A global shift towards “healthier” diets could cut non-CO2 greenhouse gas emissions, such as methane, from agriculture by 15% by 2050, according to a new report.
The EAT-Lancet Commission report on “healthy, sustainable and just food systems” says this diet would require producing more fruit, vegetables and nuts, as well as fewer livestock.
The findings build on the widely cited 2019 report from the EAT-Lancet Commission – a group of leading experts in nutrition, climate, economics, health, social sciences and agriculture from around the world.
The new report notes that one-third of all greenhouse gas emissions come from the global food system.
These emissions are so great that, even if all fossil fuels were phased out, “food can on its own push us beyond the 1.5C limit”, one of the commission co-chairs, Prof Johan Rockström, told a press briefing.
The report details a “planetary health diet” – a concept first introduced in the 2019 report – which focuses on “plant-rich” and “minimally processed” foods.
The latest edition builds on the previous report by adding improved modelling of food-system transformation and adding social-justice considerations.
The 2019 report faced a “massive online backlash” against some of its findings, particularly on cutting meat consumption, DeSmog reported earlier this year, which was “stoked by a PR firm that represents the meat and dairy sector”.
Rockström said the commission is “ready to meet that assault” if it arises again and issued concern “over this return of mis- and disinformation and denialism on climate science”.
Here, Carbon Brief picks out three key takeaways from the latest report.
- A ‘plant-rich’ diet has the best health and climate outcomes
- Transforming food systems could ‘substantially reduce’ the associated emissions
- Social justice should be a ‘central goal’ in transforming global food systems
A ‘plant-rich’ diet has the best health and climate outcomes
The new report recommends a plant-rich “planetary health diet”, which is largely the same as the one first outlined in the 2019 report.
The diet is designed to be flexible and “compatible with many foods, cultures, dietary patterns, traditions and individual preferences”, the report says.
It does not exclude meat or dairy products – the foods that cause the highest emissions – but recommends limited portions, equating to around one glass of milk per day and a couple of servings of meat and two eggs each week, for those whose diets include them.
The chart below outlines the recommended intake of different foods, adding up to around 2,400 calories each day. A range is given for each food type to accommodate different diets. The categories with the largest intakes include whole grains, plant oils, nuts and legumes.
The diet is “designed for health…[not] sustainability”, Dr Line Gordon, a commissioner on the report, told a press briefing.
But the report also analyses the climate impact of the recommendations. It estimates that shifting to the planetary diet could reduce global non-CO2 agricultural emissions – from greenhouse gases such as methane and nitrous oxide – by 15% by 2050. (See: Transforming food systems could ‘substantially reduce’ the associated emissions.)
Widespread adoption of the diet would require a two-thirds increase in fruit, vegetable and nut production and allow for a one-third reduction in livestock meat production, compared to 2020 levels.
Currently, diets across the globe all “deviate substantially” from the report’s recommendations. But the report claims that, due to the planetary diet’s health benefits, around 15 million “avoidable” deaths could be prevented each year if it were widely adopted.
The report also measures how much global food systems contribute to the nine planetary boundaries – a concept of global thresholds for a “safe and just” planet. It finds that food systems are the largest contributor to five breaches of these boundaries, which include changes in the use of land and freshwater.
In terms of steps to move towards the planetary diet, Gordon listed actions such as changing taxes to make healthy foods more affordable, clearly labelling foods and shifting agricultural production subsidies towards healthier foods.
The report highlights that “transforming food systems is not only possible, it’s essential to securing a safe, just and sustainable future for all”, Rockström says in a statement.
Transforming food systems could ‘substantially reduce’ the associated emissions
Food systems are responsible for about one-third of human-driven greenhouse gas emissions.
These emissions are roughly equally partitioned between livestock and crop production, land-use change and other aspects of the food system, including refrigeration, fertilisers, transport and retail, according to the report.
The authors use global economic models to determine how different actions towards transforming food systems could affect agricultural production, environmental impact and food prices.
For the baseline, they use a set of “business-as-usual” parameters. This scenario uses SSP2-7.0, a high-emissions pathway under which there is a global population of 9.6 billion people and global warming of 2C above pre-industrial temperatures in 2050.
Using these assumptions, the business-as-usual scenario results in a 37% increase in global agricultural production and a 33% rise in non-CO2 agricultural emissions by 2050, compared to 2020. Crop yields increase by nearly one-quarter in this scenario, while the amount of land used for agricultural cultivation expands by 2m square kilometres (km2) – an area roughly the size of Mexico.
The chart below shows the changes in non-CO2 agricultural emissions and agricultural land use under each scenario, with the three main scenarios highlighted in green. The dots indicate the results from different model runs.
The dietary transformation projection assumes a world in which there is total adherence to the suggested diet, a halving of food loss and waste and an additional 7-10% increase in global agricultural productivity.
They find that, in this scenario, agricultural emissions of non-CO2 greenhouse gases decline by 20% compared to 2020 values. Although cropland will have to expand to account for the increased intake of fruits, vegetables and legumes, the decrease in land needed for livestock-rearing means that agricultural land use will fall overall by 3.4m km2, an area the size of India.
The authors also consider a scenario that combines the dietary shifts with “ambitious mitigation” efforts. This includes policies such as carbon pricing and land-use regulations that could drive the adoption of bioenergy, afforestation and renewable energy, the report says.
Under widespread dietary shifts and ambitious mitigation, the report finds that non-CO2 emissions from agriculture will fall by 34% compared to 2020, and the reduction in agricultural land use will double compared to the scenario that only factors in the dietary shifts.
Social justice should be a ‘central goal’ in transforming global food systems
In a step further than its predecessor, the new report assesses justice in global food systems, by analysing the rights to food, a healthy environment and decent work.
The focus on social equity and justice added a “tremendous broader aspect” to the report, Dr Shakuntala Thilsted, one of the commission co-chairs, said in a briefing.
The report notes that more than half of the world’s population struggles to access healthy diets, which leads to “devastating consequences for public health, social equity and the environment”.
This primarily affects marginalised people living in low-income regions, it says.
The report finds that the diets of the world’s richest 30% of the population contribute to more than 70% of environmental pressures from food systems, such as land use and greenhouse gas emissions. The report says:
“These statistics highlight the large inequalities in the distribution of both benefits and burdens of current food systems.”
Furthermore, living and working in toxic-free environments and stable climate conditions is a “crucial” human right, it adds.
According to the report, “power asymmetries and discriminatory social and political structures” – such as the concentration of power among a small number of agribusiness firms – hinder the fulfilment of those rights.
The report says that social justice, along with environmental sustainability, should be central to global food systems.
It proposes several steps to making healthy, sustainable and just food systems more accessible by 2050: securing decent working conditions, ensuring liveable wages, recognising and protecting marginalised groups and limiting market concentration.
It notes that while taking steps to mitigate climate change will increase food costs – particularly in areas that currently do not consume adequate fruits and vegetables, and where animal-sourced food is less commonly eaten – some of these pressures can be alleviated by introducing subsidies targeted towards those preferred food groups.
Finally, the authors underscore that implementing this diet must consider both cultural context and sustainability.
However, they also warn that meeting these goals requires global action and “transformative change” in both individual and cultural habits.
The post EAT-Lancet report: Three key takeaways on climate and diet change appeared first on Carbon Brief.
EAT-Lancet report: Three key takeaways on climate and diet change
SYDNEY, Thursday 30 October 2026 — In response to reports that the Albanese government is set to introduce draft legislation this year that would seek to ban data centres in Australia’s suburbs, Joe Rafalowicz, Head of Climate and Energy at Greenpeace Australia Pacific, said:
“These reports are a testament to the growing community opposition to these completely inappropriate AI factories that have sprung up across our suburbs, and Big Tech corporations should take heed — the data centre build-out must not happen without the endorsement of the Australian people.
“But the government can’t simply ship this problem out to regional Australia without addressing the fundamental issues with this extractive new industry.
“We’re already seeing a trend of AI data centre proposals moving to the regions, in areas that are more water-scarce, more environmentally sensitive, and next to sources of fracked and coal seam gas to support their massive BYO gas-fired power plans — a pattern we’ve seen play out in the United States.
“From the Beetaloo Basin in the NT to the Western Downs in Qld, we’re seeing a wave of AI data centre proposals that would see new gas fast-tracked to support their massive energy demand, and threaten to completely derail Australia’s energy transition.
“Just as suburban Australians are asking, “what for?”, regional communities like Berry Springs and Dalby do not want dirty data centres setting up shop with absolutely no benefit to their communities. Greenpeace is calling for a moratorium on AI data centre developments until strict and enforceable safeguards are in place to protect our climate and our communities.”
-ENDS-
Media contact
Kate O’Callaghan on +61 406 231 892 or kate.ocallaghan@greenpeace.org
AI data centre ban in suburbs would not address fundamental issues: Greenpeace
In the thick of the COP29 climate summit in Azerbaijan in 2024, the UN climate talks were rattled by what can only be described as a major PR disaster. The BBC, Reuters and The Guardian all carried headlines, attributed to leading climate policy experts, that the COPs were “no longer fit for purpose”.
The articles outlined a series of reforms called for in an open letter signed by 22 eminent scientists and politicians, including a former UN secretary-general and previous UN climate chief, with a further 150 lending their support. The headlines shook confidence in the COP process, just as governments were wrestling over a new climate finance goal.
The Club of Rome – which handled the media relations for the letter – hurried to say that its “constructive, supportive ideas” had been “misinterpreted”. Negotiators kept calm(ish) and carried on, in the end landing the finance goal after some high-stakes drama on the final day.
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Early speakers’ list suggests few powerful leaders will attend COP31
Just 77 heads of state or government are scheduled to address the COP31 climate summit in Antalya, a third less than the COP28 peak -
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The African Group wants dedicated space on tripling adaptation finance, the Green Climate Fund and trade, setting up a possible clash
To my surprise, when I went back this week to read the letter again, I could not find the offending line about the COPs not being fit for purpose. The Club of Rome has yet to respond to my query about its disappearance.
Whatever happened to the wording, that sentiment has been widely shared. COPs have ballooned in size while the importance of their outcomes seems to have diminished since the 2015 Paris Agreement (with the exception of the 2023 COP in Dubai where countries agreed to transition away from fossil fuels in energy systems).
The same on the surface
Two years on from those painful headlines in Baku, has anything changed for the better? You might be forgiven for thinking not. Official decisions are still made by consensus rather than the majority voting some have called for to stop blockers.
Tens of thousands of officials, activists and business execs still scurry around the halls to an ever-growing list of side events, roundtables and dialogues, while deals still come down to rows, all-nighters and jargon-filled texts adopted to rounds of applause.
But it would not be true to say that COPs have completely failed to respond to the very real need to translate the words of the Paris Agreement into action in the outside world.
Global warming is projected to be around 1.3C lower this century than it would have been if the world had not committed to tackle the climate crisis under that accord. Developing countries have a valued space at COPs in which their voices have equal weight in decision-making, unlike in many other international fora. And most importantly, perhaps, there has been a subtle shift, tipping the balance away from negotiating towards doing.
Brazil branded last year’s summit in Belém as the “COP of Implementation”, corralling the sprawling Action Agenda into six axes. This was a bid to impose some structure on the mushrooming efforts between governments, UN agencies, cities, businesses and civil society to set targets and spur faster results on their pet issues, from methane emissions to health and adaptation in conflict zones. COP30 alone saw the launch of 120 “plans to accelerate solutions”.
COP30 roadmaps off the cuff
Meanwhile, as the formal negotiations drew to a close, it was clear that consensus decision-making was evolving into something a little more improvised.
With only around half of all countries on board with the idea of a roadmap to transition away from fossil fuels, COP30 President André Corrêa do Lago announced his team would put one together over the coming year, along with another on how to meet a global goal to halt deforestation by 2030. Those roadmaps will be launched next week, presented and discussed at COP31, though it’s still unclear whether or how they’ll be incorporated into the formal negotiating agenda.
Some leading policy-makers don’t think that matters too much. Speaking to journalists before the Antalya summit, COP30 CEO Ana Toni and Dutch climate minister Stientje van Veldhoven said “coalitions of the willing” can move ahead without needing consensus from the COPs. This, they said, was evident this year at the first global conference on TAFF, co-chaired by van Veldhoven and attended by 60 countries.
“Consensus or no-consensus in the general COP doesn’t make a difference for the choices I have to make in my country to get my country to phase out fossil fuels,” said the Dutch minister. The Netherlands recently became one of the first to publish a national TAFF plan.
COP31 banks on flagship voluntary initiatives
This thinking has permeated the management and expected outcomes of this year’s COP too. Earlier this year, Türkiye, supported by international energy agencies, floated the idea of a voluntary goal to boost electrification to 35% of the world’s final energy consumption by 2035 – and this is now being touted as one of the main results to be expected from Antalya.
Türkiye is also championing a pledge on AI and climate, while co-host Australia is pushing to ease access to climate finance for least developed countries and small island states.
COP31 presidency announces AI pledge as UN climate chief says Big Tech ‘on thin ice’
None of these needs consensus. But with a political cover decision already in the works, as trailed by the COP presidents, they – and perhaps the fossil fuel roadmap – may find a home in the official text if language acceptable to most can be found, giving them them additional weight.
UNFCCC reform process in the shadows
Formal reform is underway too, if quietly. UN climate chief Simon Stiell is leading a review informed by ongoing consultations with a group of 15 well-respected climate policy experts, three of whom signed the open letter in 2024.
Among them is leading Swedish climate and sustainability scientist Johan Rockström who has strong ideas about how to make COPs function better, including a switch to majority voting. He told the same press briefing nothing stands in the way of this, because the rules of procedure for making decisions at COPs have never been formally agreed.
Still, to get away from the default setting of consensus would require agreement on a new system that may be impossible to achieve given the rise in bullying tactics by fossil fuel heavyweights.
Comment: The UN climate process was built for negotiation – now it must support implementation
The deliberations with the high-level policy gurus, as reflected in a summary of June’s session in Bonn, largely echo what’s already happening organically, calling for stronger partnerships and accountability both in and between the Action Agenda and negotiations. It doesn’t mention voting.
A general overview of the reform exercise says that “improving and optimizing the [UN climate] process over the medium to long term… will be critical to fostering trust, enhancing collaboration, and catalyzing increased ambition”.
In the short term, don’t hold your breath for anything concrete on reform at COP31 but watch for signs in what ends up dominating the headlines from Türkiye.
The post Editor’s Desk: COP reform is happening quietly, behind the headlines appeared first on Climate Home News.
Editor’s Desk: COP reform is happening quietly, behind the headlines