The “vast majority” of the UK government’s plans to prepare for climate hazards have made virtually no progress over the past two years, according to the Climate Change Committee (CCC).
In that time, the world has experienced the hottest year on record, while England has seen its wettest ever 18-month stretch between 2022 and 2024.
(Climate adaptation – outside of some issues such as defence – is mostly a devolved matter, with separate plans in place from the administrations for Scotland, Wales and Northern Ireland.)
The previous government introduced a new adaptation strategy for England in 2023, covering plans for rising temperatures and more extreme weather in the country.
However, in its latest analysis of the government’s progress, the CCC states that the current approach to adaptation in England is “not working” and requires “urgent strengthening”.
The government is failing to make “good” progress in adapting to climate change on any of the 46 outcomes measured by the committee, ranging from better healthcare during heatwaves to preparing financial institutions for climate risk.
The report marks the latest in a series of appraisals by the CCC that have repeatedly identified large gaps in the nation’s adaptation efforts.
This time, with a relatively new Labour government that has said it will act on adaptation, the committee says its report “must serve as the turning point”.
But the CCC also says it is “seriously concerned” that the government will cut funding for adaptation, ultimately leading to much higher future costs as temperatures continue to rise.
- Climate adaptation is ‘vital’
- What progress has been made?
- What does the CCC recommend?
- How prepared are different sectors for climate change?
Climate adaptation is ‘vital’
There is “unequivocal evidence” that climate change is already making extreme weather in the UK “more likely and more extreme”, the CCC says.
The report lays out major risks facing the country, noting that the number of properties at risk from flooding is set to increase from 6.3m today to 8m by 2050. Roads and railways at risk from flooding could increase from a third of the total length to half over the same timeframe.
At least 59% of top-quality farmland is already at risk from flooding, the report says, adding that this could also increase over the coming decades.
Meanwhile, annual heat-related deaths could increase “several times over” to pass 10,000 in an average year by 2050, the CCC says.
It also cites an Office for Budget Responsibility (OBR) report from 2024 that concludes the UK’s GDP could be around 3% lower by 2074, even under the Paris Agreement’s “below 2C” goal. It says this could increase to 5% in a “below 3C” scenario, according to the OBR.
High-quality climate adaptation is therefore “vital to ensure that these risks are managed most efficiently and at least cost”, according to the committee. Otherwise, government policy could “lock in” risks or even make them worse.
The CCC reports on adaptation progress in England every two years, as required under the 2008 Climate Change Act. These reports have consistently highlighted adaptation as an issue that has been “underfunded and ignored” by successive governments.
There have been a few major developments since the committee’s last report.
Notably, the previous Conservative government launched its third national adaptation programme (NAP3), which is the cornerstone of the nation’s adaptation policy, in summer 2023. (NAP3 covers adaptation policy in England, as well as non-devolved issues that affect the whole UK, such as defence.)
In a highly critical initial appraisal of the programme, the CCC concluded that it fell “far short of what is needed” and “must be strengthened”. NAP3 has also faced an ultimately unsuccessful legal challenge from activists, arguing that it breached people’s human rights.
Another big development since the committee’s last report is Labour winning the general election in 2024. The CCC acknowledges that the new government “inherited a NAP that fell short of the task”, but says it finds “little evidence of a change of course”.
What progress has been made?
The report looks at both the “policies and plans” underpinning climate adaptation, as well as the actual “delivery and implementation” of those plans. It states:
“Whilst there is some evidence of policies and plans improving [since 2023], it is clear that NAP3 has been ineffective in driving the critical shift towards effective delivery of adaptation.”
The CCC assesses the planning and delivery of 46 outcomes from adaptation policy across five overarching themes. It scores them using roughly the same monitoring framework used in its last report in 2023.
It notes that 11 policies and plans have improved over the past two years, including a new adaptation strategy from the Ministry of Justice and a green finance strategy.
Over the same period, it says four have gotten worse, among them investment in flood protection projects, as “plans no longer align with their stated objectives”.
The lack of significant improvement between 2023 and 2025, based on the CCC’s scoring system, can be seen in the chart below.
As for the government actually delivering on its plans, the CCC says the “vast majority of our outcomes have received the same score as in 2023, most at low levels”.
The small number of improvements mainly relate to the latest round of implementation of the “adaptation reporting power”, which allows the government to ask infrastructure providers to disclose how they deal with climate risks.
The chart below, which compares the scores given to different adaptation outcomes between 2023 and 2025, demonstrates the lack of progress in the intervening years.
The CCC concludes that none of the outcomes could be classified as making “good” progress, in terms of delivery. Only four of them saw improvements over this period.
It highlights the water supply as an area where there has been backsliding over the past two years, noting that “continued slow rate of leakage reduction is now clearly inconsistent with meeting the sector’s targets”.
The CCC also points out that “tracking progress on adaptation remains challenging due to limited national-scale, up-to-date and relevant data”.
While there has been an improvement since 2023, nine of the 46 assessed outcomes for England still lacked enough evidence to assess progress, the report says.
These include important areas such as the impact of climate change on food supplies and the vulnerability of telecommunications and information and communication technology (ICT) assets.
In addition, ahead of NAP3, the CCC recommended – as part of its 2023 progress report – a list of 89 actions to close what it viewed as “policy gaps in government’s adaptation planning”.
It suggested that these could be dealt with either in NAP3 itself, or as part of other policy programmes.
However, only four of these recommendations have been achieved, with a further 14 seeing “partial progress”.
The report highlights food security, community preparedness and buildings as some of the areas where the government did not follow through on its recommendations.
What does the CCC recommend?
The CCC’s report echoes previous advice that, despite some improvements in NAP3 on previous efforts, the nation’s climate adaptation strategy needs an overhaul:
“The UK’s current approach to adaptation policy making is not working. Adaptation is not the cross-government priority that it needs to be, which is holding back delivery.”
NAP3 covers a five-year period from 2023 to 2028. With the latest report coming at a halfway point in this cycle, the committee says it “must serve as the turning point” for the government on climate adaptation.
As part of the “urgent strengthening” suggested in the report, the committee sets out key areas that it says should be improved.
“Adaptation” can mean different things in different contexts. The CCC stresses the need for a set of “specific and measurable sectoral targets” that can be used to guide progress, with clarity on how to monitor them and who is responsible.
The government has signalled its intention to strengthen adaptation objectives. The committee says that such objectives “must” be developed as a priority, no later than the end of 2025.
The CCC report highlights the “data gaps” that need to be closed, with “monitoring and evaluation…still not treated with sufficient urgency”. It says the government should direct relevant agencies to collect data on climate risks and the delivery of adaptation measures.
Adaptation is a topic that affects every area of government, from healthcare to education. Yet the CCC highlights that there is not enough coordination of activities between departments and says this should be improved.
In order to carry out adaptation policies, the CCC also stresses that the government “needs to ensure sufficient funding is available” as it undertakes its spending review. Baroness Brown, chair of the CCC’s adaptation committee, told journalists in a press briefing:
“We are seriously concerned that resilience and climate adaptation may be cut in the spending review. [The] government needs to recognise that this is not a future problem, this is today’s problem…I know the government is under a lot of pressure to make cuts, but this isn’t the easy one.”
Given the cost of future climate risk, the committee stresses that ignoring adaptation would not, ultimately, save money. In fact, acting early would “minimise the overall costs of tackling climate change”, it explains.
In the press briefing, CCC chief executive Emma Pinchbeck emphasised the “real need” for the government to think about the future when implementing key policies, such as home-building programmes and other major infrastructure developments.
“If you think about potential waste in terms of investment into the NHS, if we then have to retrofit hospitals to make them cooler,” she said, as an example.
How prepared are different sectors for climate change?
The CCC progress report looks at specific outcomes broken down across five broad sectors.
Within these, it highlights key problems and makes specific recommendations for each area.
Land, nature and food
The CCC highlights various “foundational” strategies covering farming and land that the Department for Environment, Food and Rural Affairs (Defra) is expected to publish in the coming months, including the land-use framework and the food strategy.
Delays in publishing such documents have “hampered” adaptation progress. However, the report highlights them as opportunities to set out clear objectives and responsibilities for the sector.
As it stands, important issues such as boosting climate-resilient farming and protecting food supply chains are rated “insufficient” for both government planning and implementation.
The CCC highlights the relatively new “environmental land management schemes” (Elms), which constitute England’s successor to the EU’s farm payments policy.
The report says these schemes lack guidance for climate adaptation, adding that the government should provide “certainty” about how much farmers will be paid for such measures.
As for the fishing industry, the report has downgraded its climate-adaptation plans, noting that they “no longer look credible”. It says the government’s marine strategy, published earlier this year, “does not include any specific or targeted adaptation actions”.
Infrastructure
According to the CCC, when the government publishes its 10-year infrastructure strategy, it should set out “clear resilience standards” for new infrastructure projects.
It also notes that major funding packages – for new roads and electricity networks, for example – should include incentives to fund climate adaptation.
Two out of the three adaptation policies that are scored as “good” are in the infrastructure sector, namely the plans for maintaining reliability in the road and rail networks.
Despite this, actual progress in improving transport resilience is largely “stagnant”, the committee says. It highlights increased flooding on railways and an increased number of roads deemed “susceptible” to flooding.
This is also the sector that has seen the most improvement in terms of delivery and implementation. The water, energy, telecommunications and transport sectors are all described as improving the identification and management of “interdependencies”.
This refers to better evidence of links between different sectors, which is being unveiled via adaptation reporting power. Notably, none of the sectors that have seen improvements are rated as “good”, indicating they still have work to do in this area.
Built environment and communities
Flooding is highlighted as the key risk facing many communities around England.
While the Environment Agency-led flood defence programme has been successful, “its budget in real terms is shrinking as risks are escalating, meaning delivery is falling short of targets and the condition of flood defence assets is declining”, according to the CCC.
The government’s investment programme needs “long-term” targets for cutting the risk posed by floods and coastal erosion, supported by sufficient funds, the report concludes.
It also recommends a “long-term cross-sector plan to manage future heat risk and drive joined-up action”.
The CCC is currently unable to track many of the important measures around heat risk, such as how many buildings are overheating, due to a lack of data.
Overall, none of the efforts to implement better protections for homes and communities have seen any positive change since 2023, despite this being a record period of heat and flooding.
Health and wellbeing
The CCC notes that there are only “limited” policies and plans in place to protect population health and healthcare delivery in the face of escalating climate hazards.
Extreme heat is the main risk identified in this context. As it stands, there are long-term, increasing trends of heat-associated deaths and overheating in hospital settings, the committee says.
In this context, the report recommends that the government develop an “improved climate and public health adaptation plan” that builds on the existing adverse weather and health plan.
Also, as part of the government’s decade-long plan to improve the NHS, the CCC says any upgrades must “make it more resilient to climate extremes today and in the future”.
Economy
The committee says that while businesses can take action to protect their own affairs from climate change, “barriers remain” and adaptation finance “remains nascent”.
It therefore highlights an important role for the government in removing these barriers, providing high-quality information and “correcting market failures”.
The report recommends setting up a portal for adaptation-related data that can be accessed by companies.
It also says the government should ensure that the UK’s sustainable disclosure requirements incorporate “adaptation-related disclosure”, to better prepare the private sector for climate risks.
The CCC also points out that an adaptation finance “deliverables and action plan”, promised for 2024, has not been produced. Among other things, this plan should lay out ways to “mobilise” private investment into adaptation projects, it adds.
The post CCC: England’s approach to climate adaptation is ‘not working’ appeared first on Carbon Brief.
CCC: England’s approach to climate adaptation is ‘not working’
In 2026, the dangers of fossil fuel dependence have been laid bare like never before. The illegal invasion of Iran has brought pain and destruction to millions across the Middle East and triggered a global energy crisis impacting us all. Communities in the Pacific have been hit especially hard by rising fuel prices, and Australians have seen their cost-of-living woes deepen.
Such moments of crisis and upheaval can lead to positive transformation. But only when leaders act with courage and foresight.
There is no clearer statement of a government’s plans and priorities for the nation than its budget — how it plans to raise money, and what services, communities, and industries it will invest in.
As we count down the days to the 2026-27 Federal Budget, will the Albanese Government deliver a budget for our times? One that starts breaking the shackles of fossil fuels, accelerates the shift to clean energy, protects nature, and sees us work together with other countries towards a safer future for all? Or one that doubles down on coal and gas, locks in more climate chaos, and keeps us beholden to the whims of tyrants and billionaires.
Here’s what we think the moment demands, and what we’ll be looking out for when Treasurer Jim Chalmers steps up to the dispatch box on 12 May.
1. Stop fuelling the fire
2. Make big polluters pay
3. Support everyone to be part of the solution
4. Build the industries of the future
5. Build community resilience
6. Be a better neighbour
7. Protect nature
1. Stop fuelling the fire
In mid-April, Pacific governments and civil society met to redouble their efforts towards a Fossil Fuel Free Pacific. Moving beyond coal, oil and gas is fundamental to limiting warming to 1.5°C — a survival line for vulnerable communities and ecosystems. And as our Head of Pacific, Shiva Gounden, explained, it is “also a path of liberation that frees us from expensive, extractive and polluting fossil fuel imports and uplifts our communities”.
Pacific countries are at the forefront of growing global momentum towards a just transition away from fossil fuels, and it is way past time for Australia to get with the program. It is no longer a question of whether fossil fuel extraction will end, but whether that end will be appropriately managed and see communities supported through the transition, or whether it will be chaotic and disruptive.
So will this budget support the transition away from fossil fuels, or will it continue to prop up coal and gas?
When it comes to sensible moves the government can make right now, one stands out as a genuine low hanging fruit. Mining companies get a full rebate of the excise (or tax) that the rest of us pay on diesel fuel. This lowers their operating costs and acts as a large, ongoing subsidy on fossil fuel production — to the tune of $11 billion a year!
Greenpeace has long called for coal and gas companies to be removed from this outdated scheme, and for the billions in savings to be used to support the clean energy transition and to assist communities with adapting to the impacts of climate change. Will we see the government finally make this long overdue change, or will it once again cave to the fossil fuel lobby?
2. Make big polluters pay
While our communities continue to suffer the escalating costs of climate-fuelled disasters, our Government continues to support a massive expansion of Australia’s export gas industry. Gas is a dangerous fossil fuel, with every tonne of Australian gas adding to the global heating that endangers us all.
Moreover, companies like Santos and Woodside pay very little tax for the privilege of digging up and selling Australians’ natural endowment of fossil gas. Remarkably, the Government currently raises more tax from beer than from the Petroleum Resource Rent Tax (PRRT) — the main tax on gas profits.
Momentum has been building to replace or supplement the PRRT with a 25% tax on gas exports. This could raise up to $17 billion a year — funds that, like savings from removing the diesel tax rebate for coal and gas companies, could be spent on supporting the clean energy transition and assisting communities with adapting to worsening fires, floods, heatwaves and other impacts of climate change.
As politicians arrive in Canberra for budget week, they will be confronted by billboards calling for a fair tax on gas exports. The push now has the support of dozens of organisations and a growing number of politicians. Let’s hope the Treasurer seizes this rare window for reform.
3. Support everyone to be part of the solution
As the price of petrol and diesel rises, electric vehicles (EVs) are helping people cut fuel use and save money. However, while EV sales have jumped since the invasion of Iran sent fuel prices rising, they still only make up a fraction of total new car sales. This budget should help more Australians switch to electric vehicles and, even more importantly, enable more Australians to get around by bike, on foot, and on public transport. This means maintaining the EV discount, investing in public and active transport, and removing tax breaks for fuel-hungry utes and vans.
Millions of Australians already enjoy the cost-saving benefits of rooftop solar, batteries, and getting off gas. This budget should enable more households, and in particular those on lower incomes, to access these benefits. This means maintaining the Cheaper Home Batteries Program, and building on the Household Energy Upgrades Fund.
4. Build the industries of the future
If we’re to transition away from fossil fuels, we need to be building the clean industries of the future.
No state is more pivotal to Australia’s energy and industrial transformation than Western Australia. The state has unrivaled potential for renewable energy development and for replacing fossil fuel exports with clean exports like green iron. Such industries offer Western Australia the promise of a vibrant economic future, and for Australia to play an outsized positive role in the world’s efforts to reduce emissions.
However, realising this potential will require focussed support from the Federal Government. Among other measures, Greenpeace has recommended establishing the Australasian Green Iron Corporation as a joint venture between the Australian and Western Australian governments, a key trading partner, a major iron ore miner and steel makers. This would unite these central players around the complex task of building a large-scale green iron industry, and unleash Western Australia’s potential as a green industrial powerhouse.
5. Build community resilience
Believe it or not, our Government continues to spend far more on subsidising fossil fuel production — and on clearing up after climate-fuelled disasters — than it does on helping communities and industries reduce disaster costs through practical, proven methods for building their resilience.
Last year, the Government estimated that the cost of recovery from disasters like the devastating 2022 east coast floods on 2019-20 fires will rise to $13.5 billion. For contrast, the Government’s Disaster Ready Fund – the main national source of funding for disaster resilience – invests just $200 million a year in grants to support disaster preparedness and resilience building. This is despite the Government’s own National Emergency Management Agency (NEMA) estimating that for every dollar spent on disaster risk reduction, there is a $9.60 return on investment.
By redirecting funds currently spent on subsidising fossil fuel production, the Government can both stop incentivising climate destruction in the first place, and ensure that Australian communities and industries are better protected from worsening climate extremes.
No communities have more to lose from climate damage, or carry more knowledge of practical solutions, than Aboriginal and Torres Strait Islander peoples. The budget should include a dedicated First Nations climate adaptation fund, ensuring First Nations communities can develop solutions on their own terms, and access the support they need with adapting to extreme heat, coastal erosion and other escalating challenges.
6. Be a better neighbour
The global response to climate change depends on the adequate flow of support from developed economies like Australia to lower income nations with shifting to clean energy, adapting to the impacts of climate change, and addressing loss and damage.
Such support is vital to building trust and cooperation, reducing global emissions, and supporting regional and global security by enabling countries to transition away from fossil fuels and build greater resilience.
Despite its central leadership role in this year’s global climate negotiations, our Government is yet to announce its contribution to international climate finance for 2025-2030. Greenpeace recommends a commitment of $11 billion for this five year period, which is aligned with the global goal under the Paris Agreement to triple international climate finance from current levels.
This new commitment should include additional funding to address loss and damage from climate change and a substantial contribution to the Pacific Resilience Facility, ensuring support is accessible to countries and communities that need it most. It should also see Australia get firmly behind the vision of a Fossil Fuel Free Pacific.
7. Protect nature
There is no safe planet without protection of the ecosystems and biodiversity that sustain us and regulate our climate.
Last year the Parliament passed important and long overdue reforms to our national environment laws to ensure better protection for our forests and other critical ecosystems. However, the Government will need to provide sufficient funding to ensure the effective implementation of these reforms.
Greenpeace has recommended $500 million over four years to establish the National Environment Agency — the body responsible for enforcing and monitoring the new laws — and a further $50 million to Environment Information Australia for providing critical information and tools.
Further resourcing will also be required to fulfil the crucial goal of fully protecting 30% of Australian land and seas by 2030. This should include $1 billion towards ending deforestation by enabling farmers and loggers to retool away from destructive practices, $2 billion a year for restoring degraded lands, $5 billion for purchasing and creating new protected areas, and $200 million for expanding domestic and international marine protected areas.
Conclusion
This is not the first time that conflict overseas has triggered an energy crisis, or that a budget has been preceded by a summer of extreme weather disasters, highlighting the urgent need to phase out fossil fuels. What’s different in 2026 is the availability of solutions. Renewable energy is now cheaper and more accessible than ever before. Global momentum is firmly behind the transition away from fossil fuels. The Albanese Government, with its overwhelming majority, has the chance to set our nation up for the future, or keep us stranded in the past. Let’s hope it makes some smart choices.
The 2026 budget test: Will Australia break free from fossil fuels?
Anne Jellema is Executive Director of 350.org.
The war on Iran and Lebanon is a deeply unjust and devastating conflict, killing civilians at home, destroying lives, and at the same time sending shockwaves through the global economy. We, at 350.org, have calculated, drawing on price forecasts from the International Monetary Fund (IMF) and Goldman Sachs, just how much that volatility is costing us.
Even under the IMF’s baseline scenario – a de facto “best case” scenario with a near-term end to the war and related supply chain disruptions – oil and gas price spikes are projected to cost households and businesses globally more than $600 billion by the end of the year. Under the IMF’s “adverse scenario”, with prolonged conflict and sustained price pressures, we estimate those additional costs could exceed $1 trillion, even after accounting for reduced demand.
Which is why we urgently need a power shift. Governments are under growing pressure to respond to rising fuel and food costs and deepening energy poverty. And it’s becoming clearer to both voters and elected officials that fossil dependence is not only expensive and risky, but unnecessary.
People who can are voting with their wallets: sales of solar panels and electric vehicles are increasing sharply in many countries. But the working people who have nothing to spare, ironically, are the ones stuck with using oil and gas that is either exorbitantly expensive or simply impossible to get.
Drain on households and economies
In India, street food vendors can’t get cooking gas and in the Philippines, fishermen can’t afford to take their boats to sea. A quarter of British people say that rising energy tariffs will leave them completely unable to pay their bills. This is the moment for a global push to bring abundant and affordable clean energy to all.
In April, we released Out of Pocket, our new research report on how fossil fuels are draining households and economies. We were surprised by the scale of what we found. For decades, governments have reassured people that energy price spikes are unfortunate but unavoidable – the result of distant conflicts, market forces or geopolitical shocks beyond anyone’s control. But the numbers tell a different story.
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Santa Marta: Ministers grapple with practicalities of fossil fuel phase-out
Around 60 governments that want to make progress on transitioning away from coal, oil and gas are meeting in Colombia to work out how they can do it an equitable way -
Why the transition beyond fossil fuels depends on cities and collective action
Cities will help identify concrete pathways for an equitable shift to clean energy at the Santa Marta conference, with C40 members aiming to halve their fossil fuel use by 2030
What we are living through today is not an energy crisis. It is a fossil fuel crisis. In just the first 50 days of the Middle East conflict, soaring oil and gas prices have siphoned an estimated $158 billion–$166 billion from households and businesses worldwide. That is money extracted directly from people’s pockets and transferred, almost instantly, into fossil fuel company balance sheets. And this figure only captures the immediate impact of price spikes, not the permanent economic drain of fossil dependence. Fossil fuels don’t just cost us once, they cost us over and over again.
First, through our bills. Every time there is a war, an embargo or a supply disruption, fossil fuel prices surge. For ordinary people, this means higher costs for energy, transport and food. Many Global South countries have little or no fiscal space to buffer the shock; instead, workers and families pay the price.
Second, through our taxes. Governments around the world continue to pour vast sums of public money into fossil fuel subsidies. These are often justified as a way to protect the most vulnerable at the petrol pump or in their homes. But in reality, the benefits are overwhelmingly captured by wealthier households and corporations. The poorest 20% receive just a fraction of this support, while public finances are drained.
Third, through climate impacts. New research across more than 24,000 global locations gives a granular account of the true costs of extreme heat, sea level rise and falling agricultural yields. Using this data to update IMF modelling of the social cost of carbon, we found that fossil fuel impacts on health and livelihoods amount to over $9 trillion a year. This is the biggest subsidy of all, because these massive and mounting costs are not charged to Big Oil – they are paid for by governments and households, with the poorest shouldering the lion’s share.
Massive transfer of wealth to fossil fuel industry
Adding up direct subsidies, tax breaks and the unpaid bill for climate damages, the total transfer of wealth from the public to the fossil fuel industry amounts to $12 trillion even in a “normal” year without a global oil shock. That’s more than 50% higher than the IMF has previously estimated, and equivalent to a staggering $23 million a minute.
The fossil fuel industry has become extraordinarily adept at profiting from instability. When conflict drives up prices, companies do not lose, they gain. In the current crisis, oil producers and commodity traders are on track to secure tens of billions of dollars in additional windfall profits, even as households face rising bills and governments struggle to manage the fallout.
Fossil fuel crisis offers chance to speed up energy transition, ministers say
This growing disconnect is impossible to ignore. Investors are advised to buy into fossil fuel firms precisely because of their ability to generate profits in times of crisis. Meanwhile, ordinary people are told to tighten their belts.
In 2026, unlike during the oil shocks of the 1970s, clean energy is no longer a distant alternative. Now, even more than when gas prices spiked due to Russia’s invasion of Ukraine in 2022, renewables are often the cheapest option available. Solar and wind can be deployed quickly, at scale, and without the volatility that defines fossil fuel markets.
How to transition from dirty to clean energy
The solutions are clear. Governments must implement permanent windfall taxes on fossil fuel companies to ensure that extraordinary profits generated during crises are redirected to support households. These revenues can be used to reduce energy bills, invest in public services, and accelerate the rollout of clean energy.
Second, we must shift subsidies away from fossil fuels and towards renewable solutions, particularly those that can be deployed quickly and equitably, such as rooftop and community solar. This is not just about cutting emissions. It is about building a more stable, fair and resilient energy system.
Finally, we need binding plans to phase out fossil fuels altogether, replacing them with homegrown renewable energy that can shield economies from future shocks. Because what the current crisis has made clear is this: as long as we remain dependent on fossil fuels, we remain vulnerable – to conflict, to price volatility and to the escalating impacts of climate change.
The true price of fossil fuels is no longer hidden. It is visible in rising bills, strained public finances and communities pushed to the brink. And it is being paid, every day, by ordinary people around the world.
It’s time for the great power shift.
Full details on the methodology used for this report are available here.
The Great Power Shift is a new campaign by 350.org global campaign to pressure governments to bring down energy bills for good by ending fossil fuel dependence and investing in clean, affordable energy for all
The post What fossil fuels really cost us in a world at war appeared first on Climate Home News.
Computer models that use artificial intelligence (AI) cannot forecast record-breaking weather as well as traditional climate models, according to a new study.
It is well established that AI climate models have surpassed traditional, physics-based climate models for some aspects of weather forecasting.
However, new research published in Science Advances finds that AI models still “underperform” in forecasting record-breaking extreme weather events.
The authors tested how well both AI and traditional weather models could simulate thousands of record-breaking hot, cold and windy events that were recorded in 2018 and 2020.
They find that AI models underestimate both the frequency and intensity of record-breaking events.
A study author tells Carbon Brief that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
AI weather forecasts
Extreme weather events, such as floods, heatwaves and storms, drive hundreds of billions of dollars in damages every year through the destruction of cropland, impacts on infrastructure and the loss of human life.
Many governments have developed early warning systems to prepare the general public and mobilise disaster response teams for imminent extreme weather events. These systems have been shown to minimise damages and save lives.
For decades, scientists have used numerical weather prediction models to simulate the weather days, or weeks, in advance.
These models rely on a series of complex equations that reproduce processes in the atmosphere and ocean. The equations are rooted in fundamental laws of physics, based on decades of research by climate scientists. As a result, these models are referred to as “physics-based” models.
However, AI-based climate models are gaining popularity as an alternative for weather forecasting.
Instead of using physics, these models use a statistical approach. Scientists present AI models with a large batch of historical weather data, known as training data, which teaches the model to recognise patterns and make predictions.
To produce a new forecast, the AI model draws on this bank of knowledge and follows the patterns that it knows.
There are many advantages to AI weather forecasts. For example, they use less computing power than physics-based models, because they do not have to run thousands of mathematical equations.
Furthermore, many AI models have been found to perform better than traditional physics-based models at weather forecasts.
However, these models also have drawbacks.
Study author Prof Sebastian Engelke, a professor at the research institute for statistics and information science at the University of Geneva, tells Carbon Brief that AI models “depend strongly on the training data” and are “relatively constrained to the range of this dataset”.
In other words, AI models struggle to simulate brand new weather patterns, instead tending forecast events of a similar strength to those seen before. As a result, it is unclear whether AI models can simulate unprecedented, record-breaking extreme events that, by definition, have never been seen before.
Record-breaking extremes
Extreme weather events are becoming more intense and frequent as the climate warms. Record-shattering extremes – those that break existing records by large margins – are also becoming more regular.
For example, during a 2021 heatwave in north-western US and Canada, local temperature records were broken by up to 5C. According to one study, the heatwave would have been “impossible” without human-caused climate change.
The new study explores how accurately AI and physics-based models can forecast such record-breaking extremes.
First, the authors identified every heat, cold and wind event in 2018 and 2020 that broke a record previously set between 1979 and 2017. (They chose these years due to data availability.) The authors use ERA5 reanalysis data to identify these records.
This produced a large sample size of record-breaking events. For the year 2020, the authors identified around 160,000 heat, 33,000 cold and 53,000 wind records, spread across different seasons and world regions.
For their traditional, physics-based model, the authors selected the High RESolution forecast model from the Integrated Forecasting System of the European Centre for Medium-Range Weather Forecasts. This is “widely considered as the leading physics-based numerical weather prediction model”, according to the paper.
They also selected three “leading” AI weather models – the GraphCast model from Google Deepmind, Pangu-Weather developed by Huawei Cloud and the Fuxi model, developed by a team from Shanghai.
The authors then assessed how accurately each model could forecast the extremes observed in the year 2020.
Dr Zhongwei Zhang is the lead author on the study and a researcher at Karlsruhe Institute of Technology. He tells Carbon Brief that many AI weather forecast models were built for “general weather conditions”, as they use all historical weather data to train the models. Meanwhile, forecasting extremes is considered a “secondary task” by the models.
The authors explored a range of different “lead times” – in other words, how far into the future the model is forecasting. For example, a lead time of two days could mean the model uses the weather conditions at midnight on 1 January to simulate weather conditions at midnight on 3 January.
The plot below shows how accurately the models forecasted all extreme events (left) and heat extremes (right) under different lead times. This is measured using “root mean square error” – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy.
The chart on the left shows how two of the AI models (blue and green) performed better than the physics-based model (black) when forecasting all weather across the year 2020.
However, the chart on the right illustrates how the physics-based model (black) performed better than all three AI models (blue, red and green) when it came to forecasting heat extremes.
The authors note that the performance gap between AI and physics-based models is widest for lower lead times, indicating that AI models have greater difficulty making predictions in the near future.
They find similar results for cold and wind records.
In addition, the authors find that AI models generally “underpredict” temperature during heat records and “overpredict” during cold records.
The study finds that the larger the margin that the record is broken by, the less well the AI model predicts the intensity of the event.
‘Warning shot’
Study author Prof Erich Fischer is a climate scientist at ETH Zurich and a Carbon Brief contributing editor. He tells Carbon Brief that the result is “not unexpected”.
He adds that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
The analysis, he continues, is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
AI models are likely to continue to improve, but scientists should “not yet” fully replace traditional forecasting models with AI ones, according to Fischer.
He explains that accurate forecasts are “most needed” in the runup to potential record-breaking extremes, because they are the trigger for early warning systems that help minimise damages caused by extreme weather.
Leonardo Olivetti is a PhD student at Uppsala University, who has published work on AI weather forecasting and was not involved in the study.
He tells Carbon Brief that “many other studies” have identified issues with using AI models for “extremes”, but this paper is novel for its specific focus on extremes.
Olivetti notes that AI models are already used alongside physics-based models at “some of the major weather forecasting centres around the world”. However, the study results suggest “caution against relying too heavily on these [AI] models”, he says.
Prof Martin Schultz, a professor in computational earth system science at the University of Cologne who was not involved in the study, tells Carbon Brief that the results of the analysis are “very interesting, but not too surprising”.
He adds that the study “justifies the continued use of classical numerical weather models in operational forecasts, in spite of their tremendous computational costs”.
Advances in forecasting
The field of AI weather forecasting is evolving rapidly.
Olivetti notes that the three AI models tested in the study are an “older generation” of AI models. In the last two years, newer “probabilistic” forecast models have emerged that “claim to better capture extremes”, he explains.
The three AI models used in the analysis are “deterministic”, meaning that they only simulate one possible future outcome.
In contrast, study author Engelke tells Carbon Brief that probabilistic models “create several possible future states of the weather” and are therefore more likely to capture record-breaking extremes.
Engelke says it is “important” to evaluate the newer generation of models for their ability to forecast weather extremes.
He adds that this paper has set out a “protocol” for testing the ability of AI models to predict unprecedented extreme events, which he hopes other researchers will go on to use.
The study says that another “promising direction” for future research is to develop models that combine aspects of traditional, physics-based weather forecasts with AI models.
Engelke says this approach would be “best of both worlds”, as it would combine the ability of physics-based models to simulate record-breaking weather with the computational efficiency of AI models.
Dr Kyle Hilburn, a research scientist at Colorado State University, notes that the study does not address extreme rainfall, which he says “presents challenges for both modelling and observing”. This, he says, is an “important” area for future research.
The post Traditional models still ‘outperform AI’ for extreme weather forecasts appeared first on Carbon Brief.
Traditional models still ‘outperform AI’ for extreme weather forecasts
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