UK chancellor Rachel Reeves has unveiled the first spending review under the current Labour government, announcing funding for nuclear power, energy efficiency and carbon capture and storage (CCS).
A spending review establishes each ministry’s spending limits and priorities for the rest of the parliamentary term.
The Department of Energy Security and Net Zero (DESNZ) received one of the largest jumps in capital spending, despite energy secretary Ed Miliband reportedly being one of the last to agree to a spending settlement.
Before the final details had been announced, the Times was describing Miliband as one of the “biggest winners” from the process.
High-profile funding announcements in the Treasury’s spending review include £14.2bn for the Sizewell C new nuclear power plant in Suffolk, the first state-backed nuclear power station for decades.
Elsewhere, two new CCS clusters – Acorn and Viking – were allocated funding and railways across the nation were given a boost.
Below, Carbon Brief runs through the key announcements.
- Departmental spending
- Energy efficiency
- Energy infrastructure investment
- Transport
- Other announcements
Departmental spending
Spending reviews are an opportunity for governments to stake out their priorities by setting the budgets for departments over the rest of this parliament.
Reeves’ spending review has been viewed by experts and media commentators as an opportunity to boost Labour’s flagging popularity and pursue some of its key manifesto commitments, including net-zero.
It covers plans for departmental “resource” spending – including day-to-day running costs – out to 2028-29 and “capital” spending out to 2029-30.
The latter includes injections of funding for infrastructure and public services, such as major clean-energy and transport projects.
In her speech launching the review, Reeves did not specifically mention the terms net-zero or climate change, but stressed the importance of achieving energy security via domestic, low-carbon power. “Clean energy” also featured prominently in the review document itself.
Overall, total departmental budgets are set to grow by 2.3% in real terms across the spending review period.
The Department for Energy Security and Net Zero (DESNZ) is expected to see a 16% increase in overall departmental spending, reaching £12.6bn in 2028-29.
(This does not include the boost in funding for Sizewell C nuclear plant, which will see a 15.6% increase thanks to a £14.2bn investment over the next five years. See: New nuclear.)
The chart below – taken from the spending review document – shows that while the absolute increase in spending on areas such as health, defence and education is higher, DESNZ is among the most highly prioritised in relative terms.
The review document emphasises that this increase in public money is necessary to mobilise private investment and “secure the UK’s electricity system with homegrown, clean power by 2030”.
Other departments that are also relevant for climate action have not seen the same overall increases in budget.
The Department for Transport (DfT) is set to see its overall departmental spending drop by 0.4%. However, the review notes that capital spending will increase, including more money for local low-carbon transport options and major rail projects.
The Department for Environment, Food and Rural Affairs (Defra) budget is also expected to fall overall, but support for “nature-friendly farming” is set to more than double over the review period.
Energy efficiency
Leading up to the spending review, there had been speculation that the government might cut plans to invest £13.2bn on upgrading the nation’s homes under its “warm homes plan”, which had been a manifesto commitment ahead of last year’s election.
Such a move could have cost households more than £1.4bn a year in avoidable energy bills, according to analysis from thinktank the Energy and Climate Intelligence Unit (ECIU).
However, the spending review confirmed the pledged £13.2bn in funding for the scheme, covering spending between 2025-26 and 2029-30.
The government says this will help to cut bills by up to £600 per household through energy efficiency measures, heat pumps, solar panels and batteries. It will also help support tens of thousands of jobs across the country, the spending review adds.
According to innovation agency Nesta, the warm homes funding is roughly double the previous government’s commitment, amounting to a £6.6bn increase in government spending on home upgrades over the current parliament, compared with the previous one.
It will see around one-fifth of the nation’s housing stock upgraded by 2029, although to a varying degree.
Responding to the announcement, trade association Energy UK’s chief executive Dhara Vyas said in a statement:
“It’s also very important that millions of customers will see a direct benefit from today’s announcements. By reaffirming the funding to improve the energy efficiency of millions of homes and supporting the switch to cleaner heating alternatives, customers can expect warmer and more comfortable homes, cleaner air and cheaper bills – showing how the energy transition can improve their daily lives.”
Funding for the warm homes plan in the spending review follows £3.4bn in investment announced for the scheme at the autumn budget in 2024. At the time, Labour had said that this was just the “first step” in investment for decarbonisation and household energy efficiency within the scheme.
Further details for the warm homes plan will be confirmed in October, the spending review says.
Beyond energy efficiency, Reeves announced what she called the “biggest boost to investment in social and affordable housing in a generation”, confirming £39bn in funding for a 10-year affordable homes programme.
This will nearly double government spending on affordable housing, according to reporting earlier this week.
Miliband recently announced changes to the “future homes standard” that will mean almost all new homes will have to be built with rooftop solar as a default, high levels of energy efficiency and low-carbon heating, such as heat pumps.
As such, new properties built under the affordable homes programme will largely have to include energy efficiency measures and low-carbon energy technologies.
Energy infrastructure investment
GB Energy
The spending review also confirms that it will allocate £8.3bn in funding for Great British Energy (GB Energy) and the linked GB Energy – Nuclear, another manifesto commitment.
It says this has been achieved by allocating £9.6bn in “additional financial transactions, such as loans and equity investments, to support growth”.
(It explains that “financial transactions” are designed to “allow government to invest alongside the private sector, through equity investments, loans and guarantees”. The document also says that GB Energy will be designated as a “public financial institution”.)
In addition to this top-line confirmation for GB Energy, the spending review also gives it an extra £300m in support for offshore wind supply chains.
This forms part of the “government’s investment in resilient and clean energy security, boosting domestic jobs, mobilising additional private investment and securing manufacturing facilities for critical clean energy supply chains such as floating offshore platforms”, it notes.
The spending review confirms up to £80m for port investment to support floating offshore wind deployment in Port Talbot in Wales, subject to final due diligence.
GB Energy funding follows on from Labour’s manifesto, promising investment into technologies such as floating offshore wind, as well as partnering with local authorities and the private sector to support the deployment of mature technologies.
New nuclear
Ahead of the spending review, the chancellor announced a £14.2bn investment in the planned Sizewell C new nuclear power plant in Suffolk.
The plant is being jointly developed by the UK government with French state-owned utility firm EDF Energy, which is already building the Hinkley C plant in Somerset.
Each new plant will have a capacity of 3.2 gigawatts (GW), enough to power six million homes. During its construction, Sizewell C will provide 10,000 jobs, including 1,500 apprenticeships, according to the government.
In a statement earlier this week, energy secretary Ed Miliband said new nuclear was needed for energy security, lower bills and to help cut emissions. He said:
“We need new nuclear to deliver a golden age of clean-energy abundance, because that is the only way to protect family finances, take back control of our energy, and tackle the climate crisis.
“This is the government’s clean energy mission in action- investing in lower bills and good jobs for energy security.”
Speaking on BBC Radio 4’s Today programme following the investment announcement, Miliband stated that China would not be able to invest in the new nuclear plant in Suffolk. He further clarified that, while the majority of the investment would come from the UK government, there will also be private investment announced at a later date.
Sizewell C will be one of the first new nuclear power stations in the UK in decades, with no new nuclear power plants having opened since 1995 and all but one of the existing fleet expected to retire by the early 2030s.
The under-construction plant at Hinkley Point C is also being developed by EDF and is expected to serve as a “blueprint” for Sizewell C.
The Hinkley C plant is being funded via a “contract for difference” (CfD), under which EDF is responsible for the upfront investment costs, but will receive £92.50 per megawatt hour (MWh, 2012 prices) for each unit of electricity generated. (This will drop to £89.50/MWh in 2012 prices as a result of the Sizewell C project going ahead.)
EDF has reportedly accepted that Hinkley C will cost more than £40bn to complete, but has “rejected claims” that the Sizewell C scheme would cost a similar amount.
Sizewell C is due to be funded under the “regulated asset base” (RAB) model and so will not receive a CfD, but the details of this deal are not yet available. The final investment decision on the project is due later this summer, according to reports.
Additionally, the government announced Rolls-Royce has been selected to build small modular nuclear reactors (SMRs) following a “rigorous” two-year competition.
Rolls-Royce will partner with Great British Energy – Nuclear as part of the government’s industrial strategy, which will see £2.5bn invested over the spending review period.
The firm is expected to build three SMRs, with the first connecting to the grid “in the mid-2030s”, according to Rolls-Royce.
The spending review also included over £2.5bn for nuclear fusion. This will include support for the design and build of a prototype energy plant in Nottinghamshire.
The document notes that the government is providing a “pathway for privately led advanced nuclear technologies”, although details are not elaborated.
Great British Energy – Nuclear will shortly publish a new framework with the National Wealth Fund for exploring further investment opportunities for viable nuclear projects.
The spending review includes £13.9bn for the Nuclear Decommissioning Authority, to keep “former nuclear sites and facilities safe and secure as it decommissions sites and manages nuclear waste”.
Carbon capture and storage
The UK has already pledged “up to” £21.7bn of funding over 25 years to support five carbon capture and storage (CCS) projects, involving “clusters” of connected facilities.
Most of this funding will come from levies on consumers, but the government has also been gradually announcing chunks of public investment to get these initiatives off the ground.
The spending review allocates another £9.4bn of capital spending by 2029. This will partly go towards “maximis[ing] deployment to fill the [CO2] storage capacity” of the first two funded clusters.
At the same time, the government also confirmed its support for the next two clusters – Acorn in north-east Scotland and Viking in the Humber in the spending review. These projects are set to be up and running in the 2030s.
The review states that the government is providing the “development funding to advance [the] delivery” of these clusters, with a final investment decision expected “later this parliament, subject to project readiness and affordability”.
Pathways set out by government advisors at the Climate Change Committee (CCC) suggest CCS is required to meet the UK’s net-zero targets.
However, the government has faced intense scrutiny over its investments in CCS. A report by the influential Public Accounts Committee earlier this year said investing public funds in this relatively undeveloped technology was a “high risk” approach.
Transport
The spending review includes a number of commitments for regional transport projects that could help cut UK emissions, including rail upgrades, bus lanes and cycleways.
Overall, the Department for Transport (DfT) settlement will reach total funding of £31.5bn in 2028-29, a slight increase from current levels. This includes support for the HS2 high-speed rail project.
HS2, which had its second phase out to Manchester cancelled under the Conservatives in 2023, will see its funding drop over the spending period.
Meanwhile, capital spending on transport projects around the country is set to experience a 4% real-terms growth rate each year out to 2029-30.
Regional transport projects receiving funding include the TransPennine Route Upgrade between York and Manchester, with £3.5bn, as well as £2.5bn for East-West Rail between Oxford and Cambridge and £300m for rail investment in Wales.
(For comparison, despite the declining funds, HS2 will receive £25.3bn over the period.)
Other relevant investments in the spending review include a commitment to “more than double” city region transport spending per year by 2029-30, by providing a total of £15.6bn for elected mayors across England. The review says this could go towards local transport priorities, including “zero-emission buses, trams and local rail”.
Additionally, there is another £2.3bn allocated for investment in local transport grants to support “bus lanes, cycleways and congestion improvement measures” for areas outside the larger regions with mayors.
The review includes a relatively small sum – £2.6bn – of capital investment that is set aside to “decarbonise transport” as “part of the government’s clean energy mission”.
This is made up of £1.4bn to “support continued uptake” of electric vehicles, in particular vans and heavy goods vehicles (HGVs), as well as £400m for charging infrastructure and £616m for walking and cycling infrastructure.
Some of these funds will also support the production of “sustainable” aviation fuel (SAF) in the UK by extending the government’s advanced fuels fund.
The spending review also includes funding for transport projects that may not help to decarbonise the nation’s transport. Notably, there is £24bn of funding by 2030 to “maintain and improve motorways and local roads across the country”.
Also, while the project is not mentioned in the spending review document itself, Reeves’s speech mentioned “backing Doncaster airport” alongside “investment to connect our cities and our towns”. (The airport is currently closed, but there has been a local political effort to reopen it.)
Other announcements
R&D funding
The government is increasing research and development (R&D) funding to £22.6bn per year by 2029-2030.
This will include funding for the UK’s science base, the spending review says, such as the non-departmental public body UK Research and Innovation and research initiative Horizon Europe.
Part of this funding will go to the government’s new R&D missions accelerator programme. Some £500m of public funds are intended to leverage a further £1.5bn of private investment in innovation that supports the government’s “missions”.
(One of the five key “missions” announced by the Labour government in its manifesto is to “make Britain a clean-energy superpower”.)
Additionally, R&D funding will include up to £750m for a new supercomputer at Edinburgh University, the largest in the UK. This will be used to support a broad range of fields, including climate and weather predictions and research into fusion power.
In a statement, secretary of state for Scotland Ian Murray welcomed the funding for the supercomputer, adding:
“This will see Scotland playing a leading role in creating breakthroughs that have a global benefit – such as new medicines, health advances and climate change solutions.”
Ahead of the publication of the delayed UK industrial strategy, the spending review lists relevant R&D commitments.
It says over £3bn in R&D and capital funding over the next four years will go to advanced manufacturing across the UK, “anchoring the supply chain of zero emission vehicles, batteries and ultra-low and zero-carbon emissions aircraft[s]”.
Clean-energy industries will also receive “significant additional funding”, it adds.
Flood defences and farming funds
As part of the spending review, the government announced investment in climate adaptation and the natural environment to “increase the UK’s resilience to the effects of climate change and protect the ecosystems that underpin the economy and food security”.
This includes £2.7bn in sustainable farming and nature recovery funding until 2028-29, as well as £4.2bn to build and maintain flood defences from 2026-27 to 2028-29.
According to the spending review, farmers will benefit from £2.3bn through the farming and countryside programme and up to £400m from additional nature schemes
There will be increasing support for “nature-friendly farming” through environmental land management schemes, which will grow from £800m in 2023-24 to £2bn by 2028-29. This will be sustained by “rapidly winding down” other subsidy payments.
The spending review states that this will make a “significant contribution” to the Environment Act targets, including improvements to water and air quality and creating spaces for wildlife to support biodiversity.
Funding for both flood defences and farm schemes follows the government stating that it was facing “significant funding pressures” of almost £600m in 2024-25 in the autumn budget.
Foreign aid and climate finance
The government announced in February that it would further cut aid spending to 0.3% of gross national income (GNI) by 2027 in order to fund higher defence spending.
This came just three months after the UK, alongside other developed countries, had committed to raising at least $300bn a year for climate action in developing countries at the COP29 climate summit.
Developed countries have traditionally used their aid budgets to meet such “climate finance” goals.
But observers have noted that scaling up climate finance to meet this new target will be difficult, as nations cut back their overseas spending and the world faces overlapping humanitarian crises.
When announcing the cut earlier this year, prime minister Keir Starmer said that the UK would retain its focus on “tackling climate change” in its aid spending. The government also acknowledged that the decision to cut aid would require “many hard choices”.
The government has a pledge to spend £11.6bn over five years on climate finance in developing countries, which ends in 2025-26. Beyond that, it is expected to announce a new pledge to feed into the $300bn goal.
The spending review does not provide details of precisely what this goal will be, or whether it will be more ambitious as other aid programmes undergo swingeing cuts.
It states that the funding plan “prioritises UK multilateral investment across issues where the international system needs to deliver at scale and to reform”, including the “climate and nature crisis”.
It also says the three departments that provide nearly all UK climate finance – the Foreign, Commonwealth and Development Office, DESNZ and Defra – will “maintain progress” on the nation’s international climate goals.
However, the amounts of aid channelled via all three of these departments will be lower in the coming years than they are now, according to the government’s figures.
Response to climate-risks report
In a separate document published alongside the spending review, the government also set out its response to the latest “fiscal risks and sustainability” (FRS) report, published by the Office for Budget in September 2024.
Within this, the government reiterates its intention to “accelerate to net-zero”, including via its target for clean power by 2030.
The response adds that, alongside this, the government recognises that it “must also take action to build resilience and ensure the UK is well-prepared for the changing climate”.
It says that FRS identified flooding and extreme heat as areas that need particular attention, before setting out its spending commitments in these areas.
The response also confirms two important dates for UK climate-policy watchers.
First, the response says the government will, in October 2025, publish its “carbon budget delivery plan”. This will set out the plans and policies the government will put in place in order to meet the first six carbon budgets, covering the years out to 2037.
Second, it says that the government will legislate for the seventh UK “carbon budget” by June 2026. This is a legally binding limit on emissions covering five years from 2038 to 2042. The CCC has recommended an 87% reduction below 1990 levels.
The post UK spending review 2025: Key climate and energy announcements appeared first on Carbon Brief.
UK spending review 2025: Key climate and energy announcements
Greenhouse Gases
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Blazing heat hits Europe
FANNING THE FLAMES: Wildfires “fanned by a heatwave and strong winds” caused havoc across southern Europe, Reuters reported. It added: “Fire has affected nearly 440,000 hectares (1,700 square miles) in the eurozone so far in 2025, double the average for the same period of the year since 2006.” Extreme heat is “breaking temperature records across Europe”, the Guardian said, with several countries reporting readings of around 40C.
HUMAN TOLL: At least three people have died in the wildfires erupting across Spain, Turkey and Albania, France24 said, adding that the fires have “displaced thousands in Greece and Albania”. Le Monde reported that a child in Italy “died of heatstroke”, while thousands were evacuated from Spain and firefighters “battled three large wildfires” in Portugal.
UK WILDFIRE RISK: The UK saw temperatures as high as 33.4C this week as England “entered its fourth heatwave”, BBC News said. The high heat is causing “nationally significant” water shortfalls, it added, “hitting farms, damaging wildlife and increasing wildfires”. The Daily Mirror noted that these conditions “could last until mid-autumn”. Scientists warn the UK faces possible “firewaves” due to climate change, BBC News also reported.
Around the world
- GRID PRESSURES: Iraq suffered a “near nationwide blackout” as elevated power demand – due to extreme temperatures of around 50C – triggered a transmission line failure, Bloomberg reported.
- ‘DIRE’ DOWN UNDER: The Australian government is keeping a climate risk assessment that contains “dire” implications for the continent “under wraps”, the Australian Financial Review said.
- EXTREME RAINFALL: Mexico City is “seeing one of its heaviest rainy seasons in years”, the Washington Post said. Downpours in the Japanese island of Kyushu “caused flooding and mudslides”, according to Politico. In Kashmir, flash floods killed 56 and left “scores missing”, the Associated Press said.
- SOUTH-SOUTH COOPERATION: China and Brazil agreed to “ensure the success” of COP30 in a recent phone call, Chinese state news agency Xinhua reported.
- PLASTIC ‘DEADLOCK’: Talks on a plastic pollution treaty have failed again at a summit in Geneva, according to the Guardian, with countries “deadlocked” on whether it should include “curbs on production and toxic chemicals”.
15
The number of times by which the most ethnically-diverse areas in England are more likely to experience extreme heat than its “least diverse” areas, according to new analysis by Carbon Brief.
Latest climate research
- As many as 13 minerals critical for low-carbon energy may face shortages under 2C pathways | Nature Climate Change
- A “scoping review” examined the impact of climate change on poor sexual and reproductive health and rights in sub-Saharan Africa | PLOS One
- A UK university cut the carbon footprint of its weekly canteen menu by 31% “without students noticing” | Nature Food
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured
Factchecking Trump’s climate report
A report commissioned by the US government to justify rolling back climate regulations contains “at least 100 false or misleading statements”, according to a Carbon Brief factcheck involving dozens of leading climate scientists. The report, compiled in two months by five hand-picked researchers, inaccurately claims that “CO2-induced warming might be less damaging economically than commonly believed” and misleadingly states that “excessively aggressive [emissions] mitigation policies could prove more detrimental than beneficial”80
Spotlight
Does Xi Jinping care about climate change?
This week, Carbon Brief unpacks new research on Chinese president Xi Jinping’s policy priorities.
On this day in 2005, Xi Jinping, a local official in eastern China, made an unplanned speech when touring a small village – a rare occurrence in China’s highly-choreographed political culture.
In it, he observed that “lucid waters and lush mountains are mountains of silver and gold” – that is, the environment cannot be sacrificed for the sake of growth.
(The full text of the speech is not available, although Xi discussed the concept in a brief newspaper column – see below – a few days later.)
In a time where most government officials were laser-focused on delivering economic growth, this message was highly unusual.
Forward-thinking on environment
As a local official in the early 2000s, Xi endorsed the concept of “green GDP”, which integrates the value of natural resources and the environment into GDP calculations.
He also penned a regular newspaper column, 22 of which discussed environmental protection – although “climate change” was never mentioned.
This focus carried over to China’s national agenda when Xi became president.
New research from the Asia Society Policy Institute tracked policies in which Xi is reported by state media to have “personally” taken action.
It found that environmental protection is one of six topics in which he is often said to have directly steered policymaking.
Such policies include guidelines to build a “Beautiful China”, the creation of an environmental protection inspection team and the “three-north shelterbelt” afforestation programme.
“It’s important to know what Xi’s priorities are because the top leader wields outsized influence in the Chinese political system,” Neil Thomas, Asia Society Policy Institute fellow and report co-author, told Carbon Brief.
Local policymakers are “more likely” to invest resources in addressing policies they know have Xi’s attention, to increase their chances for promotion, he added.
What about climate and energy?
However, the research noted, climate and energy policies have not been publicised as bearing Xi’s personal touch.
“I think Xi prioritises environmental protection more than climate change because reducing pollution is an issue of social stability,” Thomas said, noting that “smoggy skies and polluted rivers” were more visible and more likely to trigger civil society pushback than gradual temperature increases.
The paper also said topics might not be linked to Xi personally when they are “too technical” or “politically sensitive”.
For example, Xi’s landmark decision for China to achieve carbon neutrality by 2060 is widely reported as having only been made after climate modelling – facilitated by former climate envoy Xie Zhenhua – showed that this goal was achievable.
Prior to this, Xi had never spoken publicly about carbon neutrality.
Prof Alex Wang, a University of California, Los Angeles professor of law not involved in the research, noted that emphasising Xi’s personal attention may signal “top” political priorities, but not necessarily Xi’s “personal interests”.
By not emphasising climate, he said, Xi may be trying to avoid “pushing the system to overprioritise climate to the exclusion of the other priorities”.
There are other ways to know where climate ranks on the policy agenda, Thomas noted:
“Climate watchers should look at what Xi says, what Xi does and what policies Xi authorises in the name of the ‘central committee’. Is Xi talking more about climate? Is Xi establishing institutions and convening meetings that focus on climate? Is climate becoming a more prominent theme in top-level documents?”
Watch, read, listen
TRUMP EFFECT: The Columbia Energy Exchange podcast examined how pressure from US tariffs could affect India’s clean energy transition.
NAMIBIAN ‘DESTRUCTION’: The National Observer investigated the failure to address “human rights abuses and environmental destruction” claims against a Canadian oil company in Namibia.
‘RED AI’: The Network for the Digital Economy and the Environment studied the state of current research on “Red AI”, or the “negative environmental implications of AI”.
Coming up
- 17 August: Bolivian general elections
- 18-29 August: Preparatory talks on the entry into force of the “High Seas Treaty”, New York
- 18-22 August: Y20 Summit, Johannesburg
- 21 August: Advancing the “Africa clean air programme” through Africa-Asia collaboration, Yokohama
Pick of the jobs
- Lancaster Environment Centre, senior research associate: JUST Centre | Salary: £39,355-£45,413. Location: Lancaster, UK
- Environmental Justice Foundation, communications and media officer, Francophone Africa | Salary: XOF600,000-XOF800,000. Location: Dakar, Senegal
- Politico, energy & climate editor | Salary: Unknown. Location: Brussels, Belgium
- EnviroCatalysts, meteorologist | Salary: Unknown. Location: New Delhi, India
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 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report appeared first on Carbon Brief.
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
Greenhouse Gases
Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund
We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.
This is an online version of Carbon Brief’s fortnightly Cropped email newsletter. Subscribe for free here.
Key developments
‘Deadly’ wildfires
WINE BRAKE: France experienced its “largest wildfire in decades”, which scorched more than 16,000 hectares in the country’s southern Aude region, the Associated Press said. “Gusting winds” fanned the flames, Reuters reported, but local winemakers and mayors also “blam[ed] the loss of vineyards”, which can act as a “natural, moisture-filled brake against wildfires”, for the fire’s rapid spread. It added that thousands of hectares of vineyards were removed in Aude over the past year. Meanwhile, thousands of people were evacuated from “deadly” wildfires in Spain, the Guardian said, with blazes ongoing in other parts of Europe.
MAJOR FIRES: Canada is experiencing its second-worst wildfire season on record, CBC News reported. More than 7.3m hectares burned in 2025, “more than double the 10-year average for this time of year”, the broadcaster said. The past three fire seasons were “among the 10 worst on record”, CBC News added. Dr Mike Flannigan from Thompson Rivers University told the Guardian: “This is our new reality…The warmer it gets, the more fires we see.” Elsewhere, the UK is experiencing a record year for wildfires, with more than 40,000 hectares of land burned so far in 2025, according to Carbon Brief.
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Sign up to Carbon Brief’s free “Cropped” email newsletter. A fortnightly digest of food, land and nature news and views. Sent to your inbox every other Wednesday.
WESTERN US: The US state of Colorado has recorded one of its largest wildfires in history in recent days, the Guardian said. The fire “charred” more than 43,300 hectares of land and led to the temporary evacuation of 179 inmates from a prison, the newspaper said. In California, a fire broke out “during a heatwave” and burned more than 2,000 hectares before it was contained, the Los Angeles Times reported. BBC News noted: “Wildfires have become more frequent in California, with experts citing climate change as a key factor. Hotter, drier conditions have made fire seasons longer and more destructive.”
FIRE FUNDING: “Worsening fires” in the Brazilian Amazon threaten new rainforest funding proposals due to be announced at the COP30 climate summit later this year, experts told Climate Home News. The new initiatives include the Tropical Forests Forever Facility, which the outlet said “aims to generate a flow of international investment to pay countries annually in proportion to their preserved tropical forests”. The outlet added: “If fires in the Amazon continue to worsen in the years to come, eligibility for funding could be jeopardised, Brazil’s environment ministry acknowledged.”
Farming impacts
OUT OF ORBIT: US president Donald Trump moved to “shut down” two space missions which monitor carbon dioxide and plant health, the Associated Press reported. Ending these NASA missions would “potentially shu[t] off an important source of data for scientists, policymakers and farmers”, the outlet said. Dr David Crisp, a retired NASA scientist, said the missions can detect the “glow” of plant growth, which the outlet noted “helps monitor drought and predict food shortages that can lead to civil unrest and famine”.
FARM EXTREMES: Elsewhere, Reuters said that some farmers are considering “abandoning” a “drought-hit” agricultural area in Hungary as “climate change cuts crop yields and reduces groundwater levels”. Scientists warned that rising temperatures and low rainfall threaten the region’s “agricultural viability”, the newswire added. Meanwhile, the Premium Times in Nigeria said that some farmers are “harvest[ing] crops prematurely” due to flooding fears. A community in the south-eastern state of Imo “has endured recurrent floods, which wash away crops and incomes alike” over the past decade, the newspaper noted.
SECURITY RISKS: Food supply chains in the UK face “escalating threats from climate impacts and the migration they are triggering”, according to a report covered by Business Green. The outlet said that £3bn worth of UK food imports originated from the 20 countries “with the highest numbers of climate-driven displacements” in 2024, based on analysis from the Energy and Climate Intelligence Unit. The analysis highlighted that “climate impacts on food imports pose a threat to UK food security”. Elsewhere, an opinion piece in Dialogue Earth explored how the “role of gender equity in food security remains critically unaddressed”.
Spotlight
Fossil-fuelled bird decline
This week, Carbon Brief covers a new study tracing the impact of fossil-fuelled climate change on tropical birds.
Over the past few years, biologists have recorded sharp declines in bird numbers across tropical rainforests – even in areas untouched by humans – with the cause remaining a mystery.
A new study published this week in Nature Ecology and Evolution could help to shed light on this alarming phenomenon.
The research combined ecological and climate attribution techniques for the first time to trace the fingerprint of fossil-fuelled climate change on declining bird populations.
It found that an increase in heat extremes driven by climate change has caused tropical bird populations to decline by 25-38% in the period 1950-2020, when compared to a world without warming.
In their paper, the authors noted that birds in the tropics could be living close to their “thermal limits”.
Study lead author Dr Maximilian Kotz, a climate scientist at the Barcelona Supercomputing Center in Spain, explained to Carbon Brief:
“High temperature extremes can induce direct mortality in bird populations due to hyperthermia and dehydration. Even when they don’t [kill birds immediately], there’s evidence that this can then affect body condition which, in turn, affects breeding behaviour and success.”
Conservation implications
The findings have “potential ramifications” for commonly proposed conservation strategies, such as increasing the amount of land in the tropics that is protected for nature, the authors said. In their paper, they continued:
“While we do not disagree that these strategies are necessary for abating tropical habitat loss…our research shows there is now an additional urgent need to investigate strategies that can allow for the persistence of tropical species that are vulnerable to heat extremes.”
In some parts of the world, scientists and conservationists are looking into how to protect wildlife from more intense and frequent climate extremes, Kotz said.
He referenced one project in Australia which is working to protect threatened wildlife following periods of extreme heat, drought and bushfires.
Prof Alex Pigot, a biodiversity scientist at University College London (UCL), who was not involved in the research, said the findings reinforced the need to systematically monitor the impact of extreme weather on wildlife. He told Carbon Brief:
“We urgently need to develop early warning systems to be able to anticipate in advance where and when extreme heatwaves and droughts are likely to impact populations – and also rapidly scale up our monitoring of species and ecosystems so that we can reliably detect these effects.”
There is further coverage of this research on Carbon Brief’s website.
News and views
EMPTY CALI FUND: A major voluntary fund for biodiversity remains empty more than five months after its launch, Carbon Brief revealed. The Cali Fund, agreed at the COP16 biodiversity negotiations last year, was set up for companies who rely on nature’s resources to share some of their earnings with the countries where many of these resources originate. Big pharmaceutical companies did not take up on opportunities to commit to contributing to the fund or be involved in its launch in February 2025, emails released to Carbon Brief showed. Just one US biotechnology firm has pledged to contribute to the fund in the future.
LOSING HOPE: Western Australia’s Ningaloo reef – long considered a “hope spot” among the country’s coral reefs for evading major bleaching events – is facing its “worst-ever coral bleaching”, Australia’s ABC News reported. The ocean around Ningaloo has been “abnormally” warm since December, resulting in “unprecedented” bleaching and mortality, a research scientist told the outlet. According to marine ecologist Dr Damian Thomson, “up to 50% of the examined coral was dead in May”, the Sydney Morning Herald said. Thomson told the newspaper: “You realise your children are probably never going to see Ningaloo the way you saw it.”
‘DEVASTATION BILL’: Brazil’s president, Luiz Inácio Lula da Silva, signed a “contentious” environmental bill into law, but “partially vetoed” some of the widely criticised elements, the Financial Times reported. Critics, who dubbed it the “devastation bill”, said it “risked fuelling deforestation and would harm Brazil’s ecological credentials” just months before hosting the COP30 climate summit. The newspaper said: “The leftist leader struck down or altered 63 of 400 provisions in the legislation, which was designed to speed up and modernise environmental licensing for new business and infrastructure developments.” The vetoes need to be approved by congress, “where Lula lacks a majority”, the newspaper noted.
RAINFOREST DRILLING: The EU has advised the Democratic Republic of the Congo (DRC) against allowing oil drilling in a vast stretch of rainforest and peatland that was jointly designated a “green corridor” earlier this year, Climate Home News reported. In May, the DRC announced that it planned to open the conservation area for drilling, the publication said. A spokesperson for the European Commission told Climate Home News that the bloc “fully acknowledges and respects the DRC’s sovereign right to utilise its diverse resources for economic development”, but that it “highlights the fact that green alternatives have facilitated the protection of certain areas”.
NEW PLAN FOR WETLANDS: During the 15th meeting of the Ramsar Convention on Wetlands, held in Zimbabwe from 23 to 31 July, countries agreed on the adoption of a new 10-year strategic plan for conserving and sustainably using the world’s wetlands. Down to Earth reported that 13 resolutions were adopted, including “enhancing monitoring and reporting, capacity building and mobilisation of resources”. During the talks, Zimbabwe’s environment minister announced plans to restore 250,000 hectares of degraded wetlands by 2030 and Saudi Arabia entered the Convention on Wetlands. Panamá will host the next COP on wetlands in July 2028.
MEAT MADNESS: DeSmog covered the details of a 2021 public relations document that revealed how the meat industry is trying to “make beef seem climate-friendly”. The industry “may have enlisted environmental groups to persuade people to ‘feel better’ about eating beef”, the outlet said, based on this document. The strategy was created by a communications agency, MHP Group, and addressed to the Global Roundtable for Sustainable Beef. One of the key messages of the plan was to communicate the “growing momentum in the beef industry to protect and nurture the Earth’s natural resources”. MHP Group did not respond to a request for comment, according to DeSmog.
Watch, read, listen
MAKING WAVES: A livestream of deep-sea “crustaceans, sponges and sea cucumbers” has “captivated” people in Argentina, the New York Times outlined.
BAFFLING BIRDS: The Times explored the backstory to the tens of thousands of “exotic-looking” parakeets found in parks across Britain.
PLANT-BASED POWER: In the Conversation, Prof Paul Behrens outlined how switching to a plant-based diet could help the UK meet its climate and health targets.
MARINE DISCRIMINATION: Nature spoke to a US-based graduate student who co-founded Minorities in Shark Science about her experiences of racism and sexism in the research field.
New science
- Applying biochar – a type of charcoal – to soils each year over a long period of time can have “sustained benefits for crop yield and greenhouse gas mitigation”, according to a Proceedings of the National Academy of Sciences study.
- New research, published in PLOS Climate, found that nearly one-third of highly migratory fish species in the US waters of the Atlantic Ocean have “high” or “very high” vulnerability to climate change, but the majority of species have “some level of resilience and adaptability”.
- A study in Communications Earth & Environment found a “notable greening trend” in China’s wetlands over 2000-23, with an increasing amount of carbon being stored in the plants growing there.
In the diary
- 18-29 August: Second meeting of the preparatory commission for the Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction | New York
- 24-28 August: World Water Week | Online and Stockholm, Sweden
- 26-29 August: Sixth forum of ministers and environment authorities of Asia Pacific | Nadi, Fiji
Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz. Please send tips and feedback to cropped@carbonbrief.org
The post Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund appeared first on Carbon Brief.
Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund
CCL submits a formal comment on EPA’s proposed endangerment finding rollback
By Dana Nuccitelli, CCL Research Manager
On July 29, the EPA proposed to rescind its 2009 endangerment finding that forms the basis of all federal climate pollution regulations.
Without the endangerment finding, the EPA may not be allowed or able to regulate greenhouse gas pollution from sources like power plants or vehicle tailpipes, as they have done for years. News coverage has framed this as a “radical transformation” and a “bid to scrap almost all pollution regulations,” so it has appropriately alarmed many folks in the climate and environment space.
At CCL, we focus our efforts on working with Congress to implement durable climate policies, and so we don’t normally take actions on issues like this that relate to federal agencies or the courts. Other organizations focus their efforts on those branches of the government and are better equipped to spearhead this type of moment, and we appreciate those allies.
But in this case, we did see an opportunity for CCL’s voice — and our focus on Congress — to play a role here. We decided to submit a formal comment on this EPA action for two reasons.
First, this decision could have an immense impact by eliminating every federal regulation of climate pollutants in a worst case scenario. Second, this move relates to our work because the EPA is misinterpreting the text and intent of laws passed by Congress. Our representatives have done their jobs by passing legislation over the past many decades that supports and further codifies the EPA’s mandate to regulate climate pollution. That includes the Clean Air Act, and more recently, the Inflation Reduction Act. We at CCL wanted to support our members of Congress by making these points in a formal comment.
There has been a tremendous public response to this action. In just over one week, the EPA already received over 44,000 public comments on its decision, and the public comment period will remain open for another five weeks, until September 15.
To understand more about the details and potential outcomes of the EPA’s actions, read my article on the subject at Yale Climate Connections, our discussion on CCL Community, and CCL’s formal comment, which represents our entire organization. As our comment concludes,
“In its justifications for rescinding the 2009 endangerment finding, the Reconsideration has misinterpreted the text of the Clean Air Act, Congress’ decadeslong support for the EPA’s mandate to regulate greenhouse gas emissions from motor vehicles and other major sources, and the vast body of peer-reviewed climate science research that documents the increasingly dangerous threats that those emissions pose to Americans’ health and welfare. Because the bases of these justifications are fundamentally flawed, CCL urges the EPA to withdraw its ill-conceived Reconsideration of the 2009 endangerment finding. The EPA has both the authority and the responsibility to act. Americans cannot afford a retreat from science, law, and common sense in the face of a rapidly accelerating climate crisis.”
After the EPA responds to the public comment record and finalizes its decision, this issue will ultimately be decided by the Supreme Court several years from now.
In the meantime, CCL will continue to focus our efforts on areas where we can make the biggest difference in preserving a livable climate. Right now, that involves contacting our members of Congress to urge them to fully fund key climate and energy programs and protect critical work at the National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA), and Department of Energy. We’ve set an ambitious goal of sending 10,000 messages to our members of Congress, so let’s all do what CCL does best and make our voices heard on this critical issue.
This action by the EPA also reminds us that federal regulations are fragile. They tend to change with each new administration coming into the White House. Legislation passed by Congress – especially when done on a bipartisan basis – is much more durable. That’s why CCL’s work, as one of very few organizations engaging in nonpartisan advocacy for long-lasting climate legislation, is so critical.
That’s especially true right now when we’re seeing the Trump administration slam shut every executive branch door to addressing climate change. We need Congress to step up now more than ever to implement durable solutions like funding key climate and energy programs, negotiating a new bipartisan comprehensive permitting reform bill, implementing healthy forest solutions like the Fix Our Forests Act, and advancing conversations about policies to put a price on carbon pollution. Those are the kinds of effective, durable, bipartisan climate solutions that CCL is uniquely poised to help become law and make a real difference in preserving a livable climate.
For other examples of how CCL is using our grassroots power to help ensure that Congress stays effective on climate in this political landscape, see our full “Holding the Line on Climate” blog series.
The post Holding the line on climate: EPA appeared first on Citizens' Climate Lobby.
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