turn has registered its “concerns” with the World Trade Organization over the EU’s Industrial Accelerator Act (IAA), which includes local content requirements for industries including clean-energy technologies.
PATIENCE ‘WEARING THIN’: A report by the Hong Kong-based South China Morning Post cited “some observers” as saying a trade war characterised by the EU “clos[ing] its market down to Chinese imports” may be the “only” way in which the EU can get China to fully engage with its concerns. A China Daily editorial states that China’s “patience” over the EU’s “politicisation and over-securitisation of trade and economic issues” is “wearing thin”. An editorial in the state-supporting Global Times says “erecting higher trade barriers” against Chinese cleantech is “clearly unwise”, given the Iran conflict, adding: “China will never sit idly by while the EU unreasonably suppresses Chinese companies.”
MISSING AGREEMENTS: Meanwhile, Bloomberg covered US president Donald Trump’s claims that his counterpart Xi Jinping “likes the idea of buying more US oil”, following Trump’s state visit to China. [None of the Chinese government readouts or press briefings covering trade outcomes have mentioned any energy agreements so far.] Similarly, the “Kremlin said…a general understanding” had been reached on the Power of Siberia 2 gas pipeline following Russian president Vladimir Putin’s visit to China, according to Reuters, but that there was “no mention of any oil and gas deals among documents signed” during his meeting with Xi. A joint statement published by China’s Ministry of Foreign Affairs said China and Russia will “deepen” cooperation around oil and gas, coal, nuclear and renewable energy, adding that they will “strengthen cooperation in addressing climate change”.
Coal-power generation rose in April
‘INFLEXIBLE’ COAL: Thermal power generation in China “grew for a fourth straight month in April”, rising 3.1% year-on-year in the face of reduced wind and nuclear generation, reported Bloomberg. “Unfavorable weather” was not the only reason for weaker clean-energy generation, wrote Centre for Research on Energy and Clean Air lead analyst Lauri Myllyvirta on Bluesky, with “grid congestion due to inflexible operation of coal plants and transmission lines” also a factor. Separately, research by Global Energy Monitor found that Chinese coal-plant developers “requested approval for 51 gigawatts (GW)” of new capacity in January-March 2026, reported Bloomberg.
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SOLAR SLOWDOWN: Total power demand grew 6% year-on-year in April, according to Xinhua. Total capacity rose 14% by the end of April, reported energy news outlet International Energy Net, with China’s total solar-power capacity now exceeding 1,250 gigawatts (GW) and wind reaching 661GW, while thermal capacity rose 7% to 1,556GW. However, the growth rate of new solar installations continued to fall for a “fourth straight month”, said Bloomberg, with 9.5GW added in April 2026 compared to 45.2GW the year before.
POLICY EXPANDS: Meanwhile, the government has expanded its renewable power “direct connection” policy to allow clean-energy generators to supply multiple users directly “through dedicated [power] lines”, rather than just one consumer, reported finance news outlet Caixin. It cited a government official saying the policy is “intended to support cleaner energy use in industrial parks…and other large energy-consuming facilities”, which comprise more than two-thirds of total energy demand. Economic news outlet Jiemian quotes an expert saying the policy enables both “lower electricity prices” and “higher utilisation rates” for renewables, “reducing curtailment rates”.
More China news
- ‘SOLIDARITY AND RESOLVE’: China voted in favour of a UN general assembly resolution to back the International Court of Justice’s (ICJ) landmark 2025 opinion on states’ legal obligations to tackle climate change. The Chinese embassy to Vanuatu said on Facebook this displayed its “solidarity and collective resolve”.
- BOND DISCLOSURE: According to a disclosure report by China’s finance ministry, the country raised 6bn yuan in “green sovereign bonds” in 2025, said finance news outlet EastMoney ($884m), of which 700m ($103m) was spent on clean-energy retrofitting.
- WAR ON SAND: The central government has pledged to “improve” and expand its ecological compensation mechanism, including to now provide compensation for building solar farms in desertified areas, said power news outlet BJX News.
- SPACE-BASED SOLAR: Chinese scientists have begun “initial experiments” in a project to “collect [solar] energy in orbit and beam it wirelessly to Earth”, said PV Magazine.
- MINERAL STRATEGY: China has pledged to “accelerate the construction of strategic mineral-reserve sites”, reported Reuters. It will also work with the US on “reasonable” concerns around its rare-earth export controls, Reuters also reported.
Captured
Hydrogen in China continues to be mostly produced from coal, according to a National Energy Administration report. A new Carbon Brief article explored how a series of new policies in China could help scale hydrogen, particularly “green” hydrogen made with renewable power.
Spotlight
China’s new carbon metric leaves Germany-sized gap in its emissions
A major change in the way that China measures its core climate goal has effectively halved the growth in the country’s carbon dioxide (CO2) emissions over the past five years.
The revised measure of “carbon intensity” implies that China’s emissions have only gone up by 7% from 2020-2025, just half of the 14% rise indicated by previous official statistics.
This spotlight is an excerpt of an analysis explaining how the metric appears to have shifted and its implications for China’s climate goals. The full article can be found on the Carbon Brief website.
Germany-sized gap
Reducing carbon intensity – CO2 emissions per unit of GDP – has been China’s key climate commitment since the Copenhagen climate conference in 2009.
Neither China’s international climate pledges nor other official documents have ever set out a definition of carbon intensity.
However, until this year, it was possible to closely reproduce the reported numbers, based on a straightforward interpretation of what carbon intensity means – combining official GDP data with estimates of emissions from the use of fossil fuels.
Now, the types of emissions that are included in the carbon-intensity metric have changed.
The previous carbon-intensity measure apparently included emissions from the use of fossil fuels to generate energy and as chemical feedstocks, so-called “non-energy uses”. It did not include non-fossil fuel CO2 emissions from industrial processes, such as the production of cement.
Based on reported progress against this old scope, China’s carbon intensity had fallen by 12.4% from 2020-2025, well short of its 18% target under the 14th five-year plan.
Yet the 15th five-year plan reported that China had cut its carbon intensity by 17.7% over the same period, indicating a major shift in which types of emissions are included.
A footnote in China’s latest statistical communique indicates that carbon intensity now includes industrial process emissions and excludes non-energy uses of fossil fuels.
The shift has implications for estimates of the country’s emissions.
China’s total emissions were 11.2bn tonnes of CO2 (GtCO2) in 2020. Based on the original methodology, its fossil-fuel CO2 emissions had grown 14% by 2024, an increase of 1,430m tonnes (MtCO2).
In contrast, the newly reported carbon-intensity figures imply that China’s CO2 emissions only grew by 7% between 2020 and 2025, up just 690MtCO2.
The gap between these figures amounts to 730MtCO2, equivalent to the annual emissions of Germany or South Korea.
Decoding the new methodology
The methodology change could have significant implications, making it important to understand how it is being calculated.
The new scope includes industrial-process emissions. One of the largest sources of these emissions, the cement industry, has been contracting, helping explain the improvement to carbon intensity under the new scope.
In addition, the new scope excludes non-energy use of fossil fuels – largely relating to the chemicals industry – which have seen rapid growth in the past five years.
One way to make the numbers add up would be to assume that the amount of carbon embedded in chemical-industry products has increased by the equivalent of 500MtCO2.
However, the reported output of major chemical-industry products cannot account for this level of embedded carbon.
Neither the change in scope of the carbon-intensity calculation, nor the change in the amount of carbon retained in products, can explain the size of the revision in the newly reported numbers. There must be another explanation.
Either the new scope broadly aligns with the explanation outlined above, but also excludes a subset of the CO2 emissions. Or the scope does not exclude any of the CO2, but there are gaps in the monitoring of some energy or industrial-process emissions.
Either explanation would mean China is not accounting for some of its CO2 emissions.
Implications for China’s targets
This change has the effect of weakening China’s climate targets and introducing more uncertainty into tracking progress.
The new numbers means it will require less effort to hit the 2030 carbon-intensity target in its Paris pledge. This target can now be met even if emissions rise, whereas the previous metric would have required a reduction.
It will also require less effort to hit the carbon-intensity target in China’s 15th five-year plan.
In addition, China would be able to officially meet its target to peak emissions by 2030, even if its overall CO2 emissions do not actually peak. The change could also affect delivery of China’s targets to cut emissions by 2035.
While China may use any definition it wants for carbon intensity under the UN climate framework, retrospective changes or inconsistent accounting could erode the value of its commitments.
Moreover, it will ultimately have to close any gaps in its emissions data and reporting, under the transparency rules of the Paris Agreement.
This spotlight is adapted from an article by Centre for Research on Energy and Clean Air lead analyst Lauri Myllyvirta for Carbon Brief.
Watch, read, listen
MINING ACCIDENT: A column in Bloomberg argued that “continuing to veer…toward cleaner [energy] development” could avoid coal-mine accidents such as the one that claimed 82 lives in Shanxi province.
INDONESIAN NICKEL: The European Guanxi Podcast recorded a discussion with Ember’s Dr Muyi Yang about the role China plays in Indonesia’s coal-reliant nickel industry.
INDUSTRIAL HURDLES: A new article in Yicai investigated the reasons why companies are holding back on relocating to zero-carbon industrial parks.
NEGATIVE PRICES: The Communist party-affiliated People’s Daily published a widely-read article on how the emergence of “negative electricity prices” signals a need for a more “coordinated” buildout of clean energy.
163
In billion tonnes, the amount of carbon dioxide (CO2) that China could avoid between 2025-2060 by transitioning to clean energy, according to a new study published by several leading academic institutions in Nature Reviews Earth & Environment. Scientists estimate that the remaining global budget for keeping temperatures below 1.5C is 130bn tonnes of CO2.
New science
- Population exposure to heatwave-drought events “increased markedly” across China during between 1961-90 and 1991-2020, driven by a combination of population growth and more frequent heatwave-drought events | Atmospheric Research
- Fossil-fired power generation accounts for three-quarters of China’s total water consumption for energy production | Mitigation and adaptation strategies for global change
Recently published on WeChat
China Briefing is written by Anika Patel, with contributions from Lekai Liu, and edited by Simon Evans. Please send tips and feedback to china@carbonbrief.org
The post China Briefing 28 May 2026: Deadly rains | China pushes back | Examining China’s carbon intensity metric appeared first on Carbon Brief.
A new book examines “renewable portfolio standard” laws and the ways utilities drove the bus.
Not long ago, the rise of U.S. renewable energy was largely tied to state policies that required or encouraged utilities to meet benchmarks for obtaining wind and solar power.
How Utility Companies and States Shaped America’s Clean Energy Transition
Europe has been hit by a searing heatwave, which has shattered temperature records across France, Spain and the UK.
In London, for example, the mercury hit a record high for May of 35.1C at Kew Gardens on Tuesday 26 May, breaking the former record-high May temperature by more than 2C.
Multiple people have died as a result of the high temperatures, including 14 people across the UK and France who drowned.
The heatwave was driven by a “heat dome”, in which warm air moving up from northern Africa has become trapped under a high-pressure system over western Europe.
Experts have been quick to point out the link between extreme heat and global warming, with one saying it was “beyond a shadow of a doubt” that climate change was making such events “more likely and more severe”.
In this article, Carbon Brief examines the impacts of the heatwave and the role of climate change.
- What is happening with the May heatwave in Europe?
- What is driving the record-shattering heat?
- What are the impacts of the extreme heat?
- How has the media responded?
What is happening with the May heatwave in Europe?
Europe has been hit by “mind-bogglingly crazy” temperature records in May, according to the Financial Times, quoting Peter Thorne, director of the ICARUS Climate Research Centre at Maynooth University in Ireland.
In London, on Tuesday 26 May, temperatures hit a record high for May of 35.1C at Kew Gardens – breaking the previous record of 34.8C, set just the day before.
This was more than 2C above the previous May temperature high of 32.8C recorded in 1922 and again in 1944, reported the Times.
The Associated Press added that the UK capital also recorded a rare “tropical night”, when temperatures did not fall below 20C overnight.
The Daily Telegraph reported that Wales and Northern Ireland also saw record-high temperatures, of 27.4C in Cardiff and 23.4C in Armagh, on Sunday.
As with the UK record, these were quickly surpassed. BBC News reported that temperatures hit 32.9C in Bute Park, Cardiff and 24.5C in Thomastown, County Fermanagh, on Tuesday.
BBC News quoted a spokesperson from the Met Office, who said:
“This heat would be exceptional in the UK even in mid-summer, let alone in May.”
The broadcaster added that the average temperature in the UK at the end of May is usually 14-20C.
The Associated Press reported that temperature records have also fallen across Europe.
This includes in France, where temperatures reached 36C on Monday in the country’s south-west and remained above 20C at night across much of the country. The newspaper Libération declared that “it has never been so hot, so early, in France”.
The Guardian reported that the weather agency Météo France said the heatwave could last through the week and bring temperatures as high as 39C in some areas in the country.
As well as the UK and France, other nations have been seeing temperatures soar. France24 reported that temperatures in Spain were expected to reach 38C, with Italy also facing high temperatures.
The Irish Times reported that the May high-temperature record was broken twice in Ireland on the same day, with 29.7C recorded in Carlow and then 30.5C at Shannon Airport on Tuesday.
Le Monde explained that a “heat dome” of warm air from northern Africa is behind the high temperatures across Europe. (See: What is driving the record-breaking heat?)
The Financial Times quoted ICARUS’s Thorne saying that the records being set in Europe, “particularly in the UK and France, are mind-bogglingly crazy”. He added:
“We have more than 100 years of observational records. To break the all-time May record by more than 2C…is hard to comprehend.”
What is driving the record-shattering heat?
The immediate driver of the extreme heat seen over Europe this week is a “heat dome”, according to Politico.
The outlet explained that the phenomenon is driven by “warm air moving up from northern Africa [that] has become trapped under a high-pressure system over western Europe”. It added:
“The effect is similar to that of a lid on a pot, with warm air forced downward and baking affected regions with prolonged, blistering heat.”
Spain’s El Correo explained that the phenomenon is “not a simple heatwave”, adding that such “high-pressure systems trapped over Europe are not usually seen before summer”.
However, many publications have linked the severity of the extreme heat to climate change. The Associated Press quoted ICARUS’s Thorne, who said:
“We know beyond a shadow of a doubt that heatwave events such as this have been made more likely and more severe due to climate change arising from our emissions of heat-trapping greenhouse gases.”
The Guardian quoted Dr Chloe Brimicombe, a researcher at the University of Oxford, who said:
“The record-breaking heat is a reminder of how climate change is impacting our lives in the UK. It highlights the urgency of recent calls for heat adaptation.”
France’s Le Figaro described the event as an “unequivocal sign of global warming”.
The Independent reported that the heatwave “has the fingerprints of climate change all over it”. Other outlets, including Inside Climate News and Scientific American, also covered the links between extreme heat and climate change.
BBC News noted that over the last 30 years, Europe has been warming by 0.56C per decade – more than twice the global average.
The outlet quoted Prof Erich Fischer, professor at the Institute for Atmospheric and Climate Science at ETH Zurich in Switzerland, who compared the record-breaking temperatures to setting a new record in sports.
He explained that “if someone beats a world record in high jump, you would expect them to beat it by one centimetre and not suddenly by 20, 30 centimetres”. Similarly, he said that in the case of temperature, you would expect new records to be broken by a fraction of a degree, rather than 2 or 3C.
However, the broadcaster explained that “when a relatively rare weather system, such as this week’s heat dome, comes around in a warming climate, the margin of record can be huge”.
Simon Stiell, the executive secretary of UN Climate Change, called the heatwave a “brutal reminder of the cost of global warming”, according to Politico.
The Guardian also quotes Stiell, who said:
“The science is clear that human-induced climate change is making these heatwaves more frequent and extreme”.
What are the impacts of the extreme heat?
The heatwave has already been linked to multiple deaths.
This included seven people in France, five of whom died by drowning and two who suffered heat-related deaths while competing in sporting events, said the Guardian.
Separately, the Guardian reported that at least nine people have died in the UK from “water-related incidents” during the heatwave.
France24 reported that “restrictions on outdoor work were imposed in parts of Italy” and that “farmers reported accelerated harvests as temperatures went beyond 30C across [south-west France]”.
The Guardian reported that tennis players at the French Open were “forced to adjust their games while trying to find their best level through obvious discomfort”, amid 33C temperatures in Boulogne-Billancourt, Paris, on Monday.
CNN added that, in the UK, “a wildfire broke out near Arthur’s Seat, a hill in Edinburgh, Scotland, and hundreds of properties in south-east England were left without water as demand spiked”.
BBC News reported on a warning from a chief nurse that hospitals in the south-west of England were busier than usual amid the heatwave.
BBC News reported that the UK saw a surge in emergency calls on Tuesday. The Daily Telegraph added that “Britain’s roads started melting and rail commuters were left stranded for hours”.
Meanwhile, the Guardian reported on a warning from climate campaigners that the government “urgently” needs to start installing air conditioning units in schools and care homes.
The extreme heat has also affected Europe’s renewable energy generation. Bloomberg said that “the heat dome has blocked clouds and fueled booming solar generation”, but added that “by clearing clouds and calming the atmosphere, the heat dome has had the opposite effect on wind speeds”.
How has the media responded?
The unseasonably high temperatures have caught the attention of news outlets in the UK, France and other affected nations.
Often, news stories were accompanied by photos of people relaxing at the beach, eating ice cream and swimming in the sea.
Such images of “fun in the sun” have often drawn criticism from climate researchers for “misrepresenting” the risks of heatwaves.
This choice of imagery – and the way right-leaning newspapers in the UK tend to focus on the positive aspects of hot weather – was highlighted by journalist and media critic Mic Wright in a Substack post. He wrote:
“Most British newspapers write about extremely hot weather with the tone of a frog in a boiling pot pretending it’s a jacuzzi.”
Despite blanket news coverage of the record heat in media outlets across western Europe, there has been relatively little commentary from their opinion pages.
No major UK newspapers have published editorials about the heat and there has been no space dedicated to it in the comment sections of the largest French and Spanish newspapers.
One exception in UK media was the Daily Mail’s climate-sceptic columnist Richard Littlejohn writing an article mocking heat-safety measures and warnings issued by the Met Office and the UK Health Security Agency (UKHSA).
In contrast, the Guardian published an article by Bill McGuire, professor emeritus of geophysical and climate hazards at University College London, warning of the dangers facing the UK as extreme heat becomes “the norm”. He wrote:
“We need, then, to face the fact that life in the 2050s is going to be very different from today, and act now. The sooner we recognise this and begin – as a nation – to prepare and adapt accordingly, the better we will be able to meet these enormous challenges to our everyday lives.”
Oliver Duff, editor-in-chief of the i newspaper, wrote that the UK is “emotionally underprepared”, as a nation, for the heat:
“Worries about climate change are forgotten in the giddy determination to enjoy our brief, unreliable summers, whichever month of the year they deign to visit.”
Writing in the Independent, journalist Kat Brown reflected on the Climate Change Committee’s recent advice to the UK government on adapting to climate change. She stressed the need to “take heatwaves seriously”.
James Wallace, chief executive of the charity River Action, was given a guest column in the Daily Express in which he wrote: “As the nation swelters in record-breaking temperatures, England is sleepwalking into a water crisis.”
In reference to water shortages and increasingly extreme weather, Wallace also emphasised that “this is climate breakdown in real time”.
The post Media reaction: UK and Europe’s ‘mind-boggling’ May heat and climate change appeared first on Carbon Brief.
Media reaction: UK and Europe’s ‘mind-boggling’ May heat and climate change
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