Connect with us

Published

on

At 12.33pm on Monday 28 April, most of Spain and Portugal were plunged into chaos by a blackout.

While the initial trigger remains uncertain, the nationwide blackouts took place after around 15 gigawatts (GW) of electricity generating capacity – equivalent to 60% of Spain’s power demand at the time – dropped off the system within the space of five seconds.

The blackouts left millions of people without power, with trains, traffic lights, ATMs, phone connections and internet access failing across the Iberian peninsula.

By Tuesday morning, almost all electricity supplies across Spain and Portugal had been restored, but questions about the root cause remained.

Many media outlets were quick to – despite very little available data or information – blame renewables, net-zero or the energy transition for the blackout, even if only by association, by highlighting the key role solar power plays in the region’s electricity mix.

Below, Carbon Brief examines what is known about the Spanish and Portuguese power cuts, the role of renewables and how the media has responded.

What happened and what was the impact?

The near-total power outage in the Iberian Peninsula on Monday affected millions of people.

Spain and Portugal experienced the most extensive blackouts, but Andorra also reported outages, as did the Basque region of France. According to Reuters, the blackout was the biggest in Europe’s history.

In a conference call with reporters, Spanish grid operator Red Eléctrica set out the order of events.

Shortly after 12.30pm, the grid suffered an “event” akin to loss of power generation, according to a summary of the call posted by Bloomberg’s energy and commodities columnist Javier Blas on LinkedIn. While the grid almost immediately self-stabilised and recovered, about 1.5 seconds later a second “event” hit, he wrote.

Around 3.5 seconds later, the interconnector between the Spanish region of Catalonia and south-west France was disconnected due to grid instability. Immediately after this, there was a “massive” loss of power on the system, Blas said.

This caused the power grid to “cascade down into collapse”, causing the “unexplained disappearance” of 60% of Spain’s generation, according to Politico.

It quoted Spanish prime minister Pedro Sánchez, who told a press conference late on Monday that the causes were not yet known:

“This has never happened before. And what caused it is something that the experts have not yet established – but they will.”

The figure below shows the sudden loss of 15GW of generating capacity from the Spanish grid at 12.33pm on Monday. In addition, a further 5GW disconnected from the Portuguese grid.

 Electricity generation capacity in Spain, megawatts (MW), from 27-29 April, showing the drop in generation.
Electricity generation capacity in Spain, megawatts (MW), from 27-29 April, showing the drop in generation. Credit: Red Eléctrica.

The Guardian noted in its coverage that “while the system weathered the first event, it could not cope with the second”.

A separate piece from the publication added that “barely a corner of the peninsula, which has a joint population of almost 60 million people, escaped the blackout”.

El País reported that “the power cut…paralysed the normal functioning of infrastructures, telecommunications, roads, train stations, airports, stores and buildings. Hospitals have not been impacted as they are using generators.”

According to Spanish newswire EFE, “hundreds of thousands of people flooded the streets, forced to walk long distances home due to paralysed metro and commuter train services, without mobile apps as telecommunications networks also faltered”.

It added that between 30,000 and 35,000 passengers had to be evacuated from stranded trains.

el_pais_madrid on X: Madrid recupera el servicio de Metro

The New York Times reported that Portuguese banks and schools closed, while ATMs stopped working across the country and Spain. People “crammed into stores to buy food and other essentials as clerks used pen and paper to record cash-only transactions”, it added.

Spain’s interior ministry declared a national emergency, according to Reuters, deploying 30,000 police to keep order.

Both Spain and Portugal convened emergency cabinet meetings, with Spain’s King Felipe VI chairing a national security council meeting on Tuesday to discuss an investigation into the power outage, Sky News reported.

By 10pm on Monday, 421 out of Spain’s 680 substations were back online, meaning that 43% of expected power demand was being met, reported the Guardian.

By Tuesday morning, more than 99% of the total electricity supply had been recovered, according to Politico, quoting Red Eléctrica.

In Portugal, power had been restored to every substation on the country’s grid by 11.30pm on Monday. In a statement released on Tuesday, Portuguese grid operator REN said the grid had been “fully stabilised”.

What caused the power cuts?

In the wake of the power cuts, politicians, industry professionals, media outlets, armchair experts and the wider public scrambled to make sense of what had just happened.

Spanish prime minister Sánchez said on the afternoon of the blackout that the government did not have “conclusive information” on its cause, adding that it “[did] not rule out any hypothesis”, Spanish newspaper Diario Sur reported.

Nevertheless, some early theories were quickly rejected by officials.

Red Eléctrica, “preliminarily ruled out that the blackout was due to a cyberattack, human error or a meteorological or atmospheric phenomenon”, El País reported the day after the event.

Politico noted that “people in the street in Spain and some local politicians” had speculated about a cyberattack.

However, it quoted Eduardo Prieto, Red Eléctrica’s head of system operation services, saying that while the conclusions were preliminary, the operator had “been able to conclude that there has not been any type of intrusion in the electrical network control systems that could have caused the incident”.

The Majorca Daily Bulletin reported that Spain’s High Court said it would open an investigation into whether the event was the result of a cyberattack.

Initial reporting by news agencies blamed the power cuts on a “rare atmospheric phenomenon”, citing the Portuguese grid operator REN, according to the Guardian. The newspaper added that REN later said this statement had been incorrectly attributed to it.

The phenomenon in question was described as an “induced atmospheric vibration”.

Prof Mehdi Seyedmahmoudian, an electrical engineer at Swinburne University of Technology in Australia, explained in the Conversation that this was “not a commonly used term”.

Nevertheless, he said the phenomenon being described was familiar, referring to “wavelike movements” in the atmosphere caused by sudden changes in temperature or pressure.

In general terms, Reuters explained that power cuts are often linked to extreme weather, but that the “weather at the time of Monday’s collapse was fair”. It added that faults at power stations, power distribution lines or substations can also trigger outages.

Another theory was that a divergence of electrical frequency from 50 cycles per second (Hz), the European standard, could have caused parts of the system to shut down in order to protect equipment, France 24 explained.

Some analysts noted that “oscillations” in grid frequency shortly before the events in Spain and Portugal could be related to the power cuts. Tobias Burke, policy manager at Energy UK, explained this theory in his Substack:

“The fact these frequency oscillations mirrored those in Latvia…at the other extreme of the Europe-spanning ENTSO-E network, might suggest complex inter-area oscillations across markets could be the culprit.”

This phenomenon can be seen in a chart shared by Prof Lion Hirth, an energy researcher at Hertie School, on LinkedIn.

Lion Hirth on LinkedIn: What caused the blackout in Spain and Portugal yesterday

With many details still unknown, much of the media speculation has focused on the role that renewable energy could have played in the blackouts. (See: Did renewable energy play a role in the cut?)

Many of the experts cited in the media emphasised the complexity of determining the cause of the outages. Eamonn Lannoye, managing director at the Electric Power Research Institute Europe, was quoted by the Associated Press stating:

“There’s a variety of things that usually happen at the same time and it’s very difficult for any event to say ‘this was the root cause’.”

Nevertheless, there are several efforts now underway to determine what the causes were.

Portugal’s prime minister, Luís Montenegro, announced on Tuesday that the government would set up an independent technical commission to investigate the blackouts, while stressing that the problem had originated in Spain, according to Euractiv.

Finally, EU energy commissioner Dan Jørgensen has indicated that the EU will open a “thorough investigation” into the reasons behind the power cuts, BBC News noted.

Dan Jørgensen on X: The energy situation in Spain and Portugal is back to normal

Did renewable energy play a role in the blackouts?

As commentators began to look into the cause of the blackout, many pointed to the high share of renewables in Spain’s electricity mix.

On 16 April, Spain’s grid had run entirely on renewable sources for a full day for the first time ever, with wind accounting for 46% of total output, solar 27%, hydroelectric 23% and solar thermal and others meeting the rest, according to PV Magazine.

Spain is targeting 81% renewable power by 2030 and 100% by 2050.

At the time of the blackout on Monday, solar accounted for 59% of the country’s electricity supplies, wind nearly 12%, nuclear 11% and gas around 5%, reported the Independent.

The initial “event” is thought to have originated in the south-western region of Extremadura, noted Politico, “which is home to the country’s most powerful nuclear power plant, some of its largest hydroelectric dams and numerous solar farms.”

On Tuesday, Red Eléctrica’s head of system operation services Eduardo Prieta said that it was “very possible that the affected generation [in the initial ‘events’] could be solar”.

This sparked further speculation about how grids that are highly reliant on variable renewables can be managed so as to ensure security of supply.

Political groups such as the far-right VOX – which has historically pushed back against climate action such as the expansion of renewables – also pointed to the blackout as evidence of “the importance of a balanced energy mix”.

However, others rejected this suggestion, with EU energy chief Dan Jørgensen telling Bloomberg that the blackout could not be pinned on a “specific source of energy”:

“As far as we know, there was nothing unusual about the sources of energy supplying electricity to the system yesterday. So the causes of the blackout cannot be reduced to a specific source of energy, for instance renewables.”

Others have sought to highlight that, while it was possible solar power was involved in the initial frequency event, this does not mean that it was ultimately the cause of the blackout.

Writing on LinkedIn, chief technology officer of Arenko, a renewable energy software company, Roger Hollies, noted:

“The initial trip may well have been a solar plant, but trips happen all the time across all asset types. Networks should be designed to withstand multiple loss of generators. 15GW is not one power station, this is the equivalent of 10 large gas or nuclear power stations or 75 solar parks.”

Others pointed to what they said was insufficient nuclear power on the grid – a notion that prime minister Sánchez rejected, according to El País.

Speaking on Tuesday, he said that those arguing the blackouts showed a need for more nuclear power were “either lying or showing ignorance”, according to the newspaper. It said he highlighted that nuclear plants were yet to fully recover from the event.

One key aspect of the transition away from electricity systems built around thermal power stations burning coal, gas or uranium is a loss of “inertia”, the Financial Times highlighted.

Thermal power plants generate electricity using large spinning turbines, which rotate at the same 50 cycles per second (Hz) speed as the electrical grid oscillates. The weight of these “large lump[s] of spinning metal” gives them “inertia”, which counteracts changes in frequency on the rest of the grid.

When faults cause a rise or fall in grid frequency, this inertia helps lower the rate of change of frequency, giving system operators more time to respond, noted Adam Bell, director of policy at Stonehaven, in a post on LinkedIn.

Solar does not include a spinning generator, and therefore, critics pointed to the lack of inertia on the grid due to the high levels of the technology as a cause of the blackout.

As Bell pointed out, this ignores the inertia provided by nuclear, hydro and solar thermal on the grid at the time of the blackout, alongside the Spanish grid operator having built “synchronous condensers” to help boost inertia and grid stability.

Bell added:

“A lack of inertia was therefore not the main driver for the blackout. Indeed, post the frequency event, no fossil generation remained online – but wind, solar and hydro did.”

While the ultimate cause of the blackouts remains to be seen, they have highlighted the need for an increased focus on grid stability, particularly as the economy is electrified.

A selection of comments from experts published in Review Energy emphasises the need for further resilience to be built into the grid as it transitions away from fossil fuels.

How has the media responded to the power cut?

As the crisis was still unfolding and its cause remained unknown, several climate-sceptic right-leaning UK publications clamoured to draw a link between the blackouts and the nations’ reliance on renewable energy.

It comes as right-leaning titles have stepped up their campaigning against climate policy over the past year.

George Mann on Bluesky: The Daily Telegraph: Net zero blamed for blackout chaos

On Tuesday, the Daily Telegraph carried a frontpage story headlined: “Net-zero blamed for blackout chaos.”

But the article contradicted its own headline by concluding: “What exactly happened remains unclear for now. And the real answer is likely to involve several factors, not just one.”

None of the experts quoted in the piece blamed “net-zero” for the incident.

The Daily Telegraph also carried an editorial seeking to argue renewable energy was the cause of the blackouts, which claimed that “over-reliance on renewables means a less resilient grid”.

The Daily Express had an editorial (not online) claiming that the blackout shows “relying on renewables is dim”.

Additionally, the Standard carried a comment by notorious climate-sceptic commentator Ross Clark breathlessly blaming the blackout on “unreliable” renewables, with a fear-monguering warning that the “same could happen in the UK”.

The Daily Mail published a comment by Rupert Darwall, a climate-sceptic author who is part of the CO2 Coalition – an organisation seeking to promote “the important contribution made by carbon dioxide to our lives” – which claimed that the blackout showed “energy security is being sacrificed at the altar of green dogma”.

Climate-sceptic libertarian publication Spiked had a piece by its deputy editor Fraser Myers titled: “Spain’s blackouts are a disaster made by net-zero.” The article claimed that “our elites’ embrace of green ideology has divorced them from reality”.

In Spanish media, Jordi Sevilla, the former president of Red Eléctrica, wrote in the financial publication Cinco Días that, while it is not known what caused the blackout, it is clear that the country’s grid “requires investments to adapt to the technical reality of the new generation mix”. He continued:

“In Spain, in the last decade, there has been a revolution in electricity generation to the point that renewable technologies ([solar] photovoltaic and wind, above all) now occupy the majority of the energy mix. This has had very positive impacts on CO2 emissions, lower electricity prices and increased national autonomy.

“But there is a technical problem: photovoltaic and wind power are not synchronous energies, whereas our transmission and distribution networks are designed to operate only with a minimum voltage in the energy they transport. Therefore, to operate with current technology, the electrical system must maintain synchronous backup power, which can be hydroelectric, gas or nuclear, to be used when photovoltaic and wind power are insufficient, either due to their intermittent nature (there may be no sun or wind) or due to the lack of synchronisation required by the generators to operate.”

For Bloomberg, opinion columnist Javier Blas said that “Spain’s blackout shouldn’t trigger a retreat from renewables”, but shows that “an upgraded grid is urgently needed for the energy transition”. He added:

“​​The world didn’t walk away from fossil-fuel and nuclear power stations because New York suffered a massive blackout in 1977. And it shouldn’t walk away from solar and wind because Spain and Portugal lost power for a few hours.

“But we should learn that grid design, policy and risk mapping aren’t yet up to the task of handling too much power from renewable sources.”

The post Q&A: What we do – and do not – know about the blackout in Spain and Portugal appeared first on Carbon Brief.

Q&A: What we do – and do not – know about the blackout in Spain and Portugal

Continue Reading

Climate Change

The 2026 budget test: Will Australia break free from fossil fuels?

Published

on

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

Action Calls for a Transition Away From Fossil Fuels in Vanuatu. © Greenpeace
The community in Mele, Vanuatu sent a positive message ahead of the First Conference on Transitioning Away from Fossil Fuels. © Greenpeace

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

Activists Disrupt Major Gas Conference in Sydney. © Greenpeace
Greenpeace Australia Pacific activists disrupted the Australian Domestic Gas Outlook conference in Sydney with the message ‘Gas execs profit, we pay the price’. © Greenpeace

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

Protest of Woodside and Drill Rig Valaris at Scarborough Gas Field in Western Australia. © Greenpeace / Jimmy Emms
Crew aboard Greenpeace Australia Pacific’s campaigning vessel the Oceania conducted a peaceful banner protest at the site of the Valaris DPS-1, the drill rig commissioned to build Woodside’s destructive Burrup Hub. © Greenpeace / Jimmy Emms

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

Rainforest in Tasmania. © Markus Mauthe / Greenpeace
Rainforest of north west Tasmania in the Takayna (Tarkine) region. © Markus Mauthe / Greenpeace

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?

Continue Reading

Climate Change

What fossil fuels really cost us in a world at war

Published

on

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. 

    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

    Logo of 350.org campaign on “The Great Power Shift”

    Logo of 350.org campaign on “The Great Power Shift”

    The post What fossil fuels really cost us in a world at war appeared first on Climate Home News.

    What fossil fuels really cost us in a world at war

    Continue Reading

    Climate Change

    Traditional models still ‘outperform AI’ for extreme weather forecasts

    Published

    on

    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.

    Accuracy of the AI models
    Accuracy of the AI models (blue, red and green) and the physics-based model (black) at forecasting all weather over 2020 (left) and heat extremes (right) over a range of lead times. This is measured using “root mean square error” (RMSE) – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy. Source: Zhang et al (2026).

    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

    Continue Reading

    Trending

    Copyright © 2022 BreakingClimateChange.com