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At COP29 in Baku, developed-country parties such as the EU, the US and Japan agreed to help raise “at least” $300bn a year by 2035 for climate action in developing countries.

The goal was welcomed by global-north leaders and presented as a “tripling” of the previous target for international climate finance.

Yet it faced a strong backlash from many developing countries, with some branding it a “joke” and “betrayal”.

Closer analysis of the goal and climate-finance data helps to explain this response.

Analysts have shown that the target is achievable with virtually “no additional budgetary effort” from developed countries, beyond already-committed increases.

A combination of pre-existing national pledges and multilateral development bank (MDB) plans will bring climate finance up to around $200bn a year by the end of this decade.

Counting money already being distributed by emerging economies such as China – as “encouraged” under the new goal – could bring the total to $265bn by 2030. This could mean the target is well on its way to being met by that date, with minimal extra effort.

Moreover, as activists and academics have noted, the $300bn target does not account for inflation. When this is factored in, its “real” value could shrink by around a quarter.

The new target has emerged against a backdrop of financial strain and political uncertainty in developed countries.

At the same time, developing countries have stressed that they need climate finance to reach the “trillions of dollars” needed to cut emissions and protect themselves from climate change.

This article looks at three ways in which the $300bn goal could be met with little extra financial effort by developed countries – and provide fewer benefits for developing countries than the figure suggests.

  1. Much of the goal will be met with ‘no additional effort’
  2. Developing-country contributions could cover part of the goal
  3. Inflation wipes out much of the increase in climate finance

1. Much of the goal will be met with ‘no additional effort’

The $300bn climate-finance target agreed at COP29 in Baku will be met with finance from a “wide variety of sources”, largely coming from developed countries.

This part of the “new collective quantified goal” (NCQG) for climate finance is likely to be made up of public finance provided directly by governments, as well as money from MDBs, specialised climate funds and private finance “mobilised” by public investments.

article-9-paris-agreement_ragout
Source: UNFCCC.

The wording of the $300bn goal frames it as an extension of the $100bn target. This was the amount that developed countries agreed in 2009 to raise for developing countries annually by 2020 – a goal that was extended through to 2025 by the Paris Agreement.

Beyond the central goal of $300bn, the NCQG also includes a much broader “aspirational” target of $1.3tn a year in climate finance by 2035.

However, this is harder to assess, as the text of the deal is vague about who will be responsible for raising the funds, which could include various sources that are beyond the jurisdiction of the UN climate process.

climate_finance_ragout
Source: UNFCCC.

Developed countries and MDBs had already committed to raising their climate-finance contributions before a deal was struck at COP29, as noted in a joint analysis by the Natural Resources Defense Council (NRDC), ODI, Germanwatch and ECCO.

The collective impact of these pre-existing commitments can be seen below, with climate finance from developed countries set to increase from $115.9bn in 2022 – the most recent year for which data is available – to $197bn in 2030. This can be seen in the chart below, which does not account for inflation. (See: Inflation wipes out much of the increase in climate finance.)

Estimated climate finance in 2030, based on funds that have already been pledged, and target set at COP29 for 2035 (red).
Estimated climate finance in 2030, based on funds that have already been pledged, and target set at COP29 for 2035 (red). Dark blue bars show historical climate finance recorded by the Organisation for Economic Co-operation and Development (OECD), 2013-2022 (grey). The light blue bars indicate an estimated trajectory to reach the 2030 and 2035 levels. These figures do not account for inflation. Source: OECD, NRDC, NCQG text.

The expected increase between 2022 and 2030 comes from a few different sources.

The analysts calculated that climate finance distributed “bilaterally” – as grants or loans via overseas aid and other public funding – was already expected to increase $6.6bn annually by 2025, based on existing pledges, bringing the total to $50bn. (The chart above assumes that bilateral finance remains at this level up to 2030.)

They also estimated that existing pledges and reforms at specialised climate funds, such as the Green Climate Fund and Climate Investment Funds, would add another $1.3bn per year by 2030. This would bring their contribution to $5bn.

The biggest increase that was already locked in before the COP29 deal was a pledge by MDBs – which provide 40% of existing climate finance – to increase their contributions further.

A joint statement by the World Bank, the Asian Development Bank and others in the first week of COP29 committed to raising $120bn of climate finance per year by 2030 for low- and middle-income countries. Of this, $84bn can be attributed to developed countries, based on their shareholdings in these banks.

On top of this, the climate-finance analysts estimated that $58bn of private finance would be mobilised by these bilateral and multilateral contributions in 2030 – up from $21.9bn in 2022.

The chart below shows the estimated breakdown, by source, of climate finance in 2030, compared to 2022.

Historical climate finance in 2022 and estimated climate finance in 2020, by source.
Historical climate finance in 2022 and estimated climate finance in 2020, by source. Source: OECD, NRDC, NCQG text.

These expected increases over the course of this decade mean that with “no additional efforts”, beyond what had already been agreed prior to COP29, developed countries would have been on a trajectory to reach around $200bn per year by 2030, and $250bn per year by 2035. (The latter was the first numerical target proposed by developed countries at COP29, which was, ultimately, negotiated upwards to $300bn on the final day.)

NRDC climate-finance expert Joe Thwaites, one of the researchers who undertook the Natural Resources Defense Council’s (NDRC) analysis, tells Carbon Brief that bilateral funding directly from governments is the “big constraint” in climate finance. COP29 came just after the re-election in the US of climate-sceptic Donald Trump and many European countries have cut their aid budgets. Thwaites says:

“The MDBs are growing and doing all kinds of reforms and getting bigger and better, but the bilaterals are what are politically very stuck.”

Moreover, the COP29 climate-finance deal contains no pledge by developed countries to provide a set amount of public, bilateral finance, despite strong pressure from developing countries to include such a goal.

Following COP29, Thwaites released updated modelling to calculate different ways of reaching the $300bn target. He wrote:

“What is clear is that $300bn by 2035 is eminently achievable, with little to no additional budgetary effort required from developed countries, let alone other contributors, to meet the goal.”

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2. Developing-country contributions could cover part of the goal

Unlike the earlier $100bn target, contributions from developing countries could count towards the new climate finance goal.

Only developed countries are obliged to provide climate finance to developing countries under the Paris Agreement. But the NCQG outcome says that developing countries can “voluntarily” declare any climate-related funds they contribute, if they choose to do so.

voluntary-contributions_ragout
Source: UNFCCC.

This allowed negotiators at COP29 to skirt the controversial issue of formally expanding the list of official donors that are required to help with financial aid.

Developed countries had previously been pushing to enlist relatively wealthy developing nations, such as China and the Gulf states, to share the financial burden.

Several countries described since the early 1990s as “developing” under the UN’s climate convention are known to already make large, climate-related financial contributions to other developing countries. Examples include China’s Belt and Road initiative supporting clean-energy expansion and South Korea’s contributions to the GCF.

In fact, at COP29 China announced for the first time that it had “provided and mobilised” more than $24.5bn for climate projects in developing countries since 2017 – confirming that its contributions are comparable with those of many developed countries.

This roughly aligns with calculations by research groups that have placed China’s annual climate finance at around $4bn a year.

Both developed and developing countries pay money into MDBs. As well as “encouraging” developing countries to voluntarily contribute directly to climate finance, the NCQG outcome also specifies that these countries could start counting the share of climate-related money paid out of MDBs that can be traced back to their inputs.

multilateral-development-banks_ragout
Source: UNFCCC.

Roughly, 30% of the banks’ “outflows” can be attributed to developing countries in this way.

Counting the developing-country share of the projected increase in climate finance from MDBs by 2030 would add an extra $36bn to the global total, plus an extra $20bn of private finance mobilised by the funds.

It is not possible to say for sure how much climate finance new contributors such as China will choose to officially declare.

However, the chart below shows an estimate based on an “illustrative scenario”, by NRDC and others, of bilateral finance and multilateral climate funds, combined with expected MDB outflows and the associated private finance that this would mobilise. This could bring total annual climate finance up to $265bn by 2030.

Voluntary_contributions_from_developing_countries..
Potential voluntary contributions of climate finance by developing countries, including bilateral finance, contributions to multilateral funds, outflows from MDBs allocated to developing countries and private finance mobilised by developing country contributions to MDBs (lighter red), on top of estimated climate finance from developed countries in 2030 (red). The second red bar indicates the NCQG climate-finance target agreed for 2035 at COP29. The light blue bars indicate an estimated trajectory to reach the 2030 and 2035 levels. These figures do not account for inflation. Source: OECD, NRDC, NCQG text.

Some observers at COP29 said they hoped that officially counting developing-country contributions towards UN “climate finance” targets would enable parties, such as the EU, to set more ambitious goals.

However, Michai Robertson, lead finance negotiator for the Alliance of Small Island States (AOSIS), dismissed this as an “accounting trick”, because these funds are already being provided.

Li Shuo, head of the China climate hub at the Asia Society Policy Institute (ASPI), tells Carbon Brief that the NCQG outcome could bring more attention to China’s climate-related aid and lead to “stronger and better climate support from Beijing”. However, he notes that this is in the context of a low-ambition global target that is a “far cry” from what is needed:

“I take this as a classic example of geopolitical competition weakening environmental ambition, namely, the geopolitical desire of including China as a donor without corresponding desire of developed countries to contribute more limited the overall scale of climate finance.”

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3. Inflation wipes out much of the increase in climate finance

One issue that has surfaced in the wake of COP29 is the impact of inflation. Campaigners have noted that the failure to factor this into the 2035 climate-finance target means that, by the time it is met, the true value of the money pledged will be far lower than it is today.

In an article highlighting this issue, the Guardian reported that the $300bn goal was, therefore, “not the tripling of pledges that has been claimed”.

Researchers had flagged this before COP29, pointing out that the previous $100bn annually by 2020goal, which was first set in 2009, had also not accounted for inflation.

They noted that merely correcting the $100bn for inflation would bring it to between $139bn and around $150bn a year. (Such calculations depend on the rate of inflation applied to the starting figure, as well as the base year for the calculation.)

Civil-society groups at COP29, such as Power Shift Africa, estimated that the impact of inflation would cut the “real” value of the $300bn to $175bn in today’s money by 2035. This is based on an annual inflation rate of 5%.

In its analysis, the Guardian opted for an inflation rate of 2.4% – based on the average rate in the US over the past 15 years. This is taken to reflect the conditions for governments contributing climate finance and the currency much of it would be provided in.

The figure below shows the impact of an inflation rate of 3%. This is based on input from economists and analysis by the Center for Global Development (CGD), which, in turn, is based on the World Bank’s global GDP deflator.

If inflation over the next decade follows this trend, the $300bn pledged in 2024 would only be worth $217bn in today’s money in 2035 – a 28% reduction in value.

In order to offer climate finance with a real value of $300bn in 2035, countries would have needed to set a goal for that year of around $415bn.

Increase in climate finance between 2022 and 2035 under the NCQG commitment in nominal terms
Increase in climate finance between 2022 and 2035 under the NCQG commitment in nominal terms (red line), and based on the “real” value of the $300bn climate-finance pledge in 2024 value terms (blue dotted line). Source: Carbon Brief calculation based on a 3% inflation rate, as used by CGD.

(The figures in the chart above cannot be directly compared with the existing pledges made by governments and MDBs, as those too would need to be adjusted for inflation.)

CGD modelling suggests that if developed countries’ climate-finance contributions simply increase in line with expected inflation and gross national income (GNI) growth, they would reach $220bn by 2035.

The CGD analysts write in a blog post that “by the time the new goal is met, beneficiary countries will find that the purchasing power of these resources has eroded significantly”.

Independent experts, as well as climate-vulnerable countries themselves, emphasised both before and during COP29 that more than $1tn dollars will be needed each year to help developing countries deal with climate change. Many developing nations said that around $600bn of this should come directly from developed countries’ public coffers.

With such a relatively small amount of finance pledged for the NCQG, some developing countries have already indicated that they may scale back their future climate ambitions.

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

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In 2026, the dangers of fossil fuel dependence have been laid bare like never before. The illegal invasion of Iran has brought pain and destruction to millions across the Middle East and triggered a global energy crisis impacting us all. Communities in the Pacific have been hit especially hard by rising fuel prices, and Australians have seen their cost-of-living woes deepen.

Such moments of crisis and upheaval can lead to positive transformation. But only when leaders act with courage and foresight.

There is no clearer statement of a government’s plans and priorities for the nation than its budget — how it plans to raise money, and what services, communities, and industries it will invest in.

As we count down the days to the 2026-27 Federal Budget, will the Albanese Government deliver a budget for our times? One that starts breaking the shackles of fossil fuels, accelerates the shift to clean energy, protects nature, and sees us work together with other countries towards a safer future for all? Or one that doubles down on coal and gas, locks in more climate chaos, and keeps us beholden to the whims of tyrants and billionaires.

Here’s what we think the moment demands, and what we’ll be looking out for when Treasurer Jim Chalmers steps up to the dispatch box on 12 May.

1. Stop fuelling the fire
2. Make big polluters pay
3. Support everyone to be part of the solution
4. Build the industries of the future
5. Build community resilience
6. Be a better neighbour
7. Protect nature

1. Stop fuelling the fire

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

In mid-April, Pacific governments and civil society met to redouble their efforts towards a Fossil Fuel Free Pacific. Moving beyond coal, oil and gas is fundamental to limiting warming to 1.5°C — a survival line for vulnerable communities and ecosystems. And as our Head of Pacific, Shiva Gounden, explained, it is “also a path of liberation that frees us from expensive, extractive and polluting fossil fuel imports and uplifts our communities”.

Pacific countries are at the forefront of growing global momentum towards a just transition away from fossil fuels, and it is way past time for Australia to get with the program. It is no longer a question of whether fossil fuel extraction will end, but whether that end will be appropriately managed and see communities supported through the transition, or whether it will be chaotic and disruptive.

So will this budget support the transition away from fossil fuels, or will it continue to prop up coal and gas?

When it comes to sensible moves the government can make right now, one stands out as a genuine low hanging fruit. Mining companies get a full rebate of the excise (or tax) that the rest of us pay on diesel fuel. This lowers their operating costs and acts as a large, ongoing subsidy on fossil fuel production — to the tune of $11 billion a year!

Greenpeace has long called for coal and gas companies to be removed from this outdated scheme, and for the billions in savings to be used to support the clean energy transition and to assist communities with adapting to the impacts of climate change. Will we see the government finally make this long overdue change, or will it once again cave to the fossil fuel lobby?

2. Make big polluters pay

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

While our communities continue to suffer the escalating costs of climate-fuelled disasters, our Government continues to support a massive expansion of Australia’s export gas industry. Gas is a dangerous fossil fuel, with every tonne of Australian gas adding to the global heating that endangers us all.

Moreover, companies like Santos and Woodside pay very little tax for the privilege of digging up and selling Australians’ natural endowment of fossil gas. Remarkably, the Government currently raises more tax from beer than from the Petroleum Resource Rent Tax (PRRT) — the main tax on gas profits.

Momentum has been building to replace or supplement the PRRT with a 25% tax on gas exports. This could raise up to $17 billion a year — funds that, like savings from removing the diesel tax rebate for coal and gas companies, could be spent on supporting the clean energy transition and assisting communities with adapting to worsening fires, floods, heatwaves and other impacts of climate change.

As politicians arrive in Canberra for budget week, they will be confronted by billboards calling for a fair tax on gas exports. The push now has the support of dozens of organisations and a growing number of politicians. Let’s hope the Treasurer seizes this rare window for reform.

3. Support everyone to be part of the solution

As the price of petrol and diesel rises, electric vehicles (EVs) are helping people cut fuel use and save money. However, while EV sales have jumped since the invasion of Iran sent fuel prices rising, they still only make up a fraction of total new car sales. This budget should help more Australians switch to electric vehicles and, even more importantly, enable more Australians to get around by bike, on foot, and on public transport. This means maintaining the EV discount, investing in public and active transport, and removing tax breaks for fuel-hungry utes and vans.

Millions of Australians already enjoy the cost-saving benefits of rooftop solar, batteries, and getting off gas. This budget should enable more households, and in particular those on lower incomes, to access these benefits. This means maintaining the Cheaper Home Batteries Program, and building on the Household Energy Upgrades Fund.

4. Build the industries of the future

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

If we’re to transition away from fossil fuels, we need to be building the clean industries of the future.

No state is more pivotal to Australia’s energy and industrial transformation than Western Australia. The state has unrivaled potential for renewable energy development and for replacing fossil fuel exports with clean exports like green iron. Such industries offer Western Australia the promise of a vibrant economic future, and for Australia to play an outsized positive role in the world’s efforts to reduce emissions.

However, realising this potential will require focussed support from the Federal Government. Among other measures, Greenpeace has recommended establishing the Australasian Green Iron Corporation as a joint venture between the Australian and Western Australian governments, a key trading partner, a major iron ore miner and steel makers. This would unite these central players around the complex task of building a large-scale green iron industry, and unleash Western Australia’s potential as a green industrial powerhouse.

5. Build community resilience

Believe it or not, our Government continues to spend far more on subsidising fossil fuel production — and on clearing up after climate-fuelled disasters — than it does on helping communities and industries reduce disaster costs through practical, proven methods for building their resilience.

Last year, the Government estimated that the cost of recovery from disasters like the devastating 2022 east coast floods on 2019-20 fires will rise to $13.5 billion. For contrast, the Government’s Disaster Ready Fund – the main national source of funding for disaster resilience – invests just $200 million a year in grants to support disaster preparedness and resilience building. This is despite the Government’s own National Emergency Management Agency (NEMA) estimating that for every dollar spent on disaster risk reduction, there is a $9.60 return on investment.

By redirecting funds currently spent on subsidising fossil fuel production, the Government can both stop incentivising climate destruction in the first place, and ensure that Australian communities and industries are better protected from worsening climate extremes.

No communities have more to lose from climate damage, or carry more knowledge of practical solutions, than Aboriginal and Torres Strait Islander peoples. The budget should include a dedicated First Nations climate adaptation fund, ensuring First Nations communities can develop solutions on their own terms, and access the support they need with adapting to extreme heat, coastal erosion and other escalating challenges.

6. Be a better neighbour

The global response to climate change depends on the adequate flow of support from developed economies like Australia to lower income nations with shifting to clean energy, adapting to the impacts of climate change, and addressing loss and damage.

Such support is vital to building trust and cooperation, reducing global emissions, and supporting regional and global security by enabling countries to transition away from fossil fuels and build greater resilience.

Despite its central leadership role in this year’s global climate negotiations, our Government is yet to announce its contribution to international climate finance for 2025-2030. Greenpeace recommends a commitment of $11 billion for this five year period, which is aligned with the global goal under the Paris Agreement to triple international climate finance from current levels.
This new commitment should include additional funding to address loss and damage from climate change and a substantial contribution to the Pacific Resilience Facility, ensuring support is accessible to countries and communities that need it most. It should also see Australia get firmly behind the vision of a Fossil Fuel Free Pacific.

7. Protect nature

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

There is no safe planet without protection of the ecosystems and biodiversity that sustain us and regulate our climate.

Last year the Parliament passed important and long overdue reforms to our national environment laws to ensure better protection for our forests and other critical ecosystems. However, the Government will need to provide sufficient funding to ensure the effective implementation of these reforms.

Greenpeace has recommended $500 million over four years to establish the National Environment Agency — the body responsible for enforcing and monitoring the new laws — and a further $50 million to Environment Information Australia for providing critical information and tools.

Further resourcing will also be required to fulfil the crucial goal of fully protecting 30% of Australian land and seas by 2030. This should include $1 billion towards ending deforestation by enabling farmers and loggers to retool away from destructive practices, $2 billion a year for restoring degraded lands, $5 billion for purchasing and creating new protected areas, and $200 million for expanding domestic and international marine protected areas.

Conclusion

This is not the first time that conflict overseas has triggered an energy crisis, or that a budget has been preceded by a summer of extreme weather disasters, highlighting the urgent need to phase out fossil fuels. What’s different in 2026 is the availability of solutions. Renewable energy is now cheaper and more accessible than ever before. Global momentum is firmly behind the transition away from fossil fuels. The Albanese Government, with its overwhelming majority, has the chance to set our nation up for the future, or keep us stranded in the past. Let’s hope it makes some smart choices.

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

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What fossil fuels really cost us in a world at war

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Anne Jellema is Executive Director of 350.org.

The war on Iran and Lebanon is a deeply unjust and devastating conflict, killing civilians at home, destroying lives, and at the same time sending shockwaves through the global economy. We, at 350.org, have calculated, drawing on price forecasts from the International Monetary Fund (IMF) and Goldman Sachs, just how much that volatility is costing us. 

Even under the IMF’s baseline scenario – a de facto “best case” scenario with a near-term end to the war and related supply chain disruptions – oil and gas price spikes are projected to cost households and businesses globally more than $600 billion by the end of the year. Under the IMF’s “adverse scenario”, with prolonged conflict and sustained price pressures, we estimate those additional costs could exceed $1 trillion, even after accounting for reduced demand.

Which is why we urgently need a power shift. Governments are under growing pressure to respond to rising fuel and food costs and deepening energy poverty. And it’s becoming clearer to both voters and elected officials that fossil dependence is not only expensive and risky, but unnecessary. 

People who can are voting with their wallets: sales of solar panels and electric vehicles are increasing sharply in many countries. But the working people who have nothing to spare, ironically, are the ones stuck with using oil and gas that is either exorbitantly expensive or simply impossible to get.

Drain on households and economies

In India, street food vendors can’t get cooking gas and in the Philippines, fishermen can’t afford to take their boats to sea. A quarter of British people say that rising energy tariffs will leave them completely unable to pay their bills. This is the moment for a global push to bring abundant and affordable clean energy to all.

In April, we released Out of Pocket, our new research report on how fossil fuels are draining households and economies. We were surprised by the scale of what we found. For decades, governments have reassured people that energy price spikes are unfortunate but unavoidable – the result of distant conflicts, market forces or geopolitical shocks beyond anyone’s control. But the numbers tell a different story. 

    What we are living through today is not an energy crisis. It is a fossil fuel crisis. In just the first 50 days of the Middle East conflict, soaring oil and gas prices have siphoned an estimated $158 billion–$166 billion from households and businesses worldwide. That is money extracted directly from people’s pockets and transferred, almost instantly, into fossil fuel company balance sheets. And this figure only captures the immediate impact of price spikes, not the permanent economic drain of fossil dependence. Fossil fuels don’t just cost us once, they cost us over and over again.

    First, through our bills. Every time there is a war, an embargo or a supply disruption, fossil fuel prices surge. For ordinary people, this means higher costs for energy, transport and food. Many Global South countries have little or no fiscal space to buffer the shock; instead, workers and families pay the price.

    Second, through our taxes. Governments around the world continue to pour vast sums of public money into fossil fuel subsidies. These are often justified as a way to protect the most vulnerable at the petrol pump or in their homes. But in reality, the benefits are overwhelmingly captured by wealthier households and corporations. The poorest 20% receive just a fraction of this support, while public finances are drained.

    Third, through climate impacts. New research across more than 24,000 global locations gives a granular account of the true costs of extreme heat, sea level rise and falling agricultural yields. Using this data to update IMF modelling of the social cost of carbon, we found that fossil fuel impacts on health and livelihoods amount to over $9 trillion a year. This is the biggest subsidy of all, because these massive and mounting costs are not charged to Big Oil – they are paid for by governments and households, with the poorest shouldering the lion’s share. 

    Massive transfer of wealth to fossil fuel industry

    Adding up direct subsidies, tax breaks and the unpaid bill for climate damages, the total transfer of wealth from the public to the fossil fuel industry amounts to $12 trillion even in a “normal” year without a global oil shock. That’s more than 50% higher than the IMF has previously estimated, and equivalent to a staggering $23 million a minute.

    The fossil fuel industry has become extraordinarily adept at profiting from instability. When conflict drives up prices, companies do not lose, they gain. In the current crisis, oil producers and commodity traders are on track to secure tens of billions of dollars in additional windfall profits, even as households face rising bills and governments struggle to manage the fallout.

    Fossil fuel crisis offers chance to speed up energy transition, ministers say

    This growing disconnect is impossible to ignore. Investors are advised to buy into fossil fuel firms precisely because of their ability to generate profits in times of crisis. Meanwhile, ordinary people are told to tighten their belts.

    In 2026, unlike during the oil shocks of the 1970s, clean energy is no longer a distant alternative. Now, even more than when gas prices spiked due to Russia’s invasion of Ukraine in 2022, renewables are often the cheapest option available. Solar and wind can be deployed quickly, at scale, and without the volatility that defines fossil fuel markets.

    How to transition from dirty to clean energy

    The solutions are clear. Governments must implement permanent windfall taxes on fossil fuel companies to ensure that extraordinary profits generated during crises are redirected to support households. These revenues can be used to reduce energy bills, invest in public services, and accelerate the rollout of clean energy.

    Second, we must shift subsidies away from fossil fuels and towards renewable solutions, particularly those that can be deployed quickly and equitably, such as rooftop and community solar. This is not just about cutting emissions. It is about building a more stable, fair and resilient energy system.

    Finally, we need binding plans to phase out fossil fuels altogether, replacing them with homegrown renewable energy that can shield economies from future shocks. Because what the current crisis has made clear is this: as long as we remain dependent on fossil fuels, we remain vulnerable – to conflict, to price volatility and to the escalating impacts of climate change.

    The true price of fossil fuels is no longer hidden. It is visible in rising bills, strained public finances and communities pushed to the brink. And it is being paid, every day, by ordinary people around the world.

    It’s time for the great power shift

    Full details on the methodology used for this report are available here.

    The Great Power Shift is a new campaign by 350.org global campaign to pressure governments to bring down energy bills for good by ending fossil fuel dependence and investing in clean, affordable energy for all

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

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

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    What fossil fuels really cost us in a world at war

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    Traditional models still ‘outperform AI’ for extreme weather forecasts

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    Computer models that use artificial intelligence (AI) cannot forecast record-breaking weather as well as traditional climate models, according to a new study.

    It is well established that AI climate models have surpassed traditional, physics-based climate models for some aspects of weather forecasting.

    However, new research published in Science Advances finds that AI models still “underperform” in forecasting record-breaking extreme weather events.

    The authors tested how well both AI and traditional weather models could simulate thousands of record-breaking hot, cold and windy events that were recorded in 2018 and 2020.

    They find that AI models underestimate both the frequency and intensity of record-breaking events.

    A study author tells Carbon Brief that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    AI weather forecasts

    Extreme weather events, such as floods, heatwaves and storms, drive hundreds of billions of dollars in damages every year through the destruction of cropland, impacts on infrastructure and the loss of human life.

    Many governments have developed early warning systems to prepare the general public and mobilise disaster response teams for imminent extreme weather events. These systems have been shown to minimise damages and save lives.

    For decades, scientists have used numerical weather prediction models to simulate the weather days, or weeks, in advance.

    These models rely on a series of complex equations that reproduce processes in the atmosphere and ocean. The equations are rooted in fundamental laws of physics, based on decades of research by climate scientists. As a result, these models are referred to as “physics-based” models.

    However, AI-based climate models are gaining popularity as an alternative for weather forecasting.

    Instead of using physics, these models use a statistical approach. Scientists present AI models with a large batch of historical weather data, known as training data, which teaches the model to recognise patterns and make predictions.

    To produce a new forecast, the AI model draws on this bank of knowledge and follows the patterns that it knows.

    There are many advantages to AI weather forecasts. For example, they use less computing power than physics-based models, because they do not have to run thousands of mathematical equations.

    Furthermore, many AI models have been found to perform better than traditional physics-based models at weather forecasts.

    However, these models also have drawbacks.

    Study author Prof Sebastian Engelke, a professor at the research institute for statistics and information science at the University of Geneva, tells Carbon Brief that AI models “depend strongly on the training data” and are “relatively constrained to the range of this dataset”.

    In other words, AI models struggle to simulate brand new weather patterns, instead tending forecast events of a similar strength to those seen before. As a result, it is unclear whether AI models can simulate unprecedented, record-breaking extreme events that, by definition, have never been seen before.

    Record-breaking extremes

    Extreme weather events are becoming more intense and frequent as the climate warms. Record-shattering extremes – those that break existing records by large margins – are also becoming more regular.

    For example, during a 2021 heatwave in north-western US and Canada, local temperature records were broken by up to 5C. According to one study, the heatwave would have been “impossible” without human-caused climate change.

    The new study explores how accurately AI and physics-based models can forecast such record-breaking extremes.

    First, the authors identified every heat, cold and wind event in 2018 and 2020 that broke a record previously set between 1979 and 2017. (They chose these years due to data availability.) The authors use ERA5 reanalysis data to identify these records.

    This produced a large sample size of record-breaking events. For the year 2020, the authors identified around 160,000 heat, 33,000 cold and 53,000 wind records, spread across different seasons and world regions.

    For their traditional, physics-based model, the authors selected the High RESolution forecast model from the Integrated Forecasting System of the European Centre for Medium-­Range Weather Forecasts. This is “widely considered as the leading physics-­based numerical weather prediction model”, according to the paper.

    They also selected three “leading” AI weather models – the GraphCast model from Google Deepmind, Pangu-­Weather developed by Huawei Cloud and the Fuxi model, developed by a team from Shanghai.

    The authors then assessed how accurately each model could forecast the extremes observed in the year 2020.

    Dr Zhongwei Zhang is the lead author on the study and a researcher at Karlsruhe Institute of Technology. He tells Carbon Brief that many AI weather forecast models were built for “general weather conditions”, as they use all historical weather data to train the models. Meanwhile, forecasting extremes is considered a “secondary task” by the models.

    The authors explored a range of different “lead times” – in other words, how far into the future the model is forecasting. For example, a lead time of two days could mean the model uses the weather conditions at midnight on 1 January to simulate weather conditions at midnight on 3 January.

    The plot below shows how accurately the models forecasted all extreme events (left) and heat extremes (right) under different lead times. This is measured using “root mean square error” – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy.

    The chart on the left shows how two of the AI models (blue and green) performed better than the physics-based model (black) when forecasting all weather across the year 2020.

    However, the chart on the right illustrates how the physics-based model (black) performed better than all three AI models (blue, red and green) when it came to forecasting heat extremes.

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

    The authors note that the performance gap between AI and physics-based models is widest for lower lead times, indicating that AI models have greater difficulty making predictions in the near future.

    They find similar results for cold and wind records.

    In addition, the authors find that AI models generally “underpredict” temperature during heat records and “overpredict” during cold records.

    The study finds that the larger the margin that the record is broken by, the less well the AI model predicts the intensity of the event.

    ‘Warning shot’

    Study author Prof Erich Fischer is a climate scientist at ETH Zurich and a Carbon Brief contributing editor. He tells Carbon Brief that the result is “not unexpected”.

    He adds that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    The analysis, he continues, is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    AI models are likely to continue to improve, but scientists should “not yet” fully replace traditional forecasting models with AI ones, according to Fischer.

    He explains that accurate forecasts are “most needed” in the runup to potential record-breaking extremes, because they are the trigger for early warning systems that help minimise damages caused by extreme weather.

    Leonardo Olivetti is a PhD student at Uppsala University, who has published work on AI weather forecasting and was not involved in the study.

    He tells Carbon Brief that “many other studies” have identified issues with using AI models for “extremes”, but this paper is novel for its specific focus on extremes.

    Olivetti notes that AI models are already used alongside physics-based models at “some of the major weather forecasting centres around the world”. However, the study results suggest “caution against relying too heavily on these [AI] models”, he says.

    Prof Martin Schultz, a professor in computational earth system science at the University of Cologne who was not involved in the study, tells Carbon Brief that the results of the analysis are “very interesting, but not too surprising”.

    He adds that the study “justifies the continued use of classical numerical weather models in operational forecasts, in spite of their tremendous computational costs”.

    Advances in forecasting

    The field of AI weather forecasting is evolving rapidly.

    Olivetti notes that the three AI models tested in the study are an “older generation” of AI models. In the last two years, newer “probabilistic” forecast models have emerged that “claim to better capture extremes”, he explains.

    The three AI models used in the analysis are “deterministic”, meaning that they only simulate one possible future outcome.

    In contrast, study author Engelke tells Carbon Brief that probabilistic models “create several possible future states of the weather” and are therefore more likely to capture record-breaking extremes.

    Engelke says it is “important” to evaluate the newer generation of models for their ability to forecast weather extremes.

    He adds that this paper has set out a “protocol” for testing the ability of AI models to predict unprecedented extreme events, which he hopes other researchers will go on to use.

    The study says that another “promising direction” for future research is to develop models that combine aspects of traditional, physics-based weather forecasts with AI models.

    Engelke says this approach would be “best of both worlds”, as it would combine the ability of physics-based models to simulate record-breaking weather with the computational efficiency of AI models.

    Dr Kyle Hilburn, a research scientist at Colorado State University, notes that the study does not address extreme rainfall, which he says “presents challenges for both modelling and observing”. This, he says, is an “important” area for future research.

    The post Traditional models still ‘outperform AI’ for extreme weather forecasts appeared first on Carbon Brief.

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