The Academy of Macroeconomic Research (AMR) is a research institution under the direct supervision of China’s National Development and Reform Commission (NDRC), the ministry in charge of economic development and planning.
As a “national high-end thinktank”, the AMR’s Energy Research Institute is a well-respected body conducting energy transition research and providing vital suggestions on the energy transition to Beijing.
At this year’s COP29 in Baku, it launched the executive summary of 2024 China Energy Transformation Outlook (CETO), a key report describing China’s pathways to net-zero.
The launch was attended by a number of high-level officials, including climate envoy Liu Zhenmin and the head of the International Energy Agency, Dr Fatih Birol.
Carbon Brief’s Wanyuan Song was granted a rare – and lengthy – joint interview with its director general, Prof Lyu Wenbin, and director, Prof Bai Quan, who is also the lead author of the report, to hear their views about China’s energy transition.
- On China’s commitment to climate action: “Climate change doesn’t just affect China, it affects every country in the world…Climate change is not fake. It is happening and we are all on the same boat.”
- On international collaboration: “The joint work [on energy transition pathways] was meant to allow for a deeper grasp of the problems, making the research findings more scientific and [suggestions] more reasonable.”
- On an early emissions peak: “[W]e would love to try our best…but we can’t rule out all possibilities to peak even earlier than planned.”
- On updates in this year’s outlook: [This year w]e have also placed more emphasis on international cooperation.”
- On the need for global cooperation: “To achieve the best scenario, China shouldn’t be the only country that puts efforts into energy transition.”
- On stimulus and carbon reduction: “China’s ‘two new’ (“两新”) policy – large-scale equipment renewals and trade-ins of consumer goods – is one of [the policies]. The first three aspects [of ‘two new’] directly promote carbon reduction.”
- On managing electricity grids and markets: “China has never faced this kind of challenge before. The demand for electricity is huge, and soaring.”
- On China’s coal use: “With renewable energy becoming more powerful and energy storage becoming cheaper and more flexible, coal plants can play the role of ‘firefighters’ in the system – used in an electricity crisis whenever it is needed.”
- On the role of “green hydrogen”: “[I]t is very expensive at the moment…Commercial and technology innovation are needed to reduce costs.”
- On calls for greater ambition from China: “It can’t be the case that developing countries need to cut more emissions than developed countries – that would break the UN’s principle of ‘common but differentiated responsibilities’.”
CB: Why is China so determined to achieve its energy transition and combat climate change?
Bai Quan: Climate change doesn’t just affect China, it affects every country in the world. No one is excluded from it. China is one of the victims of extreme weather. The horrifying typhoon in Shanghai in recent months has blown windows off of skyscrapers – Shanghai didn’t have that many typhoons in the past. Autumn in Qinghai province [in west China] used to be cool and dry, but now it has become rainy. The weather forecast [once] said there was light rain in Beijing, but the heavy rain in the neighbouring province Hebei drowned people. Summer is getting hotter and winter is getting colder – this is climate change, and no one can survive alone. If Shanghai was drowned, would London be spared, would New York be OK? Climate change is not fake. It is happening and we are all on the same boat.
Combating climate change is a must, it is one of our core needs, and the primary thing we need to do to secure life and production. Low-carbon issues have been part of China’s policy for a long time but it wasn’t as big of a focus until President Xi vouched for climate action with the “dual-carbon” goal. The [“dual-carbon” goal] promise to the world is serious and, after President Xi announced it in 2020, it has become a hot topic [in media and among ordinary people]. The energy transition, as a sustainable solution, helps the “dual-carbon” goal to be realised.
CB: Your institute is working with national and international partners to produce an annual “China energy transformation outlook”. Can you tell me how that collaboration came about and what the aims of the project are?
Lyu Wenbin: The Chinese government has proposed the “dual-carbon” goal, and the energy transition is an important part of this process. Now that a goal has been clearly set, what we should do to deliver it is to choose the best pathway. Our research was conducted along with the Danish Energy Agency and Columbia University. The joint work was meant to allow for a deeper grasp of the problems, making the research findings more scientific and [suggestions] more reasonable.
CB: We covered your CETO 2023 report, in which you listed three stages of transformation. The first of these phases is the peaking phase, which lasts until 2030. With China rapidly expanding renewable energy this year and hitting its wind and solar capacity targets six years early, do you think China could peak even earlier than planned – “before 2030”?
BQ: There are many uncertainties and changes in the world economy, geopolitics and even military actions at the moment. Uncertainty also exists in climate change. China’s electricity consumption grew faster than expected and we would love to try our best to overcome all the difficulties to meet China’s carbon peaking goal before 2030, but we can’t rule out all possibilities to peak even earlier than planned.
CB: What differences are there in your outlook for China’s energy transition this year, compared to 2023?
BQ: The scenarios are different, although they are basically aligned. We have also placed more emphasis on international cooperation. The report itself has absorbed experiences from different places, such as Denmark’s experience in heating, for modelling, pathway design and other suggestions in the report. We would be very interested in discussing more new ideas and sharing our experience with everyone else.
CB: What would be needed for China to realise the most ambitious energy transition scenario featured in your report?
BQ: To achieve the best scenario, China shouldn’t be the only country that puts efforts into energy transition. China, as a developing country, at the government level and at the individual level, has already done a lot. The energy transition needs global cooperation. More people will realise the urgent need to combat climate change if we all join hands together. Solving some problems, such as commercialising hydrogen, also needs more joint research.
CB: You have previously said China’s energy transition relies on comprehensive policy support for green industry, “effective” investment in the green and low-carbon sector as well as promoting green consumption. Do you see signs of this in government plans for economic stimulus?
BQ: Yes, many! China’s “two new” (“两新”) policy – large-scale equipment renewals and trade-ins of consumer goods – is one of them. In the document issued by the State Council [China’s central government], there are four aspects: “implementing equipment updates, trade-in of consumer goods, recycling, and improving standards”.
The first three aspects directly promote carbon reduction. The first one is to service industrial sectors, the second one is to serve the general public, and the third one is for China’s “circular economy”. The last aspect indirectly serves energy saving and carbon reduction goals, by setting standards [for energy usage, emissions and recycling] to prevent people from re-purchasing outdated equipment with low energy efficiency.
In the past, it was difficult to recycle old production equipment, such as large motors. One obstacle is the challenge of acquiring a “first receipt” to be eligible for tax deductions. [Scrapped product sellers often cannot provide the purchase receipt – the “first receipt” – to the resource recycling companies for value-added tax deductions.] The new policy allows an ordinary invoice to be used for pre-tax deduction, solving the problem. This is a very important incentive to meet the 2027 goals [of the “two new” policy].
For the ordinary people, the “two new” policy also benefits their daily life. For example, they can receive subsidies for about 10-20% of a new purchase, with up to 2,000 yuan ($276) to trade-in a new fridge. [Trade-in subsidies for home appliances cover fridges, washing machines, televisions, air conditioners and computers.] They can get new energy saving electronics appliances at a very low price.
The “two new” policy documents clearly state the delineation of responsibilities of both the central and local governments, including funding they should provide. [The central government accounts for about 90% of funding and has issued a 300bn yuan ($41bn) bond to support this effort.] China holds regular press conferences stating progress on the “two new” policy, including on the renewal of outdated solar and wind equipment.
Another vital policy is the “guidelines to ramp up green transition of economic, social development” issued by the Central Committee of the Communist Party of China and the State Council. [See Carbon Brief’s China Briefing for more.] That is to say, it’s not just the [state-affiliated] State Council that promotes the “green transformation”, the Central Committee [the leading body of the Communist party] also really values it. There was a green transition policy before, but this new policy is a top-level design of “full green transition” [across every aspect of society]. It is a blueprint of China’s transition in industry, building [construction], transportation, energy and many other areas. Together with the “two new”, which is an implementation document for this top-level design, we now have both a direction and a manual for the energy transition.
CB: China is attempting to upgrade its electricity grids and markets to manage the variability of wind and solar power. What are the biggest challenges it faces in this area?
BQ: China has never faced this kind of challenge before. The demand for electricity is huge, and soaring. Reforms in the electricity pricing system and grid management are underway, and so are many other reforms. These reforms need to be economical, fair and feasible. Reforms, in general, have less impact on the rich than the poor. In the end, we can’t just ignore energy safety and cut electricity supply, nor ignore the poor being unable to afford it. This is a big challenge for the government to achieve in such a short time, especially if we are to peak carbon before 2030. Current price reform, in terms of whole reform effort, is happening very quickly, with the medium-to-long term contract reforms, as well as the spot market and the ancillary market reforms. However, it is a complicated matter, with each province facing different situations. Industrial usage and civilian usage are also different – we need to protect ordinary people’s needs.
CB: There has been significant international criticism of China’s decision to use coal-fired power plants as “flexibility providers” in its energy transition. Will coal continue to be necessary for China’s energy mix as it approaches carbon neutrality in 2060 and beyond, and how effective are China’s current efforts to develop low-carbon coal-fired power?
BQ: China’s principle is “construction new before destruct old” (先立后破), which is also translated as “build before breaking”. [See Carbon Brief’s articles from 2021 and 2022 for background.] The challenge China faces is different [from other countries], our electricity consumption is growing too fast. Energy security for us is most important, and cutting coal out completely does not match the basic principle of energy supply. What we can do is to increase the share of green electricity when improving the overall quantity and quality of electricity supply. Power grids also need to improve capacity for electricity generated from renewable sources, to counter their variable nature. Energy storage is an ideal solution for us, but it is too expensive at the moment.
The only pragmatic solution at the moment is asking coal plants to “tiao feng” (调峰, part-load operation, which means run below full-capacity). The old design of a coal-fired power plant was to operate for 5,500 hours annually, but they are at about 4,000 hours now. With renewable energy becoming more powerful and energy storage becoming cheaper and more flexible, coal plants can play the role of “firefighters” in the system – used in an electricity crisis whenever it is needed.
Overall, electricity is the core of future development. Reforms in electricity generation, power grids, electricity usage and electricity demand are all needed. Developing countries in particular face harder challenges. It is not only China – Vietnam and India also are exploring solutions to their power problems. Therefore, we emphasise global cooperation, which is vital for finding a solution for us all.
CB: Will “green hydrogen” play a significant role in China’s future energy mix and, if so, when do you think it will be deployed at scale?
BQ: Yes. Green hydrogen is a great alternative for fossil fuels in the chemical industry and the transportation sector. We were excited about it when it was first discovered, but it is very expensive at the moment. To deploy green hydrogen, commercial and technology innovation are needed, to reduce costs.
China’s carbon pricing has not reached the chemical industry yet, but it might change with changes in the market. The commercialisation of hydrogen is very important, a hydrogen fuel-cell vehicle needs to be affordable. We face the same problem that the EU faces and we would love to learn from them.
CB: Recent research has suggested that China should reduce emissions to at least 30% below 2023 levels by 2035, to align with the Paris Agreement goal of limiting warming to 1.5C. Some Chinese scientists have called this 30% figure “too ambitious”. Do you think a 30% reduction would be achievable?
BQ: I haven’t read the paper so can’t comment on it. I am not sure if there are suggestions for other countries in this research paper. [International expectations for China’s climate goals] need to be fair for China, as a developing country. [They] need to consider the shared responsibilities of the developed countries, including the US and EU. It can’t be the case that developing countries need to cut more emissions than developed countries – that would break the UN’s principle of “common but differentiated responsibilities”. China has not yet reached carbon peak, it still has some ways to go.
The post The Carbon Brief Interview: Prof Lyu Wenbin and Prof Bai Quan appeared first on Carbon Brief.
The Carbon Brief Interview: Prof Lyu Wenbin and Prof Bai Quan
Climate Change
The 2026 budget test: Will Australia break free from fossil fuels?
In 2026, the dangers of fossil fuel dependence have been laid bare like never before. The illegal invasion of Iran has brought pain and destruction to millions across the Middle East and triggered a global energy crisis impacting us all. Communities in the Pacific have been hit especially hard by rising fuel prices, and Australians have seen their cost-of-living woes deepen.
Such moments of crisis and upheaval can lead to positive transformation. But only when leaders act with courage and foresight.
There is no clearer statement of a government’s plans and priorities for the nation than its budget — how it plans to raise money, and what services, communities, and industries it will invest in.
As we count down the days to the 2026-27 Federal Budget, will the Albanese Government deliver a budget for our times? One that starts breaking the shackles of fossil fuels, accelerates the shift to clean energy, protects nature, and sees us work together with other countries towards a safer future for all? Or one that doubles down on coal and gas, locks in more climate chaos, and keeps us beholden to the whims of tyrants and billionaires.
Here’s what we think the moment demands, and what we’ll be looking out for when Treasurer Jim Chalmers steps up to the dispatch box on 12 May.
1. Stop fuelling the fire
2. Make big polluters pay
3. Support everyone to be part of the solution
4. Build the industries of the future
5. Build community resilience
6. Be a better neighbour
7. Protect nature
1. Stop fuelling the fire

In mid-April, Pacific governments and civil society met to redouble their efforts towards a Fossil Fuel Free Pacific. Moving beyond coal, oil and gas is fundamental to limiting warming to 1.5°C — a survival line for vulnerable communities and ecosystems. And as our Head of Pacific, Shiva Gounden, explained, it is “also a path of liberation that frees us from expensive, extractive and polluting fossil fuel imports and uplifts our communities”.
Pacific countries are at the forefront of growing global momentum towards a just transition away from fossil fuels, and it is way past time for Australia to get with the program. It is no longer a question of whether fossil fuel extraction will end, but whether that end will be appropriately managed and see communities supported through the transition, or whether it will be chaotic and disruptive.
So will this budget support the transition away from fossil fuels, or will it continue to prop up coal and gas?
When it comes to sensible moves the government can make right now, one stands out as a genuine low hanging fruit. Mining companies get a full rebate of the excise (or tax) that the rest of us pay on diesel fuel. This lowers their operating costs and acts as a large, ongoing subsidy on fossil fuel production — to the tune of $11 billion a year!
Greenpeace has long called for coal and gas companies to be removed from this outdated scheme, and for the billions in savings to be used to support the clean energy transition and to assist communities with adapting to the impacts of climate change. Will we see the government finally make this long overdue change, or will it once again cave to the fossil fuel lobby?
2. Make big polluters pay

While our communities continue to suffer the escalating costs of climate-fuelled disasters, our Government continues to support a massive expansion of Australia’s export gas industry. Gas is a dangerous fossil fuel, with every tonne of Australian gas adding to the global heating that endangers us all.
Moreover, companies like Santos and Woodside pay very little tax for the privilege of digging up and selling Australians’ natural endowment of fossil gas. Remarkably, the Government currently raises more tax from beer than from the Petroleum Resource Rent Tax (PRRT) — the main tax on gas profits.
Momentum has been building to replace or supplement the PRRT with a 25% tax on gas exports. This could raise up to $17 billion a year — funds that, like savings from removing the diesel tax rebate for coal and gas companies, could be spent on supporting the clean energy transition and assisting communities with adapting to worsening fires, floods, heatwaves and other impacts of climate change.
As politicians arrive in Canberra for budget week, they will be confronted by billboards calling for a fair tax on gas exports. The push now has the support of dozens of organisations and a growing number of politicians. Let’s hope the Treasurer seizes this rare window for reform.
3. Support everyone to be part of the solution
As the price of petrol and diesel rises, electric vehicles (EVs) are helping people cut fuel use and save money. However, while EV sales have jumped since the invasion of Iran sent fuel prices rising, they still only make up a fraction of total new car sales. This budget should help more Australians switch to electric vehicles and, even more importantly, enable more Australians to get around by bike, on foot, and on public transport. This means maintaining the EV discount, investing in public and active transport, and removing tax breaks for fuel-hungry utes and vans.
Millions of Australians already enjoy the cost-saving benefits of rooftop solar, batteries, and getting off gas. This budget should enable more households, and in particular those on lower incomes, to access these benefits. This means maintaining the Cheaper Home Batteries Program, and building on the Household Energy Upgrades Fund.
4. Build the industries of the future

If we’re to transition away from fossil fuels, we need to be building the clean industries of the future.
No state is more pivotal to Australia’s energy and industrial transformation than Western Australia. The state has unrivaled potential for renewable energy development and for replacing fossil fuel exports with clean exports like green iron. Such industries offer Western Australia the promise of a vibrant economic future, and for Australia to play an outsized positive role in the world’s efforts to reduce emissions.
However, realising this potential will require focussed support from the Federal Government. Among other measures, Greenpeace has recommended establishing the Australasian Green Iron Corporation as a joint venture between the Australian and Western Australian governments, a key trading partner, a major iron ore miner and steel makers. This would unite these central players around the complex task of building a large-scale green iron industry, and unleash Western Australia’s potential as a green industrial powerhouse.
5. Build community resilience
Believe it or not, our Government continues to spend far more on subsidising fossil fuel production — and on clearing up after climate-fuelled disasters — than it does on helping communities and industries reduce disaster costs through practical, proven methods for building their resilience.
Last year, the Government estimated that the cost of recovery from disasters like the devastating 2022 east coast floods on 2019-20 fires will rise to $13.5 billion. For contrast, the Government’s Disaster Ready Fund – the main national source of funding for disaster resilience – invests just $200 million a year in grants to support disaster preparedness and resilience building. This is despite the Government’s own National Emergency Management Agency (NEMA) estimating that for every dollar spent on disaster risk reduction, there is a $9.60 return on investment.
By redirecting funds currently spent on subsidising fossil fuel production, the Government can both stop incentivising climate destruction in the first place, and ensure that Australian communities and industries are better protected from worsening climate extremes.
No communities have more to lose from climate damage, or carry more knowledge of practical solutions, than Aboriginal and Torres Strait Islander peoples. The budget should include a dedicated First Nations climate adaptation fund, ensuring First Nations communities can develop solutions on their own terms, and access the support they need with adapting to extreme heat, coastal erosion and other escalating challenges.
6. Be a better neighbour
The global response to climate change depends on the adequate flow of support from developed economies like Australia to lower income nations with shifting to clean energy, adapting to the impacts of climate change, and addressing loss and damage.
Such support is vital to building trust and cooperation, reducing global emissions, and supporting regional and global security by enabling countries to transition away from fossil fuels and build greater resilience.
Despite its central leadership role in this year’s global climate negotiations, our Government is yet to announce its contribution to international climate finance for 2025-2030. Greenpeace recommends a commitment of $11 billion for this five year period, which is aligned with the global goal under the Paris Agreement to triple international climate finance from current levels.
This new commitment should include additional funding to address loss and damage from climate change and a substantial contribution to the Pacific Resilience Facility, ensuring support is accessible to countries and communities that need it most. It should also see Australia get firmly behind the vision of a Fossil Fuel Free Pacific.
7. Protect nature

There is no safe planet without protection of the ecosystems and biodiversity that sustain us and regulate our climate.
Last year the Parliament passed important and long overdue reforms to our national environment laws to ensure better protection for our forests and other critical ecosystems. However, the Government will need to provide sufficient funding to ensure the effective implementation of these reforms.
Greenpeace has recommended $500 million over four years to establish the National Environment Agency — the body responsible for enforcing and monitoring the new laws — and a further $50 million to Environment Information Australia for providing critical information and tools.
Further resourcing will also be required to fulfil the crucial goal of fully protecting 30% of Australian land and seas by 2030. This should include $1 billion towards ending deforestation by enabling farmers and loggers to retool away from destructive practices, $2 billion a year for restoring degraded lands, $5 billion for purchasing and creating new protected areas, and $200 million for expanding domestic and international marine protected areas.
Conclusion
This is not the first time that conflict overseas has triggered an energy crisis, or that a budget has been preceded by a summer of extreme weather disasters, highlighting the urgent need to phase out fossil fuels. What’s different in 2026 is the availability of solutions. Renewable energy is now cheaper and more accessible than ever before. Global momentum is firmly behind the transition away from fossil fuels. The Albanese Government, with its overwhelming majority, has the chance to set our nation up for the future, or keep us stranded in the past. Let’s hope it makes some smart choices.
The 2026 budget test: Will Australia break free from fossil fuels?
Climate Change
What fossil fuels really cost us in a world at war
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


The post What fossil fuels really cost us in a world at war appeared first on Climate Home News.
Climate Change
Traditional models still ‘outperform AI’ for extreme weather forecasts
Computer models that use artificial intelligence (AI) cannot forecast record-breaking weather as well as traditional climate models, according to a new study.
It is well established that AI climate models have surpassed traditional, physics-based climate models for some aspects of weather forecasting.
However, new research published in Science Advances finds that AI models still “underperform” in forecasting record-breaking extreme weather events.
The authors tested how well both AI and traditional weather models could simulate thousands of record-breaking hot, cold and windy events that were recorded in 2018 and 2020.
They find that AI models underestimate both the frequency and intensity of record-breaking events.
A study author tells Carbon Brief that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
AI weather forecasts
Extreme weather events, such as floods, heatwaves and storms, drive hundreds of billions of dollars in damages every year through the destruction of cropland, impacts on infrastructure and the loss of human life.
Many governments have developed early warning systems to prepare the general public and mobilise disaster response teams for imminent extreme weather events. These systems have been shown to minimise damages and save lives.
For decades, scientists have used numerical weather prediction models to simulate the weather days, or weeks, in advance.
These models rely on a series of complex equations that reproduce processes in the atmosphere and ocean. The equations are rooted in fundamental laws of physics, based on decades of research by climate scientists. As a result, these models are referred to as “physics-based” models.
However, AI-based climate models are gaining popularity as an alternative for weather forecasting.
Instead of using physics, these models use a statistical approach. Scientists present AI models with a large batch of historical weather data, known as training data, which teaches the model to recognise patterns and make predictions.
To produce a new forecast, the AI model draws on this bank of knowledge and follows the patterns that it knows.
There are many advantages to AI weather forecasts. For example, they use less computing power than physics-based models, because they do not have to run thousands of mathematical equations.
Furthermore, many AI models have been found to perform better than traditional physics-based models at weather forecasts.
However, these models also have drawbacks.
Study author Prof Sebastian Engelke, a professor at the research institute for statistics and information science at the University of Geneva, tells Carbon Brief that AI models “depend strongly on the training data” and are “relatively constrained to the range of this dataset”.
In other words, AI models struggle to simulate brand new weather patterns, instead tending forecast events of a similar strength to those seen before. As a result, it is unclear whether AI models can simulate unprecedented, record-breaking extreme events that, by definition, have never been seen before.
Record-breaking extremes
Extreme weather events are becoming more intense and frequent as the climate warms. Record-shattering extremes – those that break existing records by large margins – are also becoming more regular.
For example, during a 2021 heatwave in north-western US and Canada, local temperature records were broken by up to 5C. According to one study, the heatwave would have been “impossible” without human-caused climate change.
The new study explores how accurately AI and physics-based models can forecast such record-breaking extremes.
First, the authors identified every heat, cold and wind event in 2018 and 2020 that broke a record previously set between 1979 and 2017. (They chose these years due to data availability.) The authors use ERA5 reanalysis data to identify these records.
This produced a large sample size of record-breaking events. For the year 2020, the authors identified around 160,000 heat, 33,000 cold and 53,000 wind records, spread across different seasons and world regions.
For their traditional, physics-based model, the authors selected the High RESolution forecast model from the Integrated Forecasting System of the European Centre for Medium-Range Weather Forecasts. This is “widely considered as the leading physics-based numerical weather prediction model”, according to the paper.
They also selected three “leading” AI weather models – the GraphCast model from Google Deepmind, Pangu-Weather developed by Huawei Cloud and the Fuxi model, developed by a team from Shanghai.
The authors then assessed how accurately each model could forecast the extremes observed in the year 2020.
Dr Zhongwei Zhang is the lead author on the study and a researcher at Karlsruhe Institute of Technology. He tells Carbon Brief that many AI weather forecast models were built for “general weather conditions”, as they use all historical weather data to train the models. Meanwhile, forecasting extremes is considered a “secondary task” by the models.
The authors explored a range of different “lead times” – in other words, how far into the future the model is forecasting. For example, a lead time of two days could mean the model uses the weather conditions at midnight on 1 January to simulate weather conditions at midnight on 3 January.
The plot below shows how accurately the models forecasted all extreme events (left) and heat extremes (right) under different lead times. This is measured using “root mean square error” – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy.
The chart on the left shows how two of the AI models (blue and green) performed better than the physics-based model (black) when forecasting all weather across the year 2020.
However, the chart on the right illustrates how the physics-based model (black) performed better than all three AI models (blue, red and green) when it came to forecasting heat extremes.

The authors note that the performance gap between AI and physics-based models is widest for lower lead times, indicating that AI models have greater difficulty making predictions in the near future.
They find similar results for cold and wind records.
In addition, the authors find that AI models generally “underpredict” temperature during heat records and “overpredict” during cold records.
The study finds that the larger the margin that the record is broken by, the less well the AI model predicts the intensity of the event.
‘Warning shot’
Study author Prof Erich Fischer is a climate scientist at ETH Zurich and a Carbon Brief contributing editor. He tells Carbon Brief that the result is “not unexpected”.
He adds that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
The analysis, he continues, is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.
AI models are likely to continue to improve, but scientists should “not yet” fully replace traditional forecasting models with AI ones, according to Fischer.
He explains that accurate forecasts are “most needed” in the runup to potential record-breaking extremes, because they are the trigger for early warning systems that help minimise damages caused by extreme weather.
Leonardo Olivetti is a PhD student at Uppsala University, who has published work on AI weather forecasting and was not involved in the study.
He tells Carbon Brief that “many other studies” have identified issues with using AI models for “extremes”, but this paper is novel for its specific focus on extremes.
Olivetti notes that AI models are already used alongside physics-based models at “some of the major weather forecasting centres around the world”. However, the study results suggest “caution against relying too heavily on these [AI] models”, he says.
Prof Martin Schultz, a professor in computational earth system science at the University of Cologne who was not involved in the study, tells Carbon Brief that the results of the analysis are “very interesting, but not too surprising”.
He adds that the study “justifies the continued use of classical numerical weather models in operational forecasts, in spite of their tremendous computational costs”.
Advances in forecasting
The field of AI weather forecasting is evolving rapidly.
Olivetti notes that the three AI models tested in the study are an “older generation” of AI models. In the last two years, newer “probabilistic” forecast models have emerged that “claim to better capture extremes”, he explains.
The three AI models used in the analysis are “deterministic”, meaning that they only simulate one possible future outcome.
In contrast, study author Engelke tells Carbon Brief that probabilistic models “create several possible future states of the weather” and are therefore more likely to capture record-breaking extremes.
Engelke says it is “important” to evaluate the newer generation of models for their ability to forecast weather extremes.
He adds that this paper has set out a “protocol” for testing the ability of AI models to predict unprecedented extreme events, which he hopes other researchers will go on to use.
The study says that another “promising direction” for future research is to develop models that combine aspects of traditional, physics-based weather forecasts with AI models.
Engelke says this approach would be “best of both worlds”, as it would combine the ability of physics-based models to simulate record-breaking weather with the computational efficiency of AI models.
Dr Kyle Hilburn, a research scientist at Colorado State University, notes that the study does not address extreme rainfall, which he says “presents challenges for both modelling and observing”. This, he says, is an “important” area for future research.
The post Traditional models still ‘outperform AI’ for extreme weather forecasts appeared first on Carbon Brief.
Traditional models still ‘outperform AI’ for extreme weather forecasts
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