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We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.

This is an online version of Carbon Brief’s fortnightly Cropped email newsletter. Subscribe for free here.

Key developments

COP30 roundup

FOOD OFF THE MENU: COP30 wrapped up in the Brazilian Amazon city of Belém, with several new announcements for forest protection, but with experts saying that food systems were seemingly “erased” from official negotiations, Carbon Brief reported. Other observers told the Independent that the lack of mention of food in some of the main negotiated outcomes was “surprising” and “deeply disappointing”. The outlet noted that smallholder farmers spend an “estimated 20 to 40% of their annual income on adaptive measures…despite having done next to nothing to contribute to the climate crisis”.

‘BITTERSWEET’: Meanwhile, Reuters said that the summit’s outcomes for trees and Indigenous peoples were “unprecedented”, but “bittersweet”. It noted that countries had “unlocked billions in new funds for forests” through the Tropical Forest Forever Facility. (For more on that fund, see Carbon Brief’s explainer.) However, the newswire added, “nations failed to agree on a plan to keep trees standing as they have repeatedly promised to do in recent summits”. Mongabay noted that pledges to the new forest fund totalled “less than a quarter of the $25bn initially required for a full-scale rollout”.

‘MIXED OUTCOMES’: A separate piece in Mongabay said that COP30 “delivered mixed outcomes” for Indigenous peoples. One positive outcome was a “historic pledge to recognise Indigenous land tenure rights over 160m hectares” of tropical forest land, the outlet said. This was accompanied by a monetary pledge of $1.8bn to support “Indigenous peoples, local and Afro-descendant communities in securing land rights over the next five years”, it added. However, Mongabay wrote, there were some “major disappointments” around the summit’s outcomes, particularly around the absence of mention of critical minerals and fossil-fuel phaseout in the final texts.

Africa on edge

SOMALIA DROUGHT: Somalia officially declared a drought emergency last month “after four consecutive failed rainy seasons left millions at risk of hunger and displacement”, allAfrica reported, with 130,000 people in “immediate life-threatening need”. According to Al Jazeera, more than 4.5 million people “face starvation”, as “failed rains and heat devastated” the country, with displaced communities also “escaping fighting” in their villages and aid cuts impacting relief. Down to Earth, meanwhile, covered an Amnesty International report that demonstrated that Somalia failed to “implement a functional social-security system for the marginalised, particularly those negatively affected by drought”.

COCOA CRASH: Ivory Coast’s main cocoa harvest is expected to “decline sharply for [the] third consecutive year” due to erratic rainfall, crop disease, ageing farms and poor investment, Reuters reported. Africa Sustainability Matters observed that the delayed implementation of the EU’s deforestation law – announced last week – could impact two million smallholder farmers, who may see “delays in certification processes ripple through payment cycles and export volumes”. Meanwhile, SwissInfo reported that the “disconnect between high global cocoa prices and the price paid to farmers” is leading to “unprecedented cocoa smuggling” in Ghana.

‘FERTILISER CRISIS’: Nyasa Times reported that, “for the first time”, Malawian president Peter Mutharika admitted that the country is “facing a planting season…for which his government is dangerously unprepared”. According to the paper, Mutharika acknowledged that the country is “heading into the rains without adequate fertiliser and with procurement dangerously behind schedule” at a meeting with the International Monetary Fund’s Africa director. “We are struggling with supplies… We are not yet ready in terms of fertiliser,” Mutharika is quoted as saying, with the paper adding that his administration is “overwhelmed” by a fertiliser crisis.

News and views

PLANT TALKS COLLAPSE: “Decade-long” talks aimed at negotiating new rules for seed-sharing “collapsed” after week-long negotiations in Lima, Euractiv reported. The International Treaty on Plant Genetic Resources for Food and Agriculture allows “any actor to access seed samples of 64 major food crops stored in public gene banks”, but “virtually no money flows back to countries that conserve and share seed diversity”, the outlet said. Observers “criticised the closed-door nature of the final talks”, which attempted to postpone a decision on payments until 2027, it added.

UNSUSTAINABLE: The UK food system is driving nature loss and deepening climate change, according to a new WWF report. The report analysed the impacts on nature, climate and people of 10 UK retailers representing 90% of the domestic grocery market. Most of the retailers committed in 2021 to halving the environmental impact of the UK grocery market by 2030. However, the report found that the retailers are “a long way off” on reducing their emissions and sourcing products from deforestation-free areas.

GREY CARBON: A “flurry” of carbon-credit deals “covering millions of hectares of landmass” across Africa struck by United Arab Emirates-based firm Blue Carbon on the sidelines of COP28 “have gone nowhere”, according to a joint investigation by Agence-France Presse and Code for Africa. In Zimbabwe – where the deal included “about 20% of the country’s landmass” – national climate change authorities said that the UAE company’s memorandum of understanding “lapsed without any action”. AFP attempted multiple ways to contact Blue Carbon, but received no reply. Meanwhile, research covered by New Scientist found that Africa’s forests “are now emitting more CO2 than they absorb”.

UK NATURE: The UK government released an updated “environmental improvement plan” to help England “meet numerous legally binding goals” for environmental restoration, BusinessGreen reported. The outlet added that it included measures such as creating “wildlife-rich habitats” and boosting tree-planting. Elsewhere, a study covered by the Times found that England and Wales lost “almost a third of their grasslands” in the past 90 years. The main causes of grassland decline were “increased mechanisation on farms, new agrochemicals and crop-growing”, the Times said.

IN DANGER: The Trump administration proposed changes to the US Endangered Species Act that “could clear the way for more oil drilling, logging and mining” in key species habitats, reported the New York Times. This act is the “bedrock environmental law intended to prevent animal and plant extinctions”, the newspaper said, adding that one of the proposals could make it harder to protect species from future threats, such as the effects of climate change. It added: “Environmental groups are expected to challenge the proposals in court once they are finalised.”

‘ALREADY OVERSTRETCHED’: Producing enough food to feed the world’s growing population by 2050 “will place additional pressure on the world’s already overstretched” resources, according to the latest “state of the world’s land and water resources” report from the UN Food and Agriculture Organization. The report said that degradation of agricultural lands is “creating unprecedented pressure on the world’s agrifood systems”. It also found that urban areas have “more than doubled in size in just two decades”, consuming 24m hectares “of some of the most fertile croplands” in the process.

Spotlight

Saudi minister interviewed

During the second week of COP30 in Belém, Carbon Brief’s Daisy Dunne conducted a rare interview with a Saudi Arabian minister.

Dr Osama Faqeeha is deputy environment minister for Saudi Arabia and chief adviser to the COP16 presidency on desertification.

Carbon Brief: Thank you very much for agreeing to this interview. You represent the Saudi Arabia COP16 presidency on desertification. What are your priorities for linking desertification, biodiversity and climate change at COP30?

Dr Osama Faqeeha: First of all, our priority is to really highlight the linkages – the natural linkage – between land, climate and biodiversity. These are all interconnected, natural pillars for Earth. We need to pursue actions on the three together. In this way, we can achieve multiple goals. We can achieve climate resilience, we can protect biodiversity and we can stop land degradation. And this will really give us multiple benefits – food security, water security, climate resilience, biodiversity and social goals.

CB: Observers have accused Saudi Arabia, acting on behalf of the Arab group, of blocking an ambitious outcome on a text on synergies between climate change and biodiversity loss, under the item on cooperation with international organisations. [See Carbon Brief’s full explanation.] What is your response?

OF: We support synergies in the action plans. We support synergies in the financial flows. We support synergies in the political [outcome]. What we don’t support is trying to reduce all of the conventions. We don’t support dissolving the conventions. We need a climate convention, we need a biodiversity convention and we need a desertification convention. There was this incident, but the discussion continued after that and has been clarified. We support synergies. We oppose dissolution. This way we dilute the issues. No. This is a challenge. But we don’t have to address them separately. We need to address them in a comprehensive way so that we can really have a win-win situation.

CB: But as the president of the COP16 talks on desertification, surely more close work on the three Rio conventions would be a priority for you?

OF: First of all, we have to realise the convention is about land. Preventing land degradation and combating drought. These are the two major challenges.

Dr Osama Faqeeha. Credit: Supplied

CB: We’re at COP30 now and we’re at a crucial point in the negotiations where a lot of countries have been calling for a roadmap away from fossil fuels. What is Saudi Arabia’s position on agreeing to a roadmap away from fossil fuels?

OF: I think the issue is the emissions, it’s not the fuel. And our position is that we have to cut emissions regardless. In Saudi Arabia, in our nationally determined contribution [NDC], we doubled [the 2030 emissions reductions target] – from 130MtCO2 to 278MtCO2 – on a voluntary basis. So we are very serious about cutting emissions.

CB: The presidency said that some countries see the fossil-fuel roadmap as a red line. Is Saudi Arabia seeing a fossil-fuel roadmap as a red line for agreement in the negotiations?

OF: I think people try to put pressure on the negotiation to go in one way or another. And I think we should avoid that because, trying to demonise a country, that’s not good. Saudi Arabia is a signatory to the Paris Agreement. Saudi Arabia made the Paris Agreement possible. We are committed to the Paris Agreement.

[Carbon Brief obtained the “informal list” of countries that opposed a fossil-fuel roadmap at COP30, which included Saudi Arabia.]

CB: You mention that you feel sometimes the media demonises Saudi Arabia. So could you clarify, what do you hope to be Saudi Arabia’s role in guiding the negotiations to conclusion here at this COP?

OF: I think we have to realise that there is common but differentiated responsibilities. We have developed countries and developing countries. We have to realise that this is very well established in the convention. We can reach the same end point, but with different pathways. And this is what the negotiation is all about. It’s not one size fits all. What works with a certain country may not work with another country. So, I think people misread the negotiations. We, as Saudi Arabia, officially announced that we will reach carbon neutrality by 2060 – and we are putting billions and billions of dollars to reach this goal. But it doesn’t mean that we agree on everything. On every idea. We agree to so many things, you never hear that. Saudi Arabia agrees on one thousand points and we disagree on one point, then suddenly it becomes the news. Now, why does the media do that? Maybe that gives them more attention. I don’t know. But all I can tell you is that Saudi Arabia is part of the process. Saudi Arabia is making the process work.

This interview has been edited for length.

Watch, read, listen

NEW CHALLENGE: CNN discussed the environmental impacts of AI usage and how scientists are using it to conserve biodiversity.

AMAZON COP: In the Conversation, researchers argued that hosting COP30 in the Amazon made the “realities of climate and land-use change jarringly obvious” and Indigenous voices “impossible to ignore”.

DUBIOUS CLAIMS: DeSmog investigated an EU-funded “campaign blitz” that “overstated the environmental benefits of eating meat and dairy, while featuring bizarre and misleading claims”.

WASP’S NEST: In a talk for the Leverhulme Centre for Nature Recovery, Prof Seirian Sumner explained the “natural capital” of wasps and why it is important to “love the unlovable parts of nature”.

New science

  • Climate change can “exacerbate” the abundance and impacts of plastic pollution on terrestrial, freshwater and marine ecosystems | Frontiers in Science
  • The North Sea region accounts for more than 20% of peatland-related emissions within the EU, UK, Norway and Iceland, despite accounting for just 4% of the region’s peatland area | Nature Communications
  • Economic damages from climate-related disasters in the Brazilian Amazon rose 370% over 2000-22, with farming experiencing more than 60% of total losses | Nature Communications

In the diary

Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz.  Ayesha Tandon also contributed to this issue. Please send tips and feedback to cropped@carbonbrief.org

The post Cropped 3 December 2025: Extreme weather in Africa; COP30 roundup; Saudi minister interview appeared first on Carbon Brief.

Cropped 3 December 2025: Extreme weather in Africa; COP30 roundup; Saudi minister interview

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

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

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

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

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

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

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

1. Stop fuelling the fire

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

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

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

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

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

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

2. Make big polluters pay

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

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

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

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

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

3. Support everyone to be part of the solution

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

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

4. Build the industries of the future

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

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

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

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

5. Build community resilience

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

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

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

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

6. Be a better neighbour

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

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

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

7. Protect nature

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

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

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

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

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

Conclusion

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

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

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What fossil fuels really cost us in a world at war

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Anne Jellema is Executive Director of 350.org.

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

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

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

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

Drain on households and economies

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

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

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

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

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

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

    Massive transfer of wealth to fossil fuel industry

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

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

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

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

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

    How to transition from dirty to clean energy

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

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

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

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

    It’s time for the great power shift

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

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

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

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

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

    What fossil fuels really cost us in a world at war

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    Traditional models still ‘outperform AI’ for extreme weather forecasts

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

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

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

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

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

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

    AI weather forecasts

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

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

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

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

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

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

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

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

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

    However, these models also have drawbacks.

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

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

    Record-breaking extremes

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    They find similar results for cold and wind records.

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

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

    ‘Warning shot’

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

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

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

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

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

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

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

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

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

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

    Advances in forecasting

    The field of AI weather forecasting is evolving rapidly.

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

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

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

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

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

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

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

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

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

    Traditional models still ‘outperform AI’ for extreme weather forecasts

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