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Welcome to Carbon Brief’s China Briefing.

China Briefing handpicks and explains the most important climate and energy stories from China over the past fortnight. Subscribe for free here.

Key developments

China confirms climate commitment

XI’S NOT FOR TURNING: Chinese president Xi Jinping confirmed that the country’s 2035 “nationally determined contribution” (NDC) will cover the “entire scope of the economy, including all greenhouse gases” and be published before COP30, Bloomberg reported. It added that these comments, made at a virtual meeting of global leaders, signaled that “China won’t back off from its ambitions” on climate change, despite economic and geopolitical challenges. Reuters noted that Xi also flagged that “China’s actions to address climate change will not slow down”. As “Xi’s first international appearance on climate change since 2021”, the speech “sends a clear signal of China’s support for multilateralism”, Li Shuo, director of the China Climate Hub at the Asia Society Policy Institute, told Bloomberg. Nevertheless, campaign group Greenpeace East Asia global policy advisor Yao Zhe “cautioned against” interpreting it as meaning that an ambitious climate pledge is “guaranteed”, Climate Home News said, adding that it “remains an open question, especially given the ongoing tariff war with the US”.

BRAZIL’S INFLUENCE: The meeting was part of a broader campaign by COP30 host Brazil to persuade China, the EU and other powers “to commit to cutting greenhouse gas emissions enough to keep global warming well below 2C”, Reuters reported. Shortly before the meeting, Huang Runqiu, head of China’s Ministry of Ecology and Environment, reaffirmed China’s commitment to tackle climate change at a meeting with COP30 president André Corrêa do Lago in Beijing, according to China Environment News. Corrêa do Lago later told journalists he believes China is developing a “very ambitious” climate pledge, Bloomberg said.

GREEN BRICS: At a meeting in Rio de Janeiro, the foreign ministers of BRICS member states “reinforce[d the] group’s commitment to climate action”, according to a press statement published on the bloc’s website. Meanwhile, Xi visited the headquarters of the New Development Bank, a multilateral development bank established by BRICS, where he called on the bank to “implement more…green finance projects, so as to help developing countries…accelerate their green and low-carbon transformation”, the state-run newspaper China Daily reported. A China Daily editorial noted: “The BRICS countries are working together to help…developing countries finance the fight against climate change”. However, Reuters covered new research finding that Chinese companies are still building 7.7GW of new coal capacity overseas, mostly in BRICS member Indonesia, counter to China’s 2021 pledge to “stop financing coal projects overseas”.

Solar and wind outweigh fossil fuels

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RENEWABLES REIGN: China’s combined wind and solar capacity has exceeded that of thermal sources (火电, which mainly refers to coal and gas) for the first time in history, industry news outlet BJX News reported, with 74 gigawatts (GW) of wind and solar installations in the first quarter of 2025 bringing total capacity up to 1,482GW. This compares to 1,451GW of thermal power, the outlet added. Finance outlet Caixin noted that wind and solar capacity had already topped coal power (煤电) capacity in July last year. In a press conference, a National Energy Administration (NEA) official indicated that solar and wind capacity additions will continue to surpass thermal additions in the long-term, according to BJX News. Writing on Bluesky, Lauri Myllyvirta, lead analyst at the Centre for Research on Energy and Clean Air (CREA), wrote that the high number of new solar and wind additions showed a “huge rush to install capacity” before subsidies are cut off in July under the forthcoming market-based renewables pricing policy.

NEW NUCLEAR: Meanwhile, China has approved the construction of 10 new nuclear reactors, Shanghai-based news outlet Jiemian said. The units will have a combined capacity of at least 12GW, according to Carbon Brief calculations, bringing China’s total nuclear capacity to 113GW once built, according to state broadcaster CCTV. The country has also formalised a ban on new “captive” coal-fired power plants in an updated list of business areas in which companies in China are not allowed to operate for 2025, BJX News reported.

MARKET REFORM: A new notice on regional spot markets for electricity was issued, BJX News said, mandating several provinces to begin either “official operations” or trial operations, with the goal of spot markets covering the whole nation by the end of 2025. China enacted “basic rules” for ancillary services markets for the power grid, finance news outlet East Money said, which includes defining the scope for grid-regulating services, operating practices and cost mechanisms for the sector. An analysis in China Electric Power News noted that the issuance of these rules marks the establishment of trading rules for the “three major trading types” – medium- and long-term markets, spot markets and ancillary services – in an “important step” for power market reform.

INDUSTRY AND TRANSPORT: China has called for electrification to account for 10% of the transport sector’s total “end-use energy consumption” by 2027 and for battery electric vehicles (EVs) to make up the majority of new car sales by 2035, East Money reported. Separately, China has issued its first “green hydrogen certificate”, which was awarded to a “solar + grid power” hydrogen project, the Substack China Hydrogen Bulletin reported.

Tariffs, export controls and executive orders

THOUSAND-PERCENT TARIFFS: The US has “announced plans to impose tariffs” ranging from 41-3,521% on solar panels imported from south-east Asian countries, many of which are manufactured by Chinese companies in the region, BBC News reported. Chinese companies are likely to embrace relocating to countries other than the US, the New York Times said, as the “profit margins on solar exports to the US are high enough that relocation will be worth it, even with continuing tariff uncertainty”.

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MINERAL FLOWS: China’s exports of critical metals to the US have “plung[ed]” in recent weeks, with “shipments of several critical items halting entirely in March”, the Hong Kong-based South China Morning Post reported. The shortage of minerals, which are “vital for EVs, wind turbines” and other clean-energy technologies, the Financial Times reported, could “cause shutdowns in automotive production…if Beijing fully chokes off exports”. Meanwhile, China has criticised a new US executive order “aimed at stepping up deep-sea mining” to increase access to key minerals, saying the move “violates international law”, according to BBC News.

Spotlight 

China issues new ‘action plan’ to control HFC emissions

China issued a new “action plan” in April to control hydrofluorocarbons (HFCs), potent greenhouse gases (GHGs) that could significantly increase short-term climate warming.

In this issue, Carbon Brief assesses its potential impact on China’s GHG emissions.

Short-term pollutant

HFCs are man-made GHGs that can be several thousand times stronger at absorbing heat than carbon dioxide (CO2). One type, HFC-23, is 10,000 times more powerful than CO2.

They are used in a number of appliances, particularly as coolants for fridges and air conditioning.

Efforts to phase them out are governed by the 2016 Kigali Amendment to the Montreal Protocol on ozone-depleting substances, which China ratified in 2021.

China is the world’s largest producer and consumer of HFCs, accounting for more than 70% of global production and 50% of consumption. It also produces and consumes the majority of the appliances that use them.

Its HFC emissions stood at 273m tonnes of CO2 equivalent (MtCO2e) in 2020, according to the government’s recently-submitted GHG inventory. This is equivalent to more than 2% of China’s CO2 emissions that year, which totalled 11bn tonnes.

Despite HFCs’ relatively low share in overall GHG emissions, their absorption strength necessitates their inclusion in climate strategies, says Sun Xiaopu, senior China counsel at the thinktank Institute For Governance and Sustainable Development (IGSD).

She told Carbon Brief that mitigating HFCs will help avoid “short-term global warming” and climate tipping points.

Action plan for 2030

The government’s plan sets targets and timelines for “gradually reducing” production and consumption of appliances using HFCs by 2030, as well as reducing or banning consumption of ozone-depleting substances (ODSs).

These include lowering HFC production by 2029 by 10% from a 2024 baseline of 2bn tonnes of CO2 equivalent (GtCO2e). Consumption would also be reduced 10% from a baseline of 900MtCO2e in this timeframe. This aligns with China’s obligations under the Kigali Amendment.

From 2026, China will “prohibit” the production of fridges and freezers using HFC refrigerants.

From 2029, it will ban the use of HFCs in most cooling systems, including air conditioners and other refrigeration equipment – prioritising the automotive, home appliance and industrial cooling sectors.

To enforce this, China will take measures such as requiring licences for manufacturing and consumption of controlled HFCs, improving monitoring of the production of HFC-23, as well as encouraging recycling of HFC refrigerants, and imposing import and export quotas for HFC refrigerants (although not the appliances that use them).

The plan will also introduce “stricter legal liabilities and higher financial penalties” to deter non-compliance, said Zheng Tan, programme officer of the industry programme at the climate nonprofit Energy Foundation.

He told Carbon Brief this is a “crucial step” in strengthening China’s existing HFC policy framework.

Tightening controls

Although China has controlled HFCs for some time, efforts accelerated after 2021, Hu Jianxin, a professor at Peking University’s College of Environmental Science and Engineering and Kigali Amendment negotiator, told Environment China.

China has shown willingness to act ambitiously on HFCs before. It issued a notice to freeze domestic production capacity for five widely-used HFCs in 2021, two years earlier than its international obligations required.

The government reported, prior to the action plan, that its HFC controls saw production quotas in 2024 fall by 404MtCO2e and consumption quotas fall by 262MtCO2e year-on-year.

There is scope for ambitious HFC action to continue, Sun told Carbon Brief.

Non-government bodies could use “vertical” communication channels, such as panels of technological, economic and scientific experts, to feed governments information, she added, helping them understand the feasibility of higher targets, “leapfrog obsolete technologies” or address roadblocks to adopting alternative solutions.

Hu noted that industry representatives have been consulted on HFC controls, which could encourage greater compliance – in contrast to reports of companies previously flouting ODS production controls.

Nevertheless, he told Environment China industry could “always do more”, adding that, while some sectors could stop using HFCs immediately, others may need decades – although he did not clarify which sectors, or why.

Sun speculates that this may be because the patents for these alternatives are held by non-Chinese companies, creating barriers for Chinese companies to discover new solutions.

The climate thinktank Institute for Global Decarbonisation Progress found that Chinese companies hold only 14% of patents for one such group of compounds, hydrofluoroolefins.

Beyond patents, it added, alternatives “often encounter challenges related to safety, cost or energy efficiency”.

According to Zheng, developing “effective monitoring, reporting and verification tools and capacity-building measures”, policy support to increase demand for less damaging alternatives and developing science-based standards will be important for enhancing compliance.

Furthermore, China’s action plan only applies to appliances using HFC refrigerants within China, Sun said. Companies making such appliances for export are not subject to its controls.

A report co-authored by IGSD and the appliance-focused nonprofit Collaborative Labeling and Appliance Standards Program found that Chinese companies, among others, are “dumping” inefficient air-conditioning units that use HFC refrigerants in south-east Asia.

Halting this trade, the report said, could “result in a reduction of over 1GtCO2e over 25 years”.

Watch, read, listen

CHINA 101: The US-China Economic and Security Review Commission held a congressional hearing on China’s energy landscape and its geopolitical implications, featuring a number of experts on China’s energy and climate developments.

GREEN FINANCE: The East Asia Forum published an article by Christoph Nedopil Wang, director of the Griffith Asia Institute, on how China can cooperate with other Asian countries to “set a global example for green economic growth”.

COOPERATION AND COMPETITION: The European Guanxi podcast explored how EU-China climate cooperation could navigate tensions around carbon taxes and EV pricing.

EMPTY BARRELS: A new report by the Oxford Institute for Energy Studies outlined three potential scenarios for how China’s rising EV adoption will affect oil demand, finding it could fall by 600,000 barrels per day by 2030.


70%

The reduction in rainfall in the southern province of Guizhou since November last year, compared to average levels in previous years, as it battles a “lingering drought that has severely affected rural communities”, the state-run newspaper China Daily reported. Temperatures in April averaged 12.7C, marking the “second-highest national average temperature recorded” for the month since 1961, according to the state-supporting news outlet Global Times.


New science 

Construction and analysis of China’s carbon emission model based on machine learning

Scientific Reports

A new study used machine learning to calculate a possible carbon emissions trajectory for China through to 2030. It mapped China’s carbon emissions to nine explanatory variables, including the “proportion of coal in total energy consumption and urbanisation rate”. As a result, the model estimates that China’s carbon emissions will “level off from 2022 to 2028 and peak in 2028”, with annual emissions in 2030 “expected to be about 9.72bn tonnes”.

Changes in the annual cycle of surface air temperature over China in the 21st century simulated by CMIP6 models

Scientific Reports

New research examined the predictions of CMIP6 models for annual cycles of surface air temperature over China, “one of the most profound manifestations of global warming”. The study examined historical and future monthly temperatures under three different shared socioeconomic pathways. The study found that, under the model, the “amplitude” – or spread between the highest and lowest temperatures in a given year – would be narrower in future, although it noted that the patterns of likely temperature changes differ regionally, and particularly between northern and southern China.

China Briefing is compiled by Wanyuan Song and Anika Patel. It is edited by Wanyuan Song and Dr Simon Evans. Please send tips and feedback to china@carbonbrief.org 

The post China Briefing 1 May 2025: Xi steadfast on climate; Solar and wind surpassed thermal power; Controlling short-term GHGs appeared first on Carbon Brief.

China Briefing 1 May 2025: Xi steadfast on climate; Solar and wind surpassed thermal power; Controlling short-term GHGs

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

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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?

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What fossil fuels really cost us in a world at war

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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

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    Traditional models still ‘outperform AI’ for extreme weather forecasts

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    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.

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