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Welcome to Carbon Brief’s Cropped.
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

Poor showing for national biodiversity plans

COP16 COMING UP: Just 10% of countries have submitted updated national biodiversity plans ahead of the COP16 summit, according to Carbon Brief’s tracker (which will be updated again next week). Almost 200 countries agreed to submit new “national biodiversity strategies and action plans”, or NBSAPs, before the UN biodiversity talks, which begin on 21 October in Cali, Colombia. Only 21 plans have been submitted so far. Carbon Brief reported last week that the UK will not publish its plan until the new year, also missing the UN’s COP16 deadline. Separately, a report showed that less than 3% of land in England is “effectively protected”, BusinessGreen said, adding that the UK is falling “badly” behind the pledge to protect 30% of its land and sea by 2030. Elsewhere, Dialogue Earth examined new NBSAP targets from China, the president of the previous biodiversity summit COP15.

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UNITE THE PLEDGES: COP16 hosts Colombia called for national pledges for the biodiversity, climate and desertification COPs to be unified in future, Reuters reported. The country’s environment minister and COP16 president Susana Muhamad said that creating a “synthesis plan”, instead of separate submissions, could improve “synergies” between the interconnected issues. Colombia is among the countries that have not submitted a new NBSAP ahead of COP16. A profile of Muhamad in the Guardian examined how the “Frida Kahlo of environmental geopolitics” went from working as a sustainability consultant at Shell to being “one of the biggest opponents of fossil fuel on the world stage”. 

TALKING POINTS: COP16 will focus on “implementation and financing”, the EU’s lead negotiator at the Cali talks, Hugo-Maria Schally, told Agence France-Presse. The Inter Press Service said that key discussions centre on how to “generate financial resources that recognise the contribution of countries that are reservoirs of biodiversity, without resulting in greater indebtedness for nations in the global south”. Latin American civil society groups called for more inclusive biodiversity decision-making involving “ethnic and peasant peoples” and local communities, El Espectador reported. Carbon Brief has just published an interactive table outlining where countries stand on key issues. Five Carbon Brief journalists will be reporting from Cali throughout the summit, so keep an eye out for webinars, analysis and summaries over the next few weeks.

Environment investigations

WATCHING OPPOSITION: A Lighthouse Reports investigation found that the US-based PR firm v-Fluence used US government funding to discredit environmentalists and scientists opposing pesticides and genetically modified crops. The outlet noted that the firm profiled hundreds of scientists, campaigners and writers and published their dossiers on a private social network, providing access to executives at the world’s largest pesticide companies and government officials. It added: “v-Fluence denies having held government contracts now or in the past, but said that the US government was a ‘funder of other organisations with whom we work’.” The Wire added that the company was founded and is still run by a former Monsanto communications director.

FOCUS ON THE SOIL: A collaborative special report, published by Earth Journalism Network, the Pulitzer Center’s Rainforest Investigation Network and other outlets, explored the drivers of soil degradation in Asia. The investigation, carried out by 11 journalists from 10 countries, identified persistent problems, such as poor soil-management practices, rapid urbanisation and unsustainable agriculture. The report also explained the consequences of soil degradation and salinisation and potential solutions for soil conservation and regenerative agriculture.

THREATENED WILDLIFE: The Journal revealed how the Irish black market sells foxes, badgers and hares as live bait. The outlet reported that those animals “are being used to ‘blood’ vicious hunting dogs, whose owners engage in brutal acts of wildlife cruelty”, such as illegal hare coursing and dog-on-wildlife attacks. However, their prosecutions “aren’t recorded as criminal convictions”. Meanwhile, vast areas of forests and rainforests in south-west Mexico will be cleared to make way for the Interoceanic Corridor of the Isthmus of Tehuantepec, according to El Universal. The newspaper added that the corridor would industrialise the region, polluting water, land and air and killing wildlife. 

Spotlight

‘Now really is nature’s moment’

In this Spotlight, Carbon Brief speaks to Astrid Schomaker, the new executive secretary of the Convention on Biological Diversity – the international agreement behind the upcoming COP16 talks in Cali, Colombia. The full interview will be published on Carbon Brief’s website this week.

Carbon Brief: How are you feeling ahead of COP16?

Astrid Schomaker: Mostly excited and quite optimistic. For us in the convention, it’s a big moment. We had an ambitious framework put in place just two years ago and now we need to look at whether this has actually been the game-changer that people think it has been…Now really is nature’s moment.

CB: What are the main outcomes you want to see from COP16?

AS: The first thing is to have a look at how implementation is actually progressing. We said at COP15 [that] countries should prioritise national targets. So far, we have 79 countries that have put national targets in place. We expect more by COP and maybe also some to be announced at COP…On the national biodiversity strategies and action plans, the number does not look quite so good. We are at 20 so far. Again, we know lots of countries are now finalising their plans, stepping up action. One may think it’s a low number – and certainly this has been pointed out by some NGOs…I think the important thing is to look that progress is there and I’m confident that, by the end of the year, the number will be significantly higher. 

CB: President Lula from Brazil and other world leaders will be at COP16. Do you think this will boost the profile of biodiversity COPs?

AS: I think the intention of Colombia as a host – and, of course, we very much support that – is to demonstrate that the nature crisis has to be understood as being at the same level of seriousness as the climate crisis…We will not be able to look at climate change in isolation from the nature and biodiversity crisis…By bringing heads of state and government that are talking about this a lot to our COP, I think we will succeed more to get this message heard by a wider audience.

CB: Azerbaijan recently put its name forward to host the next biodiversity COP summit [in 2026]. What is your reaction to that, especially given some of the controversies around them hosting this year’s climate COP?

AS: We have two offers on the table at the moment – Azerbaijan and Armenia…Hosting a COP is a huge responsibility and I think Azerbaijan experiences this now, as they’re getting ready to host the climate COP. If a country puts itself forward, it puts its national policies under a global spotlight. So I think it takes courage to do it and we’re grateful that we have two candidates that want to host us in 2026.

News and views

ANIMAL IMPACT: Hurricane Helene – which tore through six US states and killed at least 230 people last week – damaged more than 100 poultry facilities and 15 dairy farms in Georgia, Inside Climate News reported. The hurricane “underscore[s] the perils of raising tens of thousands of animals in industrial-scale facilities as weather patterns grow more extreme”, the outlet said. Meanwhile, Florida is set to be hit again by Hurricane Milton, which experts warned may “result in significant losses of vegetables and fruit crops” and could send food prices “sky high”, according to Newsweek. The Washington Post profiled the efforts at Florida’s zoos and aquariums to prepare their animals to withstand the storm.

DIGGING DEEP: The Amazon river is “parched” after being “battered by back-to-back droughts fuelled by climate change”, the New York Times said. It added that water levels in some stretches fell to their lowest level on record last month. Brazil plans to begin “dredging” to deepen parts of the river – a measure the newspaper said “might have been unthinkable not too long ago”. Some scientists warn that this “could leave lasting marks on aquatic systems, disrupting and potentially harming plants and animals”, the newspaper said. Meanwhile, a World Meteorological Organization report found that last year was the “driest” in more than three decades for rivers globally. 

NEW GREEN REVOLUTION: The push for a new “green revolution” in Africa is stirring up old debates, Reuters reported. The newswire cited a study that indicates that around 65% of Africa’s farmland is degraded or unproductive due to the overuse of chemical fertilisers, contributing to the food insecurity of more than 270 million people. It added that the Alliance for Food Sovereignty in Africa, a coalition of civil societies and farmers’ groups, advocates for a transition to agroecology, while agribusiness companies rely on new technologies for boosting soil health. 

DELAY FOR CONSERVATION: The EU intends to delay the implementation of its anti-deforestation law for one year amid growing concerns from international trading partners, the Financial Times reported. The European Commission pointed out that the pause would give countries and companies “additional time to prepare” for implementation. Environmental groups criticised the decision. Julian Oram, senior policy director at Mighty Earth, said the postponement would push “climate and nature goals out of reach”. The European parliament and member states must approve the proposal ahead of the law entering into force on 30 December, according to the outlet.

METHANE MADNESS: The methane emissions from 29 major meat and dairy companies “rival those of the 100 biggest corporations in the fossil fuel sector”, according to a report from Greenpeace. The environmental NGO’s calculations estimate that the 29 companies collectively emit 20m tonnes of methane each year – one-fifth of all livestock methane emissions globally. Greenpeace also estimated that “business as usual” meat and dairy production and consumption could add an extra 0.32C of warming by 2050. Shefali Sharma, a co-author on the report and global agriculture campaigner at Greenpeace Nordic, told Carbon Brief: “For everyday people, that [0.32C] might not mean much. But for those of us who have been following climate, this is huge. So it’s time that we really do take this head on.” 

CLIMATE EDUCATION: The Associated Press covered a German programme aiming to educate students, farmers and breweries on climate change. The initiative came up in a plant nursery at the Society of Hop Research in Munich, which holds 7,000 seedlings of hops, many of which are new varieties that are resilient to diseases and drought. The newswire said that the plants will be taken to universities, “vocational schools, breweries and farms across Germany”.

Watch, read, listen

HOME TIES: A new documentary Taste of the Land explored the filmmaker’s relationship with her homeland, Cambodia, and its changing landscapes.   

ACCUSATIONS: Also in Cambodia, Mongabay detailed how an environmental journalist covering deforestation “has himself been charged with deforestation”.

WASTE NOT: A Guardian long read examined the “scandal of food waste” and the hurdles standing in the way of reducing it.

BURYING TREES: In this Science podcast, a professor at the University of Maryland explored how burying trees could help sequester carbon emissions.

New science

  • If all unmanaged coral reefs were to apply fishing restrictions, reef fish biomass would rise by 10.5%, according to new research published in the Proceedings of the National Academy of Sciences. Using a conservation model based on 2,600 reef sites, scientists found that current fishing restrictions are responsible for preserving 10% of current fish biomass on reefs.
  • Many South American regions experienced a three-fold increase in the number of days with “extreme fire weather conditions” since 1971, according to research published in Communications Earth & Environment. The researchers analysed changes in the weather conditions that can boost fire risk, finding those extremes “disproportionally affect vulnerable rural populations and minorities”. 
  • More than half of tropical rainforests could turn into dry savannah by the end of this century under a future scenario with very high global greenhouse gas emissions, an npj Climate and Atmospheric Science study found. The researchers wrote that the situation is “more critical” in the Amazon, which may “become an open-canopy, highly degraded ecosystem”, if it hits a tipping point. 

In the diary

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

The post Cropped 9 October 2024: COP16 looms; ‘Parched’ Amazon river; UN biodiversity chief Q&A appeared first on Carbon Brief.

Cropped 9 October 2024: COP16 looms; ‘Parched’ Amazon river; UN biodiversity chief Q&A

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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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Climate Change

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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    Climate Change

    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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