As 2026 passes its halfway point, the world is watching one of the most rapidly intensifying El Niño events in the modern record take shape in the tropical Pacific.
The developing El Niño is boosting expectations for global temperatures, both this year and next.
El Niño is the warm phase of a recurring climate pattern in the tropical Pacific that releases heat from the ocean into the atmosphere, temporarily raising global temperatures and reshaping rainfall and extreme weather around the world.
Carbon Brief’s “state of the climate” report in April gave 2026 a 19% chance of setting a new global temperature record.
That chance now stands at 35% – a near-doubling in four months – with virtually all of the change driven by ever-stronger El Niño forecasts.
The key findings from the first half of 2026 include:
- The first six months of 2026 were the third-warmest start to a year on record – around 1.4C above pre-industrial levels – behind only 2024 and 2025.
- While the first few months of the year came in as the fourth or fifth warmest, both May and June were the second-warmest ever recorded as El Niño conditions took hold.
- El Niño conditions arrived in April and reached the threshold for a “strong” event by June, when the Niño3.4 index reached 1.6C. Of the 667 model runs Carbon Brief examined, 91% project a peak later this year that is above the strongest El Niño in history.
- The chance that 2026 beats 2024 as the warmest year on record has risen to 35%. Carbon Brief’s central estimate remains that 2026 will be the second-warmest year, at around 1.51C above pre-industrial levels.
- Whether 2026 sets a record will depend on the dataset: the odds range from around two-in-three in NASA and Berkeley Earth data to around two-in-10 in ERA5 and one-in-10 in the JRA-3Q reanalyses.
- June 2026 was western Europe’s hottest June on record, amid a heatwave that set hundreds of individual records. Nearly 9% of the world’s surface saw record June warmth.
- The developing El Niño will have its largest impact on 2027, which Carbon Brief projects to be around 1.7C above pre-industrial levels – this would comfortably set a new record for the warmest year.
- Arctic sea ice has spent 39 days of 2026 so far at, or below, record daily lows following its joint-lowest winter maximum in the satellite era.
Third-warmest start to a year
Carbon Brief analyses records from six different groups that report global surface temperatures: NASA GISTEMP, NOAA GlobalTemp, Hadley/UEA HadCRUT5, Berkeley Earth, Copernicus/ECMWF ERA5 and the JMA JRA-3Q reanalysis.
The first half of 2026 was the third warmest on record in every one of the six datasets, behind only 2024 and 2025. The figure below shows annual temperatures since 1970, along with the 2026 year-to-date average (January-June) for each group.

January 2026 was only the fourth- or fifth-warmest January on record, as lingering weak La Niña conditions suppressed temperatures. Since then, each month has climbed the rankings.
La Niña is the cool phase of the El Niño-Southern Oscillation (ENSO). It typically brings wetter conditions to Australia, Indonesia and equatorial South America and drier conditions to the southern US.
March was second-to-fourth warmest across datasets, April the third and both May and June were the second warmest ever recorded, behind only the corresponding months of 2024.
The chart below shows how June 2026 (thick red line) came in around 0.08C below the June record set in 2024 in the average of the six datasets.
Meanwhile, Copernicus reported that global sea surface temperatures over the ice-free oceans set a new June record.

A record-breaking El Niño
ENSO is the largest source of year-to-year variability in global temperatures.
The most common way to assess the strength of an El Niño or La Niña event is by looking at the sea surface temperature anomaly in the “Niño3.4” region of the tropical Pacific.
El Niño and its sister La Niña occur when temperatures in the tropical Pacific are more than 0.5C (El Niño) or less than 0.5C (La Niña) below normal, where normal is defined by removing the effects of long-term climate change.
The thresholds for defining the strength of an El Niño or La Niña are above/below 1C for “moderate” events, 1.5C for “strong” events and 2C for “very strong” (or “super”) events.
After two years dominated by La Niña conditions, the tropical Pacific flipped decisively in April when the Niño3.4 index crossed the 0.5C El Niño threshold. It subsequently reached 1C in May and hit 1.6C in June, marking one of the fastest onsets in the observational record.
In the first few weeks of July, the index shot above 2C, significantly outpacing the speed at which any prior El Niño events developed.
Forecast models expect even more to come.
An analysis by Carbon Brief of the median of 667 model runs from 14 different modelling groups suggests that sea surface temperatures in theNiño3.4 region could peak at 3.59C between July and December.
More than 91% of runs predict the strongest El Niño event in the modern record. The previous record was set during the event of 2015-16, when temperatures peaked around 2.75C.
This is shown in the chart below, which features a histogram of the likelihood of different possible 2026 El Niño peaks across all the models on the top. The forest plot beneath shows the best estimate and range of outcomes predicted by each individual model.

The median forecast in every one of the 14 models suggests a peak that exceeds the 2C “super” El Niño threshold, with most models peaking in November or December.
Some caution here is warranted, however. Raw model Niño3.4 anomalies are measured against a fixed climatology. Because the entire tropical ocean has warmed due to human-caused greenhouse gas emissions, the models tend to overstate event strength relative to the historical record.
A cleaner comparison uses the relative Niño3.4 index (RONI), which subtracts the average tropical ocean warming.
This relative measure suggests the median forecast peak for El Niño in the latter half of 2026 is 3.1C. The prior record stands at a lower 2.69C, set in 1982-83.
Nevertheless, 77% of model runs still show a new record event occurring. This is shown in the chart below.

In summary, on both indexes, the central expectation is now for the strongest El Niño in the observational record.
Model forecasts made in the spring and early summer have historically shown some bias toward overpredicting event strength. However, forecasts made after the spring are considerably more reliable.
Widespread record warmth and a massive European heatwave
The map below shows the temperature anomaly for the first half of 2026 in the ERA5 dataset, relative to a 1981-2010 baseline period.

It shows how the largest warm anomalies were found across the Arctic – particularly north of Scandinavia and Svalbard – as well as western Europe, the western US, northern Mexico, central Asia, western China, eastern Russia and the Antarctic Peninsula region.
The developing El Niño is clearly visible as a tongue of warm anomalies stretching along the equatorial eastern Pacific. Only a few regions – central Canada, Alaska and parts of the Southern Ocean – saw temperatures below the 1981-2010 average.
Where 2026 ranks against history is even more striking. The map below shows where the period of January-June 2026 ranked among all 87 years in the ERA5 record, which stretches from 1940 to 2026. Grid cells marked in red saw temperatures in the first half of the year that were in the top-five warmest years.

More than 30% of the global surface had a top-five warmest start to the year and 7.1% saw its warmest on record, including much of western Europe, the eastern equatorial Pacific and the seas around Japan.
Not a single grid cell had a top-five coolest start to the year. In June alone, 8.9% of the world’s surface saw record warmth for the month. This is illustrated in the map below, where grid cells marked in red saw temperatures that were in the top-five warmest years and grid cells in blue in the top-five coolest.

The standout regional temperature event was a heatwave that struck Europe in late June.
Western Europe had its hottest June on record, recording an average temperature of 3.05C above the 1991-2020 average and beating the record set only a year earlier, according to Copernicus. A heat dome over 22-30 June broke 10 all-time national heat records and around 400 long-record station records.
France set a new June national record of 44.3C, while the UK broke its June record on three consecutive days, reaching 37.3C. The humid heat drove a death toll estimated in the thousands.
A separate heat dome also brought record June temperatures to parts of North America in late June.
On track to be second warmest, but a real chance at first
Carbon Brief’s updated projection for 2026 as a whole combines the observed January-June temperatures with the latest El Niño forecast. It uses a statistical model trained on the historical relationship between the first half of the year, ENSO conditions and annual temperatures observed over 1950-2025, excluding major volcanic eruption years.
Carbon Brief estimates that 2026 will be around 1.51C above pre-industrial levels, with a 90% range of 1.45C to 1.57C, shown by the yellow dot in the chart below.
This is up from 1.47C in the projection set out in April – and is notably more certain now that half the year has passed.
This central estimate would make 2026 the second-warmest year on record, just below 2024 (1.52C) and ahead of 2023 (1.43C) and 2025 (1.41C).

Carbon Brief’s modelling puts the chance that 2026 beats 2024 as the warmest year on record at 35%, using the average of the six different surface temperature records assessed. It puts the chance that 2026 comes in above 1.5C at around 63%.
If it does, 2026 would be the second calendar year – after 2024 – where warming averaged above 1.5C, in a further sign that the world is rapidly approaching the Paris Agreement’s 1.5C limit.
A single year above 1.5C does not by itself constitute a breach of the goal, which refers to the longer term average temperature of the planet. This is defined as the midpoint of a 20-year period by the Intergovernmental Panel on Climate Change (IPCC).
These likelihood of a record have been climbing rapidly throughout 2026.
Global temperatures so far throughout the year have run well below the record-setting levels of 2024 – around 0.13C cooler over the first six months.
On their own, temperatures observed so far in 2026 would make a new annual record unlikely.
However, rerunning the projection using only the data available at the end of each month since March – including both the year-to-date observations and the El Niño forecast issued that month – shows a shifting picture.
Using March data, 2026 had just a 7% chance of setting a new record. That rose to 16% in April, 24% in May, 27% in June and 35% using the latest data in mid-July.
This is shown in the chart below.

Notably, this rise has little to do with observed temperatures. The year-to-date anomaly has actually drifted slightly down, from 1.41C after March to 1.39C after June.
Observed temperatures and fewer remaining months of the year contributed only around four percentage points of the 28-point rise in the likelihood; the remaining ~84% of the change comes from successive upward revisions to the El Niño forecast for late 2026.
However, whether 2026 ends up becoming the warmest year on record may end up depending on which dataset is used.
Running the same projection gives odds of a 2026 record of around two-in-three for Berkeley Earth (66%) and NASA GISTEMP (65%), but only 35% for HadCRUT5, 24% for NOAA and just 13% and 9% for the ERA5 and JRA-3Q reanalyses, respectively.
This is shown below.

The divergence between projections mostly reflects how exceptional each dataset’s 2024 was.
The reanalysis approaches recorded a particularly warm 2024, leaving 2026 more ground to make up. GISTEMP and Berkeley, on the other hand, project 2026 modestly above their 2024 values.
A repeat of the situation in 2015 where different groups disagreed on record rankings is a real possibility. Headlines in January 2027 may hinge on choices of dataset.
2027 likely to be the warmest year in human history
The biggest climate story of the developing super El Niño may not be 2026 at all.
Global temperatures typically lag in the tropical Pacific by around three months. So, an El Niño event peaking in November and December 2026 will have its largest warming influence on 2027.
We saw this same pattern occur in 1997-98, 2015-16 and 2023-24 – where the year in which the El Niño developed was warm, but the following year was record-smashing.
Carbon Brief has extended its projection into 2027 by using the historical relationship between year-over-year temperature changes and ENSO conditions in the preceding autumn.
This yields a best estimate for 2027 of around 1.71C above pre-industrial levels, with a 90% range of 1.49C to 1.93C. This is shown by a yellow square on the chart below.

That would give 2027 a 92% chance of setting a new global temperature record and a 94% chance of exceeding 1.5C.
Taking 2026 and 2027 together, there is a 93% chance that at least one of the two years sets a new record.
The 2027 estimate is more uncertain than the 2026 one. As with 2026, there are uncertainties in the projection due to unknowns around exactly how strong the El Niño peak proves to be and how quickly it decays.
However, even the low end of the 2027 range would put it among the warmest years on record and the central estimate of 1.71C would exceed 2024 by nearly 0.2C.
If these projections bear out, the 2020s will have delivered new global temperature records in 2023, 2024 and 2027 – and potentially 2026 too – with a number of individual years well above the 1.5C threshold.
The long-term warming trend, driven by human emissions of carbon dioxide and other greenhouse gases, has increased from around 0.18C per decade in the early 2000s to around 0.27C per decade today. El Niño and La Niña play a big role in determining which years along that rising path stand out as records.
Arctic sea ice at record lows
Arctic sea ice has spent much of 2026 in record-low territory.
Following the joint-lowest winter maximum in the satellite record in mid-March, daily extent has set or tied record lows for the date on 39 days so far this year, including extended spells in mid-to-late March and in early-to-mid June.
The most recent record-low days were in early July.
The chart below shows how Arctic sea ice in 2026 (dark red line) has been below the historical range (shaded red).
It also shows how Antarctic sea ice (dark blue), meanwhile, has remained below the 1979-2010 range for almost all of 2026 to date.

As of mid-July, Arctic extent is a bit below the 1979-2010 historical range for the date, though it remains around 0.6m square kilometres (km2) larger than the record low for the date set during 2020’s exceptional summer melt season.
The trajectory over the coming two months will determine whether 2026 challenges 2012’s record September minimum. Early-summer conditions are a poor predictor of the September minimum, which depends heavily on summer weather.
Antarctic sea ice, meanwhile, is currently around 300,000km2 below the historical envelope, but has stayed well clear of the record lows set in 2023 and has not set any new daily records yet this year.
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The post State of the climate: Rapidly developing El Niño raises chance of record-warm 2026 appeared first on Carbon Brief.
State of the climate: Rapidly developing El Niño raises chance of record-warm 2026
Climate Change
Will the world’s drying lands get relief from COP17 in Mongolia?
Starting on Monday, about 10,000 government negotiators, scientists, journalists and campaigners will gather at a purpose-built venue in a national park in Mongolia’s capital Ulaanbaatar to discuss how to stop land turning into desert as the world warms.
Drought is currently sweeping much of the Northern hemisphere, leaving normally green urban parks looking like dry savannah, causing crops to fail, food prices to rise and billions to be shaved off economic output.
On Wednesday, Britain’s prime minister chaired an emergency meeting of the government’s Cobra committee. These are usually reserved for wars, terrorist attacks, riots and pandemics – but this one was on the extreme heat and drought the UK has been suffering since May.
With many countries facing far worse with fewer resources than the UK, the issues to be discussed at the UN’s COP17 summit in Mongolia – often overlooked – should be nearer the top of policy-makers minds.
But what is COP17? What will be decided and announced there over the next two weeks? How does it relate to climate change and how will it help restore the lands on which we all rely for our food, water and other essential resources? Climate Home News explains all below.
What is COP17?
It is the conference of parties (COP) to the United Nations Convention to Combat Desertification (UNCCD). The parties are 196 governments, which includes all of the countries recognised by the UN.
The convention was conceived at the Rio Earth Summit in 1992, at the same time as the other two larger “Rio trio” conventions on climate and biodiversity.
While the climate convention’s COP takes place every year, the UNCCD COP happens only once every two years. COP17 will be its seventeenth gathering.

What is desertification?
It is the process by which land degrades and becomes more like a desert, making it harder – and sometimes impossible – to grow crops or graze livestock there.
Climate change and other human activities – like excessive irrigation which depletes ground water – are making this process worse, causing poverty, hunger, health problems, forced migration and loss of species.
It’s a widespread problem. The UN estimates that half a billion people live within areas that have experienced desertification since the 1980s and that two-fifths of the world’s land is degraded.
What has it got to do with climate change?
The planet’s climate is heating up, mainly due to humans burning fossil fuels, and drying out its land. This kills plants and exposes the soil which can then be blown away by wind and washed away by water.
Without a top layer of soil, plants struggle to grow again and the land gets closer to being a desert. So combating desertification is a way of adapting to climate change.
It is also a way of lessening the pace of climate change, as land degradation releases carbon dioxide previously stored in healthy soils and plants.
What will be negotiated at COP17?
The main issue is what form a new initiative to tackle drought could take. The last COP saw Africa push hard for this to be a protocol – a kind of binding sub-treaty to the UNCCD.
But the US, Europe, Argentina and others argued that would take too long to set up, cost too much and take money away from what can be spent on the ground. They prefer a legally weaker alternative – a framework instead of a protocol.
Negotiations went late into the last night of talks in Riyadh, with the Saudis hosting informal consultations, but eventually governments had to agree to disagree and pick up talks again in Ulaanbaatar.
As Earth dries out, countries fail to reach drought agreement
Governments will also negotiate a new policy on protecting rangelands and pastoralists from degradation. Rangelands are areas where animals graze. They cover around half the Earth’s land and include almost everything other than forest, deserts, farms, glaciers and cities. Pastoralists are people who herd animals on these rangelands, often moving from place to place to find fresh pasture.
COP17 host country Mongolia has a lot of both – and pushed successfully for the UN to declare 2026 the International Year of Rangelands and Pastoralists. It is keen to agree a decision at COP17 bringing those issues more to the forefront of the UNCCD.
Negotiators will also debate the UNCCD’s post-2030 strategic framework, which they hope to adopt at COP18 in 2028. Campaign groups like the World Wildlife Fund want a stronger focus on biodiversity and nature-positive food systems.
What will happen when?
The COP will formally open with a ceremony on Monday August 17, followed by opening statements by governments and the adoption of the agenda.
Negotiations will begin, mostly behind closed doors for two weeks until the closing plenaries on Friday August 28.
While talks rumble on in the background, the second week will see senior government representatives including ministers get involved, with a “high-level segment” running from August 24-26.

They will discuss issues like drought resilience, finance and pastoralist communities. This is likely to be when any announcements – of new funding, for instance – are made.
On Monday August 24, there will also be an open dialogue between government officials and civil society members. Here, local practitioners are likely to share stories of how they are helping their communities reverse land degradation. UNCCD prides itself on being a bottom-up convention.
Unlike climate COPs, which often end a day or two over time, UNCCD COPs usually finish on the evening of their last day and – while they have gone late into the night – have never run into the next day.
What else should we watch out for?
At the last COP two years ago, host Saudi Arabia led the creation of an initiative called the Riyadh Global Drought Resilience Partnership to help 80 of the poorest nations deal with drought.
It received $12 billion in pledges, mainly from Gulf-based development finance institutions. Saudi Arabia is expected to report back on whether these pledges have been delivered and how the money will reach those in need now.
There are also hopes that governments will announce financial support for Mongolia’s Rangelands Flagship Initiative, which aims to mobilise investment in projects to fight land degradation.
Who will preside over COP17?
While the last five and the next two climate COPs have been or will be presided over by men, COP17 will be woman-led with Mongolia’s foreign minister, Battsetseg Batmunkh, as president.

This will also be the first COP for the UNCCD’s new executive director Yasmin Fouad. Before being appointed environment minister in her native Egypt, Fouad was a scientist and lead author of the Intergovernmental Panel on Climate Change’s special report on desertification. She played a key role at the COP27 climate summit in Egypt in 2022.
Although Saudi Arabia’s UNCCD COP presidency is ending, the Gulf power house will likely continue to be influential. It has supported the COP financially as part of the Riyadh-Ulaanbaatar action agenda and will be following up on initiatives announced two years ago.
While Saudi Arabia is often blamed for obstructing progress at climate talks, as a desert nation it is generally thought to have played a constructive role at UNCCD COPs.
What are the negotiating dynamics?
The UNCCD has six main negotiating groups: Africa, Asia, Latin America and the Caribbean, the Northern Mediterranean, Central and Eastern Europe, and developed donor countries. Governments can also speak in their own capacities.
While divisions between the Global North and Global South do exist at UNCCD COPs, they are not as stark as at climate COPs. The Global South’s umbrella group – the G77 and China – usually only speaks on finance issues, on which developing countries tend to be united.
Civil society groups are present but not as vocal or as confrontational as at climate COPs. There are generally no protests and campaigners tend to try to hold governments accountable more quietly. There are likely to be far fewer journalists than at climate COPs too.
What role will the US play?
While the US has left the UN’s climate convention, it remains in the UNCCD and is expected to bring a delegation of officials from its departments of agriculture and state. It is likely to resist any renewed push from Africa for a drought protocol.
The post Will the world’s drying lands get relief from COP17 in Mongolia? appeared first on Climate Home News.
Will the world’s drying lands get relief from COP17 in Mongolia?
Climate Change
Pushing the climate crisis: How advertising fuels high-carbon lifestyles
Helen Phillips’ book, ‘Hum’, is set in a dystopian near future, in a city suffering the effects of climate breakdown and with dire air quality. Robots (the Hums) press advertising messages during conversations, meetings and even as they carry out medical procedures.
The Hums are vehicles for these ad messages, which are often for products like cosmetics, sweets or anything that might be relevant during interactions with humans. This advertising is poorly disguised, and merges with sentiments that lean towards concerns of well-being, convincing people how much better off they’ll be if they make a purchase.
While the novel is futuristic, the insidious way advertising permeates daily life is resonant of how adverts show up in our world today. And these ads are directly contributing to the worsening future climate Phillips describes in her book.
Already by the summer of 2026, Europe had seen a 57% increase in wildfires in just four years with western Europe recording the hottest ever June and July on record. We’re facing droughts and floods, as well as predicted hikes in food costs or even chronic food shortages – and that’s before the expected additional effects of a strong El Niño later this year.
Frequent flying and bigger burgers
A portion of this climate breakdown is fuelled by over-consumption in richer countries, particularly of products that are high carbon – for which advertising can take some of the blame. Research shows that adverts drive citizens to consume about a third more goods and services in general, over and above what they might have purchased.
Yet despite a clear link between promoting high-carbon behaviours and climate breakdown, little advertising regulation exists in the UK. Take frequent flying for instance, one of the most carbon-intensive activities we can partake in.
EasyJet’s latest ad campaign is called “Drop Everything”. It encourages consumers to book cheap flights departing within the next 48 hours for presumably short or weekend getaways. Rather than promoting a specific destination, “Drop Everything” promotes a mindset that encourages indiscriminate consumption of flying. The ads were shown on billboards with clever creative slogans, as well as on digital media and through influencer campaigns.
Overall, flight numbers are increasing. The UK Civil Aviation Authority reported the highest number of UK passengers in the first quarter of 2026 (more than 61 million, breaking previous records for travel between January and March). It seems we’re still not joining the dots between flying and a worsening climate.
And how about meat consumption? Scientists advocate for less meat-eating, especially beef which has the highest carbon footprint of nearly all foods. Yet adverts from McDonald’s proliferate, helping make it one of the highest-volume sellers of fast-food chain beef burgers. In 2024, the outdoor advertising budget for McDonald’s UK rose to £86 million, an increase of 71% on previous years.


Small share for sustainability
While over half of UK ad professionals feel increasingly queasy about their profession and its effects on the climate crisis, the people running the show – the UK trade bodies – prefer to focus on the growth advertising brings.
In the first three months of 2026, they stated that UK advertising spend increased by 9.3%, reaching a total of £11.7 billion for that quarter, fuelling consumption and market growth.
But how many of those adverts actually promote low carbon goods and services? Kantar’s Sustainable Ads Tracker shows the percentage of ads featuring sustainability messaging in 2026 is around 4.3%. That’s woefully low, and much of this is made up of messaging that promotes recycling.
Additionally, the ad industry continues to happily produce adverts for the large oil and gas corporations that are fuelling climate breakdown. These adverts only narrowly pass the Advertising Standards Authorities’ advertising codes, allowing the continued greenwashing of the world’s most polluting brands.
There is essentially no leadership from the UK trade bodies, likely because they are directly funded by the brands and advertisers themselves. They are essentially ‘ad shushing’ – pushing for indiscriminate growth and directing attention to their sustainability awards, while confusingly denying that adverts drive higher consumption overall.
Let’s ‘un-shush’
Where does this leave us as we are subjected to hundreds, if not thousands, of persuasive advertising messages every day that support high-carbon lifestyles? Most ad professionals are unable to push back against this agenda at work, often due to the threat of job loss. The advertising trade bodies won’t take the lead as they work in service to big brands and advertisers.
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So, who can push for the changes we need? Members of the public.
Through pressuring our city officials and governments, we can force through restrictions, such as the watershed bans on unhealthy foods on TV before 9pm in the UK. Through supporting the efforts of organisations such as Ad Free Cities and others, we can help achieve bans on outdoor advertising for fossil fuels, aviation, meat and even single-use plastics in cities and regions such as Amsterdam, The Hague, Edinburgh, Florence, Uppsala and many more.
If we’re serious about climate change and stopping big global brands pushing their high-carbon products onto us, then advertising restrictions are one of the best ways to achieve this. If we don’t want a world like the one Phillips describes in her book, we need to make our voices heard above the advertising noise.
The post Pushing the climate crisis: How advertising fuels high-carbon lifestyles appeared first on Climate Home News.
Pushing the climate crisis: How advertising fuels high-carbon lifestyles
Climate Change
Analysis: Weaker EV targets could cost UK consumers £3bn a year by 2030
An upcoming UK government consultation on weakening targets for electric vehicles (EVs) could cost consumers as much as £3bn a year by 2030, according to Carbon Brief analysis.
It could require the UK to import an extra 17m barrels of oil in 2030, raising expected net imports by 8%, as well as adding 2.5% to national emissions that year, the analysis shows.
After years of fierce lobbying by parts of the car industry – and despite the significant savings on offer for EV drivers – media reports suggest that EV targets could be “watered down”.
Under current rules, battery EVs – BEVs, those which run only on electricity – must make up a rising share of new car sales in the UK.
This policy, known as the “zero-emission vehicles” (ZEV) mandate, was introduced by the previous Conservative government and sets a goal for 33% BEV sales in 2026, rising to 80% in 2030.
(Carmakers are able to use “flexibilities” to help meet their targets, which reduces the effective target under the ZEV mandate to an estimated 25% of sales in 2026.)
Now, the government under new Labour prime minister Andy Burnham is reported to be considering a cut in the BEV target for 2030 to just 50% of new car sales, alongside options for 60% or 70%.
Carbon Brief understands that a consultation on weakening the ZEV mandate is being reviewed by the prime minister’s office in Number 10, ahead of being formally released.
If the mandate is weakened to 50% by 2030 – and if carmakers make more use of “flexibilities” – there could be up to 3m fewer BEVs on UK roads by 2030, according to the NGO T&E.
Previous Carbon Brief analysis found that BEVs are around £1,100 cheaper to run per year than a petrol car, thanks to far lower fuel costs.
Overall, BEVs are more than £1,000 per year cheaper to own than either petrol cars or plug-in hybrids (PHEVs, which can run on petrol or electricity).
This is according to analysis of the “total cost of ownership” by the Energy and Climate Intelligence Unit (ECIU), including purchase price, fuel costs, insurance and proposed pay-per-mile charges.
In total, Carbon Brief analysis shows that UK drivers could be hit with an extra £3bn in annual ownership costs by 2030, if the ZEV mandate is weakened, as shown below.

A weaker ZEV mandate could “put billions of pounds of committed investments at risk”, reports BusinessGreen, including in the EV charging network and battery supply chains.
Industry group Energy UK says that the mandate is “working in the way it was designed to work” and that it is the “single biggest driver of emissions reductions” in government climate plans.
However, Carbon Brief analysis shows that a weaker ZEV mandate could result in an extra 7.4m tonnes of carbon dioxide emissions (MtCO2) in 2030. This would add the equivalent of 2.5% to national emissions in 2030, under the UK’s international climate goal for that year.
In addition, a weaker ZEV mandate could result in the UK needing to import an extra 17m barrels of oil in 2030, equivalent to 8% of projected net imports that year.
Energy UK says that shifting to EVs will help to reduce household energy bills “for everyone”. This is not only through direct cost-of-ownership savings for EV drivers, but also by spreading the costs of upgrading the electricity system across a wider user base.
Car industry group the Society of Motor Manufacturers and Traders claims that its members are spending “blilions…on discounts, finance incentives and marketing support” and that “natural” EV demand is below the level required to meet the current ZEV mandate. Its claims are disputed.
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The post Analysis: Weaker EV targets could cost UK consumers £3bn a year by 2030 appeared first on Carbon Brief.
Analysis: Weaker EV targets could cost UK consumers £3bn a year by 2030
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