India’s carbon dioxide (CO2) emissions from its power sector fell by 1% year-on-year in the first half of 2025 and by 0.2% over the past 12 months, only the second drop in almost half a century.
As a result, India’s CO2 emissions from fossil fuels and cement grew at their slowest rate in the first half of the year since 2001 – excluding Covid – according to new analysis for Carbon Brief.
The analysis is the first of a regular new series covering India’s CO2 emissions, based on monthly data for fuel use, industrial production and power output, compiled from numerous official sources.
(See the regular series on China’s CO2 emissions, which began in 2019.)
Other key findings on India for the first six months of 2025 include:
- The growth in clean-energy capacity reached a record 25.1 gigawatts (GW), up 69% year-on-year from what had, itself, been a record figure.
- This new clean-energy capacity is expected to generate nearly 50 terawatt hours (TWh) of electricity per year, nearly sufficient to meet the average increase in demand overall.
- Slower economic expansion meant there was zero growth in demand for oil products, a marked fall from annual rates of 6% in 2023 and 4% in 2024.
- Government infrastructure spending helped accelerate CO2 emissions growth from steel and cement production, by 7% and 10%, respectively.
The analysis also shows that emissions from India’s power sector could peak before 2030, if clean-energy capacity and electricity demand grow as expected.
The future of CO2 emissions in India is a key indicator for the world, with the country – the world’s most populous – having contributed nearly two-fifths of the rise in global energy-sector emissions growth since 2019.
India’s surging emissions slow down
In 2024, India was responsible for 8% of global energy-sector CO2 emissions, despite being home to 18% of the world’s population, as its per-capita output is far below the world average.
However, emissions have been growing rapidly, as shown in the figure below.
The country contributed 31% of global energy-sector emissions growth in the decade to 2024, rising to 37% in the past five years, due to a surge in the three-year period from 2021-23.
More than half of India’s CO2 output comes from coal used for electricity and heat generation, making this sector the most important by far for the country’s emissions.
The second-largest sector is fossil fuel use in industry, which accounts for another quarter of the total, while oil use for transport makes up a further eighth of India’s emissions.
India’s CO2 emissions from fossil fuels and cement grew by 8% per year from 2019 to 2023, quickly rebounding from a 7% drop in 2020 due to Covid.
Before the Covid pandemic, emissions growth had averaged 4% per year from 2010 to 2019, but emissions in 2023 and 2024 rose above the pre-pandemic trendline.
This was despite a slower average GDP growth rate from 2019 to 2024 than in the preceding decade, indicating that the economy became more energy- and carbon-intensive. (For example, growth in steel and cement outpaced the overall rate of economic growth.)
A turnaround came in the second half of 2024, when emissions only increased by 2% year-on-year, slowing down to 1% in the first half of 2025, as seen in the figure below.

The largest contributor to the slowdown was the power sector, which was responsible for 60% of the drop in emissions growth rates, when comparing the first half of 2025 with the years 2021-23.
Oil demand growth slowed sharply as well, contributing 20% of the slowdown. The only sectors to keep growing their emissions in the first half of 2025 were steel and cement production.
Another 20% of the slowdown was due to a reduction in coal and gas use outside the power, steel and cement sectors. This comprises construction, industries such as paper, fertilisers, chemicals, brick kilns and textiles, as well as residential and commercial cooking, heating and hot water.
This is all shown in the figure below, which compares year-on-year changes in emissions during the second half of 2024 and the first half of 2025, with the average for 2021-23.

Power sector emissions fell by 1% in the first half of 2025, after growing 10% per year during 2021-23 and adding more than 50m tonnes of CO2 (MtCO2) to India’s total every six months.
Oil product use saw zero growth in the first half of 2025, after rising 6% per year in 2021-23.
In contrast, emissions from coal burning for cement and steel production rose by 10% and 7%, respectively, while coal use outside of these sectors fell 2%.
Gas consumption fell 7% year-on-year, with reductions across the power and industrial sectors as well as other users. This was a sharp reversal of the 5% average annual growth in 2021-23.
Power-sector emissions pause
The most striking shift in India’s sectoral emissions trends has come in the power sector, where coal consumption and CO2 emissions fell 0.2% in the 12 months to June and 1% in the first half of 2025, marking just the second drop in half a century, as shown in the figure below.
The reduction in coal use comes after more than a decade of break-neck growth, starting in the early 2010s and only interrupted by Covid in 2020. It also comes even as the country plans large amounts of new coal-fired generating capacity.

In the first half of 2025, total power generation increased by 9 terawatt hours (TWh) year-on-year, but fossil power generation fell by 29TWh, as output from solar grew 17TWh, from wind 9TWh, from hydropower by 9TWh and from nuclear by 3TWh.
Analysis of government data shows that 65% of the fall in fossil-fuel generation can be attributed to lower electricity demand growth, 20% to faster growth in non-hydro clean power and the remaining 15% to higher output at existing hydropower plants.
Slower growth in electricity usage was largely due to relatively mild temperatures and high rainfall, in contrast to the heatwaves of 2024. A slowdown in industrial sectors in the second quarter of the year also contributed.
In addition, increased rainfall drove the jump in hydropower generation. India received 42% above-normal rainfall from March to May 2025. (In early 2024, India’s hydro output had fallen steeply as a result of “erratic rainfall”.)
Lower temperatures and this abundant rainfall reduced the need for air conditioning, which is responsible for around 10% of the country’s total power demand. In the same period in 2024, demand surged due to record heatwaves and higher temperatures across the country.
The growth in clean-power generation was buoyed by the addition of a record 25.1GW of non-fossil capacity in the first half of 2025. This was a 69% increase compared with the previous period in 2024, which had also set a record.
Solar continues to dominate new installations, with 14.3GW of capacity added in the first half of the year coming from large scale solar projects and 3.2GW from solar rooftops.
Solar is also adding the majority of new clean-power output. Taking into account the average capacity factor of each technology, solar power delivered 62% of the additional annual generation, hydropower 16%, wind 13% and nuclear power 8%.
The new clean-energy capacity added in the first half of 2025 will generate record amounts of clean power. As shown in the figure below, the 50TWh per year from this new clean capacity is approaching the average growth of total power generation.
(When clean-energy growth exceeds total demand growth, generation from fossil fuels declines.)

India is expected to add another 16-17GW of solar and wind in the second half of 2025. Beyond this year, strong continued clean-energy growth is expected, towards India’s target for 500GW of non-fossil fuel capacity by 2030 (see below).
Slowing oil demand growth
The first half of 2025 also saw a significant slowdown in India’s oil demand growth. After rising by 6% a year in the three years to 2023, it slowed to 4% in 2024 and zero in the first half of 2025.
The slowdown in oil consumption overall was predominantly due to slower growth in demand for diesel and “other oil products”, which includes bitumen.
In the first quarter of 2025, diesel demand actually fell, due to a decline in industrial activity, limited weather-related mobility and – reportedly – higher uptake of vehicles that run on compressed natural gas (CNG), as well as electricity (EVs).
Diesel demand growth increased in March to May, but again declined in June because of early and unusually severe monsoon rains in India, leading to a slowdown in industrial and mining activities, disrupted supply-chains and transport of raw material, goods and services.
The severe rains also slowed down road construction activity, which in turn curtailed demand for transportation, construction equipment and bitumen.
Weaker diesel demand growth in 2024 had reflected slower growth in economic activity, as growth rates in the industrial and agricultural sectors contracted compared to previous years.
Another important trend is that EVs are also cutting into diesel demand in the commercial vehicles segment, although this is not yet a significant factor in the overall picture.
EV adoption is particularly notable in major metropolitan cities and other rapidly emerging urban centres and in the logistics sector, where they are being preferred for short haul rides over diesel vans or light commercial vehicles.
EVs accounted for only 7.6% of total vehicle sales in the financial year 2024-25, up 22.5% year-on-year, but still far from the target of 30% by 2030.
However, any significant drop in diesel demand will be a function of adoption of EV for long-haul trucks, which account for 32% of the total CO2 emissions from the transport sector. Only 280 electric trucks were sold in 2024, reported NITI Aayog.
Trucks remain the largest diesel consumers. Moreover, truck sales grew 9.2% year-on-year in the second quarter of 2025, driven in part by India’s target of 75% farm mechanisation by 2047. This sales growth may outweigh the reduction in diesel demand due to EVs. Subsidies for electric tractors have seen some pilots, but demand is yet to take off.
Apart from diesel, petrol demand growth continued in the first half of 2025 at the same rate as in earlier years. Modest year-on-year growth of 1.3% in passenger vehicle sales could temper future increases in petrol demand, however. This is a sharp decline from 7.5% and 10% growth rates in sales in the same period in 2024 and 2023.
Furthermore, EVs are proving to be cheaper to run than petrol for two- and three-wheelers, which may reduce the sale of petrol vehicles in cities that show policy support for EV adoption.
Steel and cement emissions continue to grow
As already noted, steel and cement were the only major sectors of India’s economy to see an increase in emissions growth in the first half of 2025.
While they were only responsible for around 12% of India’s total CO2 emissions from fossil fuels and cement in 2024, they have been growing quickly, averaging 6% a year for the past five years.
The growth in emissions accelerated in the first half of 2025, as cement output rose 10% and steel output 7%, far in excess of the growth in economic output overall.
Steel and cement growth accelerated further in July. A key demand driver is government infrastructure spending, which tripled from 2019 to 2024.
In the second quarter of 2025, the government’s capital expenditure increased 52% year-on-year. albeit from a low base during last year’s elections. This signals strong growth in infrastructure.
The government is targeting domestic steel manufacturing capacity of 300m tonnes (Mt) per year by 2030, from 200Mt currently, under the National Steel Policy 2017, supported by financial incentives for firms that meet production targets for high quality steel.
The government also imposed tariffs on steel imports in April and stricter quality standards for imports in June, in order to boost domestic production.
Government policies such as Pradhan Mantri Awas Yojna – a “housing for all” initiative under which 30m houses are to be built by FY30 – is further expected to lift demand for steel and cement.
The automotive sector in India is expected to grow at a fast pace, with sales expected to reach 7.5m units for passenger vehicle and commercial vehicle segments from 5.1m units in 2023, in addition to rapid growth in electric vehicles. This can be expected to be another key driver for growth of the steel sector, as 900 kg of steel is used per vehicle.
Without stringent energy efficiency measures and the adoption of cleaner fuel, the expected growth in steel and cement production could drive significant emissions growth from the sector.
Power-sector emissions could peak before 2030
Looking beyond this year, the analysis shows that CO2 from India’s power sector could peak before 2030, having previously been the main driver of emissions growth.
To date, India’s clean-energy additions have been lagging behind the growth in total electricity demand, meaning fossil-fuel demand and emissions from the sector have continued to rise.
However, this dynamic looks likely to change. In 2021, India set a target of having 500GW of non-fossil power generation capacity in place by 2030. Progress was slow at first, so meeting the target implies a substantial acceleration in clean-energy additions.
The country has been laying the groundwork for such an acceleration.
There was 234GW of renewable capacity in the pipeline as of April 2025, according to the Ministry of New and Renewable Energy. This includes 169GW already awarded contracts, of which 145GW is under construction, and an additional 65GW put out to tender. There is also 5.2GW of new nuclear capacity under construction.
If all of this is commissioned by 2030, then total non-fossil capacity would increase to 482GW, from 243GW at the end of June 2025, leaving a gap of just 18GW to be filled with new projects.
When the non-fossil capacity target was set in 2021, CREA assessed that the target would suffice to peak demand for coal in power generation before 2030. This assessment remains valid and is reinforced by the latest Central Electricity Authority (CEA) projection for the country’s “optimal power mix” in 2030, shown in the figure below.

In the CEA’s projection, the share of non-fossil power generation rises to 44% in the 2029-30 fiscal year, up from 25% in 2024-25. From 2025 to 2030, power demand growth, averaging 6% per year, is entirely covered from clean sources.
To accomplish this, the growth in non-fossil power generation would need to accelerate over time, meaning that towards the end of the decade, the growth in clean power supply would clearly outstrip demand growth overall – and so power generation from fossil fuels would fall.
While coal-power generation is expected to flatline, large amounts of new coal-power capacity is still being planned, because of the expected growth in peak electricity demand.
The post-Covid increase in electricity demand has given rise to a wave of new coal power plant proposals. Recent plans from the government target an increase in coal-power capacity by another 80-100GW by 2030-32, with 35GW already under construction as of July 2025.
The rationale for this is the increase in peak electricity loads, associated in particular with worsening heatwaves and growing use of air conditioning. The increase might yet prove unneeded.
Analysis by CREA shows that solar and wind are making an increasing contribution to meeting peak loads. This contribution will increase with the roll-out of solar power with integrated battery storage, the cost of which fell by 50-60% from 2023 to 2025.
The latest auction held in India saw solar power with battery storage bidding at prices, per unit of electricity generation, that were lower than the cost of new coal power.
This creates the opportunity to accelerate the decarbonisation of India’s power sector, by reducing the need for thermal power capacity.
The clean-energy buildout has made it possible for India to peak its power-sector emissions within the next few years, if contracted projects are built, clean-energy growth is maintained or accelerated beyond 2030 and demand growth remains within the government’s projections.
This would be a major turning point, as the power sector has been responsible for half of India’s recent emissions growth. In order to peak its emissions overall, however, India would still need to take further action to address CO2 from industry and transport.
With the end-of-September 2025 deadline nearing, India has yet to publish its international climate pledge (nationally determined contribution, NDC) for 2035 under the Paris Agreement, meaning its future emissions path, in the decades up to its 2070 net-zero goal, remains particularly uncertain.
The country is expected to easily surpass the headline climate target from its previous NDC, of cutting the emissions intensity of its economy to 45% below 2005 levels by 2030. As such, this goal is “unlikely to drive real world emission reductions”, according to Climate Action Tracker.
In July of this year, it met a 2030 target for 50% of installed power generating capacity to be from non-fossil sources, five years early.
About the data
This analysis is based on official monthly data for fuel consumption, industrial production and power generation from different ministries and government institutes.
Coal consumption in thermal power plants is taken from the monthly reports downloaded from the National Power Portal of the Ministry of Power. The data is compiled for the period January 2019 until June 2025. Power generation and capacity by technology and fuel on a monthly basis are sourced from the NITI data portal.
Coal use at steel and cement plants, as well as process emissions from cement production, are estimated using production indices from the Index of Eight Core Industries released monthly by the Office of Economic Adviser, assuming that changes in emissions follow production volumes.
These production indices were used to scale coal use by the sectors in 2022. To form a basis for using the indices, monthly coal consumption data for 2022 was constructed for the sectors using the annual total coal consumption reported in IEA World Energy Balances and monthly production data in a paper by Robbie Andrew, on monthly CO2 emission accounting for India.
Annual cement process emissions up to 2024 were also taken from Robbie Andrew’s work and scaled using the production indices. This approach better approximated changes in energy use and emissions reported in the IEA World Energy Balances, than did the amounts of coal reported to have been dispatched to the sectors, showing that production volumes are the dominant driver of short-term changes in emissions.
For other sectors, including aluminium, auto, chemical and petrochemical, paper and plywood, pharmaceutical, graphite electrode, sugar, textile, mining, traders and others, coal consumption is estimated based on data on despatch of domestic and imported coal to end users from statistical reports and monthly reports by the Ministry of Coal, as consumption data is not available.
The difference between consumption and dispatch is stock changes, which are estimated by assuming that the changes in coal inventories at end user facilities mirror those at coal mines, with end user inventories excluding power, steel and cement assumed to be 70% of those at coal mines, based on comparisons between our data and the IEA World Energy Balances.
Stock changes at mines are estimated as the difference between production at and despatch from coal mines, as reported by the Ministry of Coal.
In the case of the second quarter of the year 2025, data on domestic coal has been taken from the monthly reports by the Ministry of Coal. The regular data releases on coal imports have not taken place for the second quarter of 2025, for unknown reasons, so data was taken from commercial data providers Coal Hub and mjunction services ltd.
Product-wise petroleum product consumption data, as well as gas use by sector, was downloaded from the Petroleum Planning and Analysis Cell of the Ministry of Petroleum & Natural Gas.
As the fuel dispatch and consumption data is reported as physical volumes, calorific values are taken from IEA’s World Energy Balance and CO2 emission factors from 2006 IPCC Guidelines for National Greenhouse Gas Inventories.
Calorific values are assigned separately to different fuel types, including domestic and imported coal, anthracite and coke, as well as petrol, diesel and several other oil products.
The post Analysis: India’s power-sector CO2 falls for only second time in half a century appeared first on Carbon Brief.
Analysis: India’s power-sector CO2 falls for only second time in half a century
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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